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ftrace_direct (used by bpf trampoline) conflicts with live patch #237

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ftrace_direct (used by bpf trampoline) conflicts with live patch #237

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kernel-patches-bot
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Pull request for series with
subject: ftrace_direct (used by bpf trampoline) conflicts with live patch
version: 1
url: https://patchwork.kernel.org/project/netdevbpf/list/?series=628034

@kernel-patches-bot
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Master branch: 38608ee
series: https://patchwork.kernel.org/project/netdevbpf/list/?series=628034
version: 1

Nobody and others added 2 commits April 1, 2022 13:33
adding ci files
83df176
@liu-song-6
ftrace_direct (used by bpf trampoline) conflicts with live patch
182ff9f 
Hi Steven,

We hit an issue with bpf trampoline and kernel live patch on the
same function.

Basically, we have tracing and live patch on the same function.
If we use kprobe (over ftrace) for tracing, it works fine with
live patch. However, fentry on the same function does not work
with live patch (the one comes later fails to attach).

After digging into this, I found this is because bpf trampoline
uses register_ftrace_direct, which enables IPMODIFY by default.
OTOH, it seems that BPF doesn't really need IPMODIFY. As BPF
trampoline does a "goto do_fexit" in jit for BPF_TRAMP_MODIFY_RETURN.

IIUC, we can let bpf trampoline and live patch work together with
an ipmodify-less version of register_ftrace_direct, like attached
below.

Does this make sense to you? Did I miss something?

Thanks in advance,
Song
@kernel-patches-bot
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Master branch: 11e17ae
series: https://patchwork.kernel.org/project/netdevbpf/list/?series=628034
version: 1

@kernel-patches-bot
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At least one diff in series https://patchwork.kernel.org/project/netdevbpf/list/?series=628034 expired. Closing PR.

@kernel-patches-bot kernel-patches-bot added rfc and removed new labels Apr 1, 2022
@kernel-patches-bot kernel-patches-bot deleted the series/628034=>bpf-next branch April 4, 2022 03:47
kernel-patches-bot pushed a commit that referenced this pull request May 17, 2022
bpf, arm64: bpf trampoline for arm64
7b98d99 
Add bpf trampoline support for arm64. Most of the logic is the same as
x86.

Tested on raspberry pi 4b and qemu with KASLR disabled (avoid long jump),
result:
 #9  /1     bpf_cookie/kprobe:OK
 #9  /2     bpf_cookie/multi_kprobe_link_api:FAIL
 #9  /3     bpf_cookie/multi_kprobe_attach_api:FAIL
 #9  /4     bpf_cookie/uprobe:OK
 #9  /5     bpf_cookie/tracepoint:OK
 #9  /6     bpf_cookie/perf_event:OK
 #9  /7     bpf_cookie/trampoline:OK
 #9  /8     bpf_cookie/lsm:OK
 #9         bpf_cookie:FAIL
 #18 /1     bpf_tcp_ca/dctcp:OK
 #18 /2     bpf_tcp_ca/cubic:OK
 #18 /3     bpf_tcp_ca/invalid_license:OK
 #18 /4     bpf_tcp_ca/dctcp_fallback:OK
 #18 /5     bpf_tcp_ca/rel_setsockopt:OK
 #18        bpf_tcp_ca:OK
 #51 /1     dummy_st_ops/dummy_st_ops_attach:OK
 #51 /2     dummy_st_ops/dummy_init_ret_value:OK
 #51 /3     dummy_st_ops/dummy_init_ptr_arg:OK
 #51 /4     dummy_st_ops/dummy_multiple_args:OK
 #51        dummy_st_ops:OK
 #55        fentry_fexit:OK
 #56        fentry_test:OK
 #57 /1     fexit_bpf2bpf/target_no_callees:OK
 #57 /2     fexit_bpf2bpf/target_yes_callees:OK
 #57 /3     fexit_bpf2bpf/func_replace:OK
 #57 /4     fexit_bpf2bpf/func_replace_verify:OK
 #57 /5     fexit_bpf2bpf/func_sockmap_update:OK
 #57 /6     fexit_bpf2bpf/func_replace_return_code:OK
 #57 /7     fexit_bpf2bpf/func_map_prog_compatibility:OK
 #57 /8     fexit_bpf2bpf/func_replace_multi:OK
 #57 /9     fexit_bpf2bpf/fmod_ret_freplace:OK
 #57        fexit_bpf2bpf:OK
 #58        fexit_sleep:OK
 #59        fexit_stress:OK
 #60        fexit_test:OK
 #67        get_func_args_test:OK
 #68        get_func_ip_test:OK
 #104       modify_return:OK
 #237       xdp_bpf2bpf:OK

bpf_cookie/multi_kprobe_link_api and bpf_cookie/multi_kprobe_attach_api
failed due to lack of multi_kprobe on arm64.

Signed-off-by: Xu Kuohai <[email protected]>
Acked-by: Song Liu <[email protected]>
kernel-patches-bot pushed a commit that referenced this pull request May 18, 2022
bpf, arm64: bpf trampoline for arm64
3d2e901 
Add bpf trampoline support for arm64. Most of the logic is the same as
x86.

Tested on raspberry pi 4b and qemu with KASLR disabled (avoid long jump),
result:
 #9  /1     bpf_cookie/kprobe:OK
 #9  /2     bpf_cookie/multi_kprobe_link_api:FAIL
 #9  /3     bpf_cookie/multi_kprobe_attach_api:FAIL
 #9  /4     bpf_cookie/uprobe:OK
 #9  /5     bpf_cookie/tracepoint:OK
 #9  /6     bpf_cookie/perf_event:OK
 #9  /7     bpf_cookie/trampoline:OK
 #9  /8     bpf_cookie/lsm:OK
 #9         bpf_cookie:FAIL
 #18 /1     bpf_tcp_ca/dctcp:OK
 #18 /2     bpf_tcp_ca/cubic:OK
 #18 /3     bpf_tcp_ca/invalid_license:OK
 #18 /4     bpf_tcp_ca/dctcp_fallback:OK
 #18 /5     bpf_tcp_ca/rel_setsockopt:OK
 #18        bpf_tcp_ca:OK
 #51 /1     dummy_st_ops/dummy_st_ops_attach:OK
 #51 /2     dummy_st_ops/dummy_init_ret_value:OK
 #51 /3     dummy_st_ops/dummy_init_ptr_arg:OK
 #51 /4     dummy_st_ops/dummy_multiple_args:OK
 #51        dummy_st_ops:OK
 #55        fentry_fexit:OK
 #56        fentry_test:OK
 #57 /1     fexit_bpf2bpf/target_no_callees:OK
 #57 /2     fexit_bpf2bpf/target_yes_callees:OK
 #57 /3     fexit_bpf2bpf/func_replace:OK
 #57 /4     fexit_bpf2bpf/func_replace_verify:OK
 #57 /5     fexit_bpf2bpf/func_sockmap_update:OK
 #57 /6     fexit_bpf2bpf/func_replace_return_code:OK
 #57 /7     fexit_bpf2bpf/func_map_prog_compatibility:OK
 #57 /8     fexit_bpf2bpf/func_replace_multi:OK
 #57 /9     fexit_bpf2bpf/fmod_ret_freplace:OK
 #57        fexit_bpf2bpf:OK
 #58        fexit_sleep:OK
 #59        fexit_stress:OK
 #60        fexit_test:OK
 #67        get_func_args_test:OK
 #68        get_func_ip_test:OK
 #104       modify_return:OK
 #237       xdp_bpf2bpf:OK

bpf_cookie/multi_kprobe_link_api and bpf_cookie/multi_kprobe_attach_api
failed due to lack of multi_kprobe on arm64.

Signed-off-by: Xu Kuohai <[email protected]>
Acked-by: Song Liu <[email protected]>
kernel-patches-bot pushed a commit that referenced this pull request May 19, 2022
bpf, arm64: bpf trampoline for arm64
d8b56b9 
Add bpf trampoline support for arm64. Most of the logic is the same as
x86.

Tested on raspberry pi 4b and qemu with KASLR disabled (avoid long jump),
result:
 #9  /1     bpf_cookie/kprobe:OK
 #9  /2     bpf_cookie/multi_kprobe_link_api:FAIL
 #9  /3     bpf_cookie/multi_kprobe_attach_api:FAIL
 #9  /4     bpf_cookie/uprobe:OK
 #9  /5     bpf_cookie/tracepoint:OK
 #9  /6     bpf_cookie/perf_event:OK
 #9  /7     bpf_cookie/trampoline:OK
 #9  /8     bpf_cookie/lsm:OK
 #9         bpf_cookie:FAIL
 #18 /1     bpf_tcp_ca/dctcp:OK
 #18 /2     bpf_tcp_ca/cubic:OK
 #18 /3     bpf_tcp_ca/invalid_license:OK
 #18 /4     bpf_tcp_ca/dctcp_fallback:OK
 #18 /5     bpf_tcp_ca/rel_setsockopt:OK
 #18        bpf_tcp_ca:OK
 #51 /1     dummy_st_ops/dummy_st_ops_attach:OK
 #51 /2     dummy_st_ops/dummy_init_ret_value:OK
 #51 /3     dummy_st_ops/dummy_init_ptr_arg:OK
 #51 /4     dummy_st_ops/dummy_multiple_args:OK
 #51        dummy_st_ops:OK
 #55        fentry_fexit:OK
 #56        fentry_test:OK
 #57 /1     fexit_bpf2bpf/target_no_callees:OK
 #57 /2     fexit_bpf2bpf/target_yes_callees:OK
 #57 /3     fexit_bpf2bpf/func_replace:OK
 #57 /4     fexit_bpf2bpf/func_replace_verify:OK
 #57 /5     fexit_bpf2bpf/func_sockmap_update:OK
 #57 /6     fexit_bpf2bpf/func_replace_return_code:OK
 #57 /7     fexit_bpf2bpf/func_map_prog_compatibility:OK
 #57 /8     fexit_bpf2bpf/func_replace_multi:OK
 #57 /9     fexit_bpf2bpf/fmod_ret_freplace:OK
 #57        fexit_bpf2bpf:OK
 #58        fexit_sleep:OK
 #59        fexit_stress:OK
 #60        fexit_test:OK
 #67        get_func_args_test:OK
 #68        get_func_ip_test:OK
 #104       modify_return:OK
 #237       xdp_bpf2bpf:OK

bpf_cookie/multi_kprobe_link_api and bpf_cookie/multi_kprobe_attach_api
failed due to lack of multi_kprobe on arm64.

Signed-off-by: Xu Kuohai <[email protected]>
Acked-by: Song Liu <[email protected]>
kernel-patches-bot pushed a commit that referenced this pull request May 19, 2022
bpf, arm64: bpf trampoline for arm64
f53019e 
Add bpf trampoline support for arm64. Most of the logic is the same as
x86.

Tested on raspberry pi 4b and qemu with KASLR disabled (avoid long jump),
result:
 #9  /1     bpf_cookie/kprobe:OK
 #9  /2     bpf_cookie/multi_kprobe_link_api:FAIL
 #9  /3     bpf_cookie/multi_kprobe_attach_api:FAIL
 #9  /4     bpf_cookie/uprobe:OK
 #9  /5     bpf_cookie/tracepoint:OK
 #9  /6     bpf_cookie/perf_event:OK
 #9  /7     bpf_cookie/trampoline:OK
 #9  /8     bpf_cookie/lsm:OK
 #9         bpf_cookie:FAIL
 #18 /1     bpf_tcp_ca/dctcp:OK
 #18 /2     bpf_tcp_ca/cubic:OK
 #18 /3     bpf_tcp_ca/invalid_license:OK
 #18 /4     bpf_tcp_ca/dctcp_fallback:OK
 #18 /5     bpf_tcp_ca/rel_setsockopt:OK
 #18        bpf_tcp_ca:OK
 #51 /1     dummy_st_ops/dummy_st_ops_attach:OK
 #51 /2     dummy_st_ops/dummy_init_ret_value:OK
 #51 /3     dummy_st_ops/dummy_init_ptr_arg:OK
 #51 /4     dummy_st_ops/dummy_multiple_args:OK
 #51        dummy_st_ops:OK
 #55        fentry_fexit:OK
 #56        fentry_test:OK
 #57 /1     fexit_bpf2bpf/target_no_callees:OK
 #57 /2     fexit_bpf2bpf/target_yes_callees:OK
 #57 /3     fexit_bpf2bpf/func_replace:OK
 #57 /4     fexit_bpf2bpf/func_replace_verify:OK
 #57 /5     fexit_bpf2bpf/func_sockmap_update:OK
 #57 /6     fexit_bpf2bpf/func_replace_return_code:OK
 #57 /7     fexit_bpf2bpf/func_map_prog_compatibility:OK
 #57 /8     fexit_bpf2bpf/func_replace_multi:OK
 #57 /9     fexit_bpf2bpf/fmod_ret_freplace:OK
 #57        fexit_bpf2bpf:OK
 #58        fexit_sleep:OK
 #59        fexit_stress:OK
 #60        fexit_test:OK
 #67        get_func_args_test:OK
 #68        get_func_ip_test:OK
 #104       modify_return:OK
 #237       xdp_bpf2bpf:OK

bpf_cookie/multi_kprobe_link_api and bpf_cookie/multi_kprobe_attach_api
failed due to lack of multi_kprobe on arm64.

Signed-off-by: Xu Kuohai <[email protected]>
Acked-by: Song Liu <[email protected]>
kernel-patches-bot pushed a commit that referenced this pull request May 20, 2022
bpf, arm64: bpf trampoline for arm64
3a9cc39 
Add bpf trampoline support for arm64. Most of the logic is the same as
x86.

Tested on raspberry pi 4b and qemu with KASLR disabled (avoid long jump),
result:
 #9  /1     bpf_cookie/kprobe:OK
 #9  /2     bpf_cookie/multi_kprobe_link_api:FAIL
 #9  /3     bpf_cookie/multi_kprobe_attach_api:FAIL
 #9  /4     bpf_cookie/uprobe:OK
 #9  /5     bpf_cookie/tracepoint:OK
 #9  /6     bpf_cookie/perf_event:OK
 #9  /7     bpf_cookie/trampoline:OK
 #9  /8     bpf_cookie/lsm:OK
 #9         bpf_cookie:FAIL
 #18 /1     bpf_tcp_ca/dctcp:OK
 #18 /2     bpf_tcp_ca/cubic:OK
 #18 /3     bpf_tcp_ca/invalid_license:OK
 #18 /4     bpf_tcp_ca/dctcp_fallback:OK
 #18 /5     bpf_tcp_ca/rel_setsockopt:OK
 #18        bpf_tcp_ca:OK
 #51 /1     dummy_st_ops/dummy_st_ops_attach:OK
 #51 /2     dummy_st_ops/dummy_init_ret_value:OK
 #51 /3     dummy_st_ops/dummy_init_ptr_arg:OK
 #51 /4     dummy_st_ops/dummy_multiple_args:OK
 #51        dummy_st_ops:OK
 #55        fentry_fexit:OK
 #56        fentry_test:OK
 #57 /1     fexit_bpf2bpf/target_no_callees:OK
 #57 /2     fexit_bpf2bpf/target_yes_callees:OK
 #57 /3     fexit_bpf2bpf/func_replace:OK
 #57 /4     fexit_bpf2bpf/func_replace_verify:OK
 #57 /5     fexit_bpf2bpf/func_sockmap_update:OK
 #57 /6     fexit_bpf2bpf/func_replace_return_code:OK
 #57 /7     fexit_bpf2bpf/func_map_prog_compatibility:OK
 #57 /8     fexit_bpf2bpf/func_replace_multi:OK
 #57 /9     fexit_bpf2bpf/fmod_ret_freplace:OK
 #57        fexit_bpf2bpf:OK
 #58        fexit_sleep:OK
 #59        fexit_stress:OK
 #60        fexit_test:OK
 #67        get_func_args_test:OK
 #68        get_func_ip_test:OK
 #104       modify_return:OK
 #237       xdp_bpf2bpf:OK

bpf_cookie/multi_kprobe_link_api and bpf_cookie/multi_kprobe_attach_api
failed due to lack of multi_kprobe on arm64.

Signed-off-by: Xu Kuohai <[email protected]>
Acked-by: Song Liu <[email protected]>
kernel-patches-bot pushed a commit that referenced this pull request May 20, 2022
bpf, arm64: bpf trampoline for arm64
a9665dd 
Add bpf trampoline support for arm64. Most of the logic is the same as
x86.

Tested on raspberry pi 4b and qemu with KASLR disabled (avoid long jump),
result:
 #9  /1     bpf_cookie/kprobe:OK
 #9  /2     bpf_cookie/multi_kprobe_link_api:FAIL
 #9  /3     bpf_cookie/multi_kprobe_attach_api:FAIL
 #9  /4     bpf_cookie/uprobe:OK
 #9  /5     bpf_cookie/tracepoint:OK
 #9  /6     bpf_cookie/perf_event:OK
 #9  /7     bpf_cookie/trampoline:OK
 #9  /8     bpf_cookie/lsm:OK
 #9         bpf_cookie:FAIL
 #18 /1     bpf_tcp_ca/dctcp:OK
 #18 /2     bpf_tcp_ca/cubic:OK
 #18 /3     bpf_tcp_ca/invalid_license:OK
 #18 /4     bpf_tcp_ca/dctcp_fallback:OK
 #18 /5     bpf_tcp_ca/rel_setsockopt:OK
 #18        bpf_tcp_ca:OK
 #51 /1     dummy_st_ops/dummy_st_ops_attach:OK
 #51 /2     dummy_st_ops/dummy_init_ret_value:OK
 #51 /3     dummy_st_ops/dummy_init_ptr_arg:OK
 #51 /4     dummy_st_ops/dummy_multiple_args:OK
 #51        dummy_st_ops:OK
 #55        fentry_fexit:OK
 #56        fentry_test:OK
 #57 /1     fexit_bpf2bpf/target_no_callees:OK
 #57 /2     fexit_bpf2bpf/target_yes_callees:OK
 #57 /3     fexit_bpf2bpf/func_replace:OK
 #57 /4     fexit_bpf2bpf/func_replace_verify:OK
 #57 /5     fexit_bpf2bpf/func_sockmap_update:OK
 #57 /6     fexit_bpf2bpf/func_replace_return_code:OK
 #57 /7     fexit_bpf2bpf/func_map_prog_compatibility:OK
 #57 /8     fexit_bpf2bpf/func_replace_multi:OK
 #57 /9     fexit_bpf2bpf/fmod_ret_freplace:OK
 #57        fexit_bpf2bpf:OK
 #58        fexit_sleep:OK
 #59        fexit_stress:OK
 #60        fexit_test:OK
 #67        get_func_args_test:OK
 #68        get_func_ip_test:OK
 #104       modify_return:OK
 #237       xdp_bpf2bpf:OK

bpf_cookie/multi_kprobe_link_api and bpf_cookie/multi_kprobe_attach_api
failed due to lack of multi_kprobe on arm64.

Signed-off-by: Xu Kuohai <[email protected]>
Acked-by: Song Liu <[email protected]>
kernel-patches-bot pushed a commit that referenced this pull request May 20, 2022
bpf, arm64: bpf trampoline for arm64
1f8504b 
Add bpf trampoline support for arm64. Most of the logic is the same as
x86.

Tested on raspberry pi 4b and qemu with KASLR disabled (avoid long jump),
result:
 #9  /1     bpf_cookie/kprobe:OK
 #9  /2     bpf_cookie/multi_kprobe_link_api:FAIL
 #9  /3     bpf_cookie/multi_kprobe_attach_api:FAIL
 #9  /4     bpf_cookie/uprobe:OK
 #9  /5     bpf_cookie/tracepoint:OK
 #9  /6     bpf_cookie/perf_event:OK
 #9  /7     bpf_cookie/trampoline:OK
 #9  /8     bpf_cookie/lsm:OK
 #9         bpf_cookie:FAIL
 #18 /1     bpf_tcp_ca/dctcp:OK
 #18 /2     bpf_tcp_ca/cubic:OK
 #18 /3     bpf_tcp_ca/invalid_license:OK
 #18 /4     bpf_tcp_ca/dctcp_fallback:OK
 #18 /5     bpf_tcp_ca/rel_setsockopt:OK
 #18        bpf_tcp_ca:OK
 #51 /1     dummy_st_ops/dummy_st_ops_attach:OK
 #51 /2     dummy_st_ops/dummy_init_ret_value:OK
 #51 /3     dummy_st_ops/dummy_init_ptr_arg:OK
 #51 /4     dummy_st_ops/dummy_multiple_args:OK
 #51        dummy_st_ops:OK
 #55        fentry_fexit:OK
 #56        fentry_test:OK
 #57 /1     fexit_bpf2bpf/target_no_callees:OK
 #57 /2     fexit_bpf2bpf/target_yes_callees:OK
 #57 /3     fexit_bpf2bpf/func_replace:OK
 #57 /4     fexit_bpf2bpf/func_replace_verify:OK
 #57 /5     fexit_bpf2bpf/func_sockmap_update:OK
 #57 /6     fexit_bpf2bpf/func_replace_return_code:OK
 #57 /7     fexit_bpf2bpf/func_map_prog_compatibility:OK
 #57 /8     fexit_bpf2bpf/func_replace_multi:OK
 #57 /9     fexit_bpf2bpf/fmod_ret_freplace:OK
 #57        fexit_bpf2bpf:OK
 #58        fexit_sleep:OK
 #59        fexit_stress:OK
 #60        fexit_test:OK
 #67        get_func_args_test:OK
 #68        get_func_ip_test:OK
 #104       modify_return:OK
 #237       xdp_bpf2bpf:OK

bpf_cookie/multi_kprobe_link_api and bpf_cookie/multi_kprobe_attach_api
failed due to lack of multi_kprobe on arm64.

Signed-off-by: Xu Kuohai <[email protected]>
Acked-by: Song Liu <[email protected]>
kernel-patches-bot pushed a commit that referenced this pull request May 20, 2022
bpf, arm64: bpf trampoline for arm64
8a074a2 
Add bpf trampoline support for arm64. Most of the logic is the same as
x86.

Tested on raspberry pi 4b and qemu with KASLR disabled (avoid long jump),
result:
 #9  /1     bpf_cookie/kprobe:OK
 #9  /2     bpf_cookie/multi_kprobe_link_api:FAIL
 #9  /3     bpf_cookie/multi_kprobe_attach_api:FAIL
 #9  /4     bpf_cookie/uprobe:OK
 #9  /5     bpf_cookie/tracepoint:OK
 #9  /6     bpf_cookie/perf_event:OK
 #9  /7     bpf_cookie/trampoline:OK
 #9  /8     bpf_cookie/lsm:OK
 #9         bpf_cookie:FAIL
 #18 /1     bpf_tcp_ca/dctcp:OK
 #18 /2     bpf_tcp_ca/cubic:OK
 #18 /3     bpf_tcp_ca/invalid_license:OK
 #18 /4     bpf_tcp_ca/dctcp_fallback:OK
 #18 /5     bpf_tcp_ca/rel_setsockopt:OK
 #18        bpf_tcp_ca:OK
 #51 /1     dummy_st_ops/dummy_st_ops_attach:OK
 #51 /2     dummy_st_ops/dummy_init_ret_value:OK
 #51 /3     dummy_st_ops/dummy_init_ptr_arg:OK
 #51 /4     dummy_st_ops/dummy_multiple_args:OK
 #51        dummy_st_ops:OK
 #55        fentry_fexit:OK
 #56        fentry_test:OK
 #57 /1     fexit_bpf2bpf/target_no_callees:OK
 #57 /2     fexit_bpf2bpf/target_yes_callees:OK
 #57 /3     fexit_bpf2bpf/func_replace:OK
 #57 /4     fexit_bpf2bpf/func_replace_verify:OK
 #57 /5     fexit_bpf2bpf/func_sockmap_update:OK
 #57 /6     fexit_bpf2bpf/func_replace_return_code:OK
 #57 /7     fexit_bpf2bpf/func_map_prog_compatibility:OK
 #57 /8     fexit_bpf2bpf/func_replace_multi:OK
 #57 /9     fexit_bpf2bpf/fmod_ret_freplace:OK
 #57        fexit_bpf2bpf:OK
 #58        fexit_sleep:OK
 #59        fexit_stress:OK
 #60        fexit_test:OK
 #67        get_func_args_test:OK
 #68        get_func_ip_test:OK
 #104       modify_return:OK
 #237       xdp_bpf2bpf:OK

bpf_cookie/multi_kprobe_link_api and bpf_cookie/multi_kprobe_attach_api
failed due to lack of multi_kprobe on arm64.

Signed-off-by: Xu Kuohai <[email protected]>
Acked-by: Song Liu <[email protected]>
kernel-patches-bot pushed a commit that referenced this pull request May 20, 2022
bpf, arm64: bpf trampoline for arm64
428b70d 
Add bpf trampoline support for arm64. Most of the logic is the same as
x86.

Tested on raspberry pi 4b and qemu with KASLR disabled (avoid long jump),
result:
 #9  /1     bpf_cookie/kprobe:OK
 #9  /2     bpf_cookie/multi_kprobe_link_api:FAIL
 #9  /3     bpf_cookie/multi_kprobe_attach_api:FAIL
 #9  /4     bpf_cookie/uprobe:OK
 #9  /5     bpf_cookie/tracepoint:OK
 #9  /6     bpf_cookie/perf_event:OK
 #9  /7     bpf_cookie/trampoline:OK
 #9  /8     bpf_cookie/lsm:OK
 #9         bpf_cookie:FAIL
 #18 /1     bpf_tcp_ca/dctcp:OK
 #18 /2     bpf_tcp_ca/cubic:OK
 #18 /3     bpf_tcp_ca/invalid_license:OK
 #18 /4     bpf_tcp_ca/dctcp_fallback:OK
 #18 /5     bpf_tcp_ca/rel_setsockopt:OK
 #18        bpf_tcp_ca:OK
 #51 /1     dummy_st_ops/dummy_st_ops_attach:OK
 #51 /2     dummy_st_ops/dummy_init_ret_value:OK
 #51 /3     dummy_st_ops/dummy_init_ptr_arg:OK
 #51 /4     dummy_st_ops/dummy_multiple_args:OK
 #51        dummy_st_ops:OK
 #55        fentry_fexit:OK
 #56        fentry_test:OK
 #57 /1     fexit_bpf2bpf/target_no_callees:OK
 #57 /2     fexit_bpf2bpf/target_yes_callees:OK
 #57 /3     fexit_bpf2bpf/func_replace:OK
 #57 /4     fexit_bpf2bpf/func_replace_verify:OK
 #57 /5     fexit_bpf2bpf/func_sockmap_update:OK
 #57 /6     fexit_bpf2bpf/func_replace_return_code:OK
 #57 /7     fexit_bpf2bpf/func_map_prog_compatibility:OK
 #57 /8     fexit_bpf2bpf/func_replace_multi:OK
 #57 /9     fexit_bpf2bpf/fmod_ret_freplace:OK
 #57        fexit_bpf2bpf:OK
 #58        fexit_sleep:OK
 #59        fexit_stress:OK
 #60        fexit_test:OK
 #67        get_func_args_test:OK
 #68        get_func_ip_test:OK
 #104       modify_return:OK
 #237       xdp_bpf2bpf:OK

bpf_cookie/multi_kprobe_link_api and bpf_cookie/multi_kprobe_attach_api
failed due to lack of multi_kprobe on arm64.

Signed-off-by: Xu Kuohai <[email protected]>
Acked-by: Song Liu <[email protected]>
kernel-patches-bot pushed a commit that referenced this pull request May 20, 2022
bpf, arm64: bpf trampoline for arm64
76e96b0 
Add bpf trampoline support for arm64. Most of the logic is the same as
x86.

Tested on raspberry pi 4b and qemu with KASLR disabled (avoid long jump),
result:
 #9  /1     bpf_cookie/kprobe:OK
 #9  /2     bpf_cookie/multi_kprobe_link_api:FAIL
 #9  /3     bpf_cookie/multi_kprobe_attach_api:FAIL
 #9  /4     bpf_cookie/uprobe:OK
 #9  /5     bpf_cookie/tracepoint:OK
 #9  /6     bpf_cookie/perf_event:OK
 #9  /7     bpf_cookie/trampoline:OK
 #9  /8     bpf_cookie/lsm:OK
 #9         bpf_cookie:FAIL
 #18 /1     bpf_tcp_ca/dctcp:OK
 #18 /2     bpf_tcp_ca/cubic:OK
 #18 /3     bpf_tcp_ca/invalid_license:OK
 #18 /4     bpf_tcp_ca/dctcp_fallback:OK
 #18 /5     bpf_tcp_ca/rel_setsockopt:OK
 #18        bpf_tcp_ca:OK
 #51 /1     dummy_st_ops/dummy_st_ops_attach:OK
 #51 /2     dummy_st_ops/dummy_init_ret_value:OK
 #51 /3     dummy_st_ops/dummy_init_ptr_arg:OK
 #51 /4     dummy_st_ops/dummy_multiple_args:OK
 #51        dummy_st_ops:OK
 #55        fentry_fexit:OK
 #56        fentry_test:OK
 #57 /1     fexit_bpf2bpf/target_no_callees:OK
 #57 /2     fexit_bpf2bpf/target_yes_callees:OK
 #57 /3     fexit_bpf2bpf/func_replace:OK
 #57 /4     fexit_bpf2bpf/func_replace_verify:OK
 #57 /5     fexit_bpf2bpf/func_sockmap_update:OK
 #57 /6     fexit_bpf2bpf/func_replace_return_code:OK
 #57 /7     fexit_bpf2bpf/func_map_prog_compatibility:OK
 #57 /8     fexit_bpf2bpf/func_replace_multi:OK
 #57 /9     fexit_bpf2bpf/fmod_ret_freplace:OK
 #57        fexit_bpf2bpf:OK
 #58        fexit_sleep:OK
 #59        fexit_stress:OK
 #60        fexit_test:OK
 #67        get_func_args_test:OK
 #68        get_func_ip_test:OK
 #104       modify_return:OK
 #237       xdp_bpf2bpf:OK

bpf_cookie/multi_kprobe_link_api and bpf_cookie/multi_kprobe_attach_api
failed due to lack of multi_kprobe on arm64.

Signed-off-by: Xu Kuohai <[email protected]>
Acked-by: Song Liu <[email protected]>
kernel-patches-bot pushed a commit that referenced this pull request May 21, 2022
bpf, arm64: bpf trampoline for arm64
effbfe1 
Add bpf trampoline support for arm64. Most of the logic is the same as
x86.

Tested on raspberry pi 4b and qemu with KASLR disabled (avoid long jump),
result:
 #9  /1     bpf_cookie/kprobe:OK
 #9  /2     bpf_cookie/multi_kprobe_link_api:FAIL
 #9  /3     bpf_cookie/multi_kprobe_attach_api:FAIL
 #9  /4     bpf_cookie/uprobe:OK
 #9  /5     bpf_cookie/tracepoint:OK
 #9  /6     bpf_cookie/perf_event:OK
 #9  /7     bpf_cookie/trampoline:OK
 #9  /8     bpf_cookie/lsm:OK
 #9         bpf_cookie:FAIL
 #18 /1     bpf_tcp_ca/dctcp:OK
 #18 /2     bpf_tcp_ca/cubic:OK
 #18 /3     bpf_tcp_ca/invalid_license:OK
 #18 /4     bpf_tcp_ca/dctcp_fallback:OK
 #18 /5     bpf_tcp_ca/rel_setsockopt:OK
 #18        bpf_tcp_ca:OK
 #51 /1     dummy_st_ops/dummy_st_ops_attach:OK
 #51 /2     dummy_st_ops/dummy_init_ret_value:OK
 #51 /3     dummy_st_ops/dummy_init_ptr_arg:OK
 #51 /4     dummy_st_ops/dummy_multiple_args:OK
 #51        dummy_st_ops:OK
 #55        fentry_fexit:OK
 #56        fentry_test:OK
 #57 /1     fexit_bpf2bpf/target_no_callees:OK
 #57 /2     fexit_bpf2bpf/target_yes_callees:OK
 #57 /3     fexit_bpf2bpf/func_replace:OK
 #57 /4     fexit_bpf2bpf/func_replace_verify:OK
 #57 /5     fexit_bpf2bpf/func_sockmap_update:OK
 #57 /6     fexit_bpf2bpf/func_replace_return_code:OK
 #57 /7     fexit_bpf2bpf/func_map_prog_compatibility:OK
 #57 /8     fexit_bpf2bpf/func_replace_multi:OK
 #57 /9     fexit_bpf2bpf/fmod_ret_freplace:OK
 #57        fexit_bpf2bpf:OK
 #58        fexit_sleep:OK
 #59        fexit_stress:OK
 #60        fexit_test:OK
 #67        get_func_args_test:OK
 #68        get_func_ip_test:OK
 #104       modify_return:OK
 #237       xdp_bpf2bpf:OK

bpf_cookie/multi_kprobe_link_api and bpf_cookie/multi_kprobe_attach_api
failed due to lack of multi_kprobe on arm64.

Signed-off-by: Xu Kuohai <[email protected]>
Acked-by: Song Liu <[email protected]>
kernel-patches-bot pushed a commit that referenced this pull request May 21, 2022
bpf, arm64: bpf trampoline for arm64
14cc7a0 
Add bpf trampoline support for arm64. Most of the logic is the same as
x86.

Tested on raspberry pi 4b and qemu with KASLR disabled (avoid long jump),
result:
 #9  /1     bpf_cookie/kprobe:OK
 #9  /2     bpf_cookie/multi_kprobe_link_api:FAIL
 #9  /3     bpf_cookie/multi_kprobe_attach_api:FAIL
 #9  /4     bpf_cookie/uprobe:OK
 #9  /5     bpf_cookie/tracepoint:OK
 #9  /6     bpf_cookie/perf_event:OK
 #9  /7     bpf_cookie/trampoline:OK
 #9  /8     bpf_cookie/lsm:OK
 #9         bpf_cookie:FAIL
 #18 /1     bpf_tcp_ca/dctcp:OK
 #18 /2     bpf_tcp_ca/cubic:OK
 #18 /3     bpf_tcp_ca/invalid_license:OK
 #18 /4     bpf_tcp_ca/dctcp_fallback:OK
 #18 /5     bpf_tcp_ca/rel_setsockopt:OK
 #18        bpf_tcp_ca:OK
 #51 /1     dummy_st_ops/dummy_st_ops_attach:OK
 #51 /2     dummy_st_ops/dummy_init_ret_value:OK
 #51 /3     dummy_st_ops/dummy_init_ptr_arg:OK
 #51 /4     dummy_st_ops/dummy_multiple_args:OK
 #51        dummy_st_ops:OK
 #55        fentry_fexit:OK
 #56        fentry_test:OK
 #57 /1     fexit_bpf2bpf/target_no_callees:OK
 #57 /2     fexit_bpf2bpf/target_yes_callees:OK
 #57 /3     fexit_bpf2bpf/func_replace:OK
 #57 /4     fexit_bpf2bpf/func_replace_verify:OK
 #57 /5     fexit_bpf2bpf/func_sockmap_update:OK
 #57 /6     fexit_bpf2bpf/func_replace_return_code:OK
 #57 /7     fexit_bpf2bpf/func_map_prog_compatibility:OK
 #57 /8     fexit_bpf2bpf/func_replace_multi:OK
 #57 /9     fexit_bpf2bpf/fmod_ret_freplace:OK
 #57        fexit_bpf2bpf:OK
 #58        fexit_sleep:OK
 #59        fexit_stress:OK
 #60        fexit_test:OK
 #67        get_func_args_test:OK
 #68        get_func_ip_test:OK
 #104       modify_return:OK
 #237       xdp_bpf2bpf:OK

bpf_cookie/multi_kprobe_link_api and bpf_cookie/multi_kprobe_attach_api
failed due to lack of multi_kprobe on arm64.

Signed-off-by: Xu Kuohai <[email protected]>
Acked-by: Song Liu <[email protected]>
kernel-patches-bot pushed a commit that referenced this pull request May 21, 2022
bpf, arm64: bpf trampoline for arm64
7fa9691 
Add bpf trampoline support for arm64. Most of the logic is the same as
x86.

Tested on raspberry pi 4b and qemu with KASLR disabled (avoid long jump),
result:
 #9  /1     bpf_cookie/kprobe:OK
 #9  /2     bpf_cookie/multi_kprobe_link_api:FAIL
 #9  /3     bpf_cookie/multi_kprobe_attach_api:FAIL
 #9  /4     bpf_cookie/uprobe:OK
 #9  /5     bpf_cookie/tracepoint:OK
 #9  /6     bpf_cookie/perf_event:OK
 #9  /7     bpf_cookie/trampoline:OK
 #9  /8     bpf_cookie/lsm:OK
 #9         bpf_cookie:FAIL
 #18 /1     bpf_tcp_ca/dctcp:OK
 #18 /2     bpf_tcp_ca/cubic:OK
 #18 /3     bpf_tcp_ca/invalid_license:OK
 #18 /4     bpf_tcp_ca/dctcp_fallback:OK
 #18 /5     bpf_tcp_ca/rel_setsockopt:OK
 #18        bpf_tcp_ca:OK
 #51 /1     dummy_st_ops/dummy_st_ops_attach:OK
 #51 /2     dummy_st_ops/dummy_init_ret_value:OK
 #51 /3     dummy_st_ops/dummy_init_ptr_arg:OK
 #51 /4     dummy_st_ops/dummy_multiple_args:OK
 #51        dummy_st_ops:OK
 #55        fentry_fexit:OK
 #56        fentry_test:OK
 #57 /1     fexit_bpf2bpf/target_no_callees:OK
 #57 /2     fexit_bpf2bpf/target_yes_callees:OK
 #57 /3     fexit_bpf2bpf/func_replace:OK
 #57 /4     fexit_bpf2bpf/func_replace_verify:OK
 #57 /5     fexit_bpf2bpf/func_sockmap_update:OK
 #57 /6     fexit_bpf2bpf/func_replace_return_code:OK
 #57 /7     fexit_bpf2bpf/func_map_prog_compatibility:OK
 #57 /8     fexit_bpf2bpf/func_replace_multi:OK
 #57 /9     fexit_bpf2bpf/fmod_ret_freplace:OK
 #57        fexit_bpf2bpf:OK
 #58        fexit_sleep:OK
 #59        fexit_stress:OK
 #60        fexit_test:OK
 #67        get_func_args_test:OK
 #68        get_func_ip_test:OK
 #104       modify_return:OK
 #237       xdp_bpf2bpf:OK

bpf_cookie/multi_kprobe_link_api and bpf_cookie/multi_kprobe_attach_api
failed due to lack of multi_kprobe on arm64.

Signed-off-by: Xu Kuohai <[email protected]>
Acked-by: Song Liu <[email protected]>
kernel-patches-bot pushed a commit that referenced this pull request May 23, 2022
bpf, arm64: bpf trampoline for arm64
b3903ac 
Add bpf trampoline support for arm64. Most of the logic is the same as
x86.

Tested on raspberry pi 4b and qemu with KASLR disabled (avoid long jump),
result:
 #9  /1     bpf_cookie/kprobe:OK
 #9  /2     bpf_cookie/multi_kprobe_link_api:FAIL
 #9  /3     bpf_cookie/multi_kprobe_attach_api:FAIL
 #9  /4     bpf_cookie/uprobe:OK
 #9  /5     bpf_cookie/tracepoint:OK
 #9  /6     bpf_cookie/perf_event:OK
 #9  /7     bpf_cookie/trampoline:OK
 #9  /8     bpf_cookie/lsm:OK
 #9         bpf_cookie:FAIL
 #18 /1     bpf_tcp_ca/dctcp:OK
 #18 /2     bpf_tcp_ca/cubic:OK
 #18 /3     bpf_tcp_ca/invalid_license:OK
 #18 /4     bpf_tcp_ca/dctcp_fallback:OK
 #18 /5     bpf_tcp_ca/rel_setsockopt:OK
 #18        bpf_tcp_ca:OK
 #51 /1     dummy_st_ops/dummy_st_ops_attach:OK
 #51 /2     dummy_st_ops/dummy_init_ret_value:OK
 #51 /3     dummy_st_ops/dummy_init_ptr_arg:OK
 #51 /4     dummy_st_ops/dummy_multiple_args:OK
 #51        dummy_st_ops:OK
 #55        fentry_fexit:OK
 #56        fentry_test:OK
 #57 /1     fexit_bpf2bpf/target_no_callees:OK
 #57 /2     fexit_bpf2bpf/target_yes_callees:OK
 #57 /3     fexit_bpf2bpf/func_replace:OK
 #57 /4     fexit_bpf2bpf/func_replace_verify:OK
 #57 /5     fexit_bpf2bpf/func_sockmap_update:OK
 #57 /6     fexit_bpf2bpf/func_replace_return_code:OK
 #57 /7     fexit_bpf2bpf/func_map_prog_compatibility:OK
 #57 /8     fexit_bpf2bpf/func_replace_multi:OK
 #57 /9     fexit_bpf2bpf/fmod_ret_freplace:OK
 #57        fexit_bpf2bpf:OK
 #58        fexit_sleep:OK
 #59        fexit_stress:OK
 #60        fexit_test:OK
 #67        get_func_args_test:OK
 #68        get_func_ip_test:OK
 #104       modify_return:OK
 #237       xdp_bpf2bpf:OK

bpf_cookie/multi_kprobe_link_api and bpf_cookie/multi_kprobe_attach_api
failed due to lack of multi_kprobe on arm64.

Signed-off-by: Xu Kuohai <[email protected]>
Acked-by: Song Liu <[email protected]>
Acked-by: KP Singh <[email protected]>
kernel-patches-bot pushed a commit that referenced this pull request May 23, 2022
bpf, arm64: bpf trampoline for arm64
d60f9e5 
Add bpf trampoline support for arm64. Most of the logic is the same as
x86.

Tested on raspberry pi 4b and qemu with KASLR disabled (avoid long jump),
result:
 #9  /1     bpf_cookie/kprobe:OK
 #9  /2     bpf_cookie/multi_kprobe_link_api:FAIL
 #9  /3     bpf_cookie/multi_kprobe_attach_api:FAIL
 #9  /4     bpf_cookie/uprobe:OK
 #9  /5     bpf_cookie/tracepoint:OK
 #9  /6     bpf_cookie/perf_event:OK
 #9  /7     bpf_cookie/trampoline:OK
 #9  /8     bpf_cookie/lsm:OK
 #9         bpf_cookie:FAIL
 #18 /1     bpf_tcp_ca/dctcp:OK
 #18 /2     bpf_tcp_ca/cubic:OK
 #18 /3     bpf_tcp_ca/invalid_license:OK
 #18 /4     bpf_tcp_ca/dctcp_fallback:OK
 #18 /5     bpf_tcp_ca/rel_setsockopt:OK
 #18        bpf_tcp_ca:OK
 #51 /1     dummy_st_ops/dummy_st_ops_attach:OK
 #51 /2     dummy_st_ops/dummy_init_ret_value:OK
 #51 /3     dummy_st_ops/dummy_init_ptr_arg:OK
 #51 /4     dummy_st_ops/dummy_multiple_args:OK
 #51        dummy_st_ops:OK
 #55        fentry_fexit:OK
 #56        fentry_test:OK
 #57 /1     fexit_bpf2bpf/target_no_callees:OK
 #57 /2     fexit_bpf2bpf/target_yes_callees:OK
 #57 /3     fexit_bpf2bpf/func_replace:OK
 #57 /4     fexit_bpf2bpf/func_replace_verify:OK
 #57 /5     fexit_bpf2bpf/func_sockmap_update:OK
 #57 /6     fexit_bpf2bpf/func_replace_return_code:OK
 #57 /7     fexit_bpf2bpf/func_map_prog_compatibility:OK
 #57 /8     fexit_bpf2bpf/func_replace_multi:OK
 #57 /9     fexit_bpf2bpf/fmod_ret_freplace:OK
 #57        fexit_bpf2bpf:OK
 #58        fexit_sleep:OK
 #59        fexit_stress:OK
 #60        fexit_test:OK
 #67        get_func_args_test:OK
 #68        get_func_ip_test:OK
 #104       modify_return:OK
 #237       xdp_bpf2bpf:OK

bpf_cookie/multi_kprobe_link_api and bpf_cookie/multi_kprobe_attach_api
failed due to lack of multi_kprobe on arm64.

Signed-off-by: Xu Kuohai <[email protected]>
Acked-by: Song Liu <[email protected]>
Acked-by: KP Singh <[email protected]>
kernel-patches-bot pushed a commit that referenced this pull request May 23, 2022
bpf, arm64: bpf trampoline for arm64
814dbda 
Add bpf trampoline support for arm64. Most of the logic is the same as
x86.

Tested on raspberry pi 4b and qemu with KASLR disabled (avoid long jump),
result:
 #9  /1     bpf_cookie/kprobe:OK
 #9  /2     bpf_cookie/multi_kprobe_link_api:FAIL
 #9  /3     bpf_cookie/multi_kprobe_attach_api:FAIL
 #9  /4     bpf_cookie/uprobe:OK
 #9  /5     bpf_cookie/tracepoint:OK
 #9  /6     bpf_cookie/perf_event:OK
 #9  /7     bpf_cookie/trampoline:OK
 #9  /8     bpf_cookie/lsm:OK
 #9         bpf_cookie:FAIL
 #18 /1     bpf_tcp_ca/dctcp:OK
 #18 /2     bpf_tcp_ca/cubic:OK
 #18 /3     bpf_tcp_ca/invalid_license:OK
 #18 /4     bpf_tcp_ca/dctcp_fallback:OK
 #18 /5     bpf_tcp_ca/rel_setsockopt:OK
 #18        bpf_tcp_ca:OK
 #51 /1     dummy_st_ops/dummy_st_ops_attach:OK
 #51 /2     dummy_st_ops/dummy_init_ret_value:OK
 #51 /3     dummy_st_ops/dummy_init_ptr_arg:OK
 #51 /4     dummy_st_ops/dummy_multiple_args:OK
 #51        dummy_st_ops:OK
 #55        fentry_fexit:OK
 #56        fentry_test:OK
 #57 /1     fexit_bpf2bpf/target_no_callees:OK
 #57 /2     fexit_bpf2bpf/target_yes_callees:OK
 #57 /3     fexit_bpf2bpf/func_replace:OK
 #57 /4     fexit_bpf2bpf/func_replace_verify:OK
 #57 /5     fexit_bpf2bpf/func_sockmap_update:OK
 #57 /6     fexit_bpf2bpf/func_replace_return_code:OK
 #57 /7     fexit_bpf2bpf/func_map_prog_compatibility:OK
 #57 /8     fexit_bpf2bpf/func_replace_multi:OK
 #57 /9     fexit_bpf2bpf/fmod_ret_freplace:OK
 #57        fexit_bpf2bpf:OK
 #58        fexit_sleep:OK
 #59        fexit_stress:OK
 #60        fexit_test:OK
 #67        get_func_args_test:OK
 #68        get_func_ip_test:OK
 #104       modify_return:OK
 #237       xdp_bpf2bpf:OK

bpf_cookie/multi_kprobe_link_api and bpf_cookie/multi_kprobe_attach_api
failed due to lack of multi_kprobe on arm64.

Signed-off-by: Xu Kuohai <[email protected]>
Acked-by: Song Liu <[email protected]>
Acked-by: KP Singh <[email protected]>
kernel-patches-bot pushed a commit that referenced this pull request May 23, 2022
bpf, arm64: bpf trampoline for arm64
b7ea4a3 
Add bpf trampoline support for arm64. Most of the logic is the same as
x86.

Tested on raspberry pi 4b and qemu with KASLR disabled (avoid long jump),
result:
 #9  /1     bpf_cookie/kprobe:OK
 #9  /2     bpf_cookie/multi_kprobe_link_api:FAIL
 #9  /3     bpf_cookie/multi_kprobe_attach_api:FAIL
 #9  /4     bpf_cookie/uprobe:OK
 #9  /5     bpf_cookie/tracepoint:OK
 #9  /6     bpf_cookie/perf_event:OK
 #9  /7     bpf_cookie/trampoline:OK
 #9  /8     bpf_cookie/lsm:OK
 #9         bpf_cookie:FAIL
 #18 /1     bpf_tcp_ca/dctcp:OK
 #18 /2     bpf_tcp_ca/cubic:OK
 #18 /3     bpf_tcp_ca/invalid_license:OK
 #18 /4     bpf_tcp_ca/dctcp_fallback:OK
 #18 /5     bpf_tcp_ca/rel_setsockopt:OK
 #18        bpf_tcp_ca:OK
 #51 /1     dummy_st_ops/dummy_st_ops_attach:OK
 #51 /2     dummy_st_ops/dummy_init_ret_value:OK
 #51 /3     dummy_st_ops/dummy_init_ptr_arg:OK
 #51 /4     dummy_st_ops/dummy_multiple_args:OK
 #51        dummy_st_ops:OK
 #55        fentry_fexit:OK
 #56        fentry_test:OK
 #57 /1     fexit_bpf2bpf/target_no_callees:OK
 #57 /2     fexit_bpf2bpf/target_yes_callees:OK
 #57 /3     fexit_bpf2bpf/func_replace:OK
 #57 /4     fexit_bpf2bpf/func_replace_verify:OK
 #57 /5     fexit_bpf2bpf/func_sockmap_update:OK
 #57 /6     fexit_bpf2bpf/func_replace_return_code:OK
 #57 /7     fexit_bpf2bpf/func_map_prog_compatibility:OK
 #57 /8     fexit_bpf2bpf/func_replace_multi:OK
 #57 /9     fexit_bpf2bpf/fmod_ret_freplace:OK
 #57        fexit_bpf2bpf:OK
 #58        fexit_sleep:OK
 #59        fexit_stress:OK
 #60        fexit_test:OK
 #67        get_func_args_test:OK
 #68        get_func_ip_test:OK
 #104       modify_return:OK
 #237       xdp_bpf2bpf:OK

bpf_cookie/multi_kprobe_link_api and bpf_cookie/multi_kprobe_attach_api
failed due to lack of multi_kprobe on arm64.

Signed-off-by: Xu Kuohai <[email protected]>
Acked-by: Song Liu <[email protected]>
Acked-by: KP Singh <[email protected]>
kernel-patches-bot pushed a commit that referenced this pull request Jul 11, 2022
bpf, arm64: bpf trampoline for arm64
729324b 
This is arm64 version of commit fec56f5 ("bpf: Introduce BPF
trampoline"). A bpf trampoline converts native calling convention to bpf
calling convention and is used to implement various bpf features, such
as fentry, fexit, fmod_ret and struct_ops.

This patch does essentially the same thing that bpf trampoline does on x86.

Tested on raspberry pi 4b and qemu:

 #18 /1     bpf_tcp_ca/dctcp:OK
 #18 /2     bpf_tcp_ca/cubic:OK
 #18 /3     bpf_tcp_ca/invalid_license:OK
 #18 /4     bpf_tcp_ca/dctcp_fallback:OK
 #18 /5     bpf_tcp_ca/rel_setsockopt:OK
 #18        bpf_tcp_ca:OK
 #51 /1     dummy_st_ops/dummy_st_ops_attach:OK
 #51 /2     dummy_st_ops/dummy_init_ret_value:OK
 #51 /3     dummy_st_ops/dummy_init_ptr_arg:OK
 #51 /4     dummy_st_ops/dummy_multiple_args:OK
 #51        dummy_st_ops:OK
 #57 /1     fexit_bpf2bpf/target_no_callees:OK
 #57 /2     fexit_bpf2bpf/target_yes_callees:OK
 #57 /3     fexit_bpf2bpf/func_replace:OK
 #57 /4     fexit_bpf2bpf/func_replace_verify:OK
 #57 /5     fexit_bpf2bpf/func_sockmap_update:OK
 #57 /6     fexit_bpf2bpf/func_replace_return_code:OK
 #57 /7     fexit_bpf2bpf/func_map_prog_compatibility:OK
 #57 /8     fexit_bpf2bpf/func_replace_multi:OK
 #57 /9     fexit_bpf2bpf/fmod_ret_freplace:OK
 #57        fexit_bpf2bpf:OK
 #237       xdp_bpf2bpf:OK

Signed-off-by: Xu Kuohai <[email protected]>
Acked-by: Song Liu <[email protected]>
Acked-by: KP Singh <[email protected]>
Reviewed-by: Jean-Philippe Brucker <[email protected]>
kernel-patches-bot pushed a commit that referenced this pull request Jul 11, 2022
@borkmann
bpf, arm64: Add bpf trampoline for arm64
efc9909 
This is arm64 version of commit fec56f5 ("bpf: Introduce BPF
trampoline"). A bpf trampoline converts native calling convention to bpf
calling convention and is used to implement various bpf features, such
as fentry, fexit, fmod_ret and struct_ops.

This patch does essentially the same thing that bpf trampoline does on x86.

Tested on Raspberry Pi 4B and qemu:

 #18 /1     bpf_tcp_ca/dctcp:OK
 #18 /2     bpf_tcp_ca/cubic:OK
 #18 /3     bpf_tcp_ca/invalid_license:OK
 #18 /4     bpf_tcp_ca/dctcp_fallback:OK
 #18 /5     bpf_tcp_ca/rel_setsockopt:OK
 #18        bpf_tcp_ca:OK
 #51 /1     dummy_st_ops/dummy_st_ops_attach:OK
 #51 /2     dummy_st_ops/dummy_init_ret_value:OK
 #51 /3     dummy_st_ops/dummy_init_ptr_arg:OK
 #51 /4     dummy_st_ops/dummy_multiple_args:OK
 #51        dummy_st_ops:OK
 #57 /1     fexit_bpf2bpf/target_no_callees:OK
 #57 /2     fexit_bpf2bpf/target_yes_callees:OK
 #57 /3     fexit_bpf2bpf/func_replace:OK
 #57 /4     fexit_bpf2bpf/func_replace_verify:OK
 #57 /5     fexit_bpf2bpf/func_sockmap_update:OK
 #57 /6     fexit_bpf2bpf/func_replace_return_code:OK
 #57 /7     fexit_bpf2bpf/func_map_prog_compatibility:OK
 #57 /8     fexit_bpf2bpf/func_replace_multi:OK
 #57 /9     fexit_bpf2bpf/fmod_ret_freplace:OK
 #57        fexit_bpf2bpf:OK
 #237       xdp_bpf2bpf:OK

Signed-off-by: Xu Kuohai <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
Reviewed-by: Jean-Philippe Brucker <[email protected]>
Acked-by: Song Liu <[email protected]>
Acked-by: KP Singh <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Jun 7, 2023
@borkmann
selftests/bpf: Add mprog API tests for BPF tcx opts
4e5cfb3 
Add a big batch of test coverage to assert all aspects of the tcx opts
attach, detach and query API:

  # ./vmtest.sh -- ./test_progs -t tc_opts
  [...]
  #237     tc_opts_after:OK
  #238     tc_opts_append:OK
  #239     tc_opts_basic:OK
  #240     tc_opts_before:OK
  #241     tc_opts_both:OK
  #242     tc_opts_chain_classic:OK
  #243     tc_opts_demixed:OK
  #244     tc_opts_detach:OK
  #245     tc_opts_detach_after:OK
  #246     tc_opts_detach_before:OK
  #247     tc_opts_dev_cleanup:OK
  #248     tc_opts_first:OK
  #249     tc_opts_invalid:OK
  #250     tc_opts_last:OK
  #251     tc_opts_mixed:OK
  #252     tc_opts_prepend:OK
  #253     tc_opts_replace:OK
  #254     tc_opts_revision:OK
  Summary: 18/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Jun 8, 2023
@borkmann
selftests/bpf: Add mprog API tests for BPF tcx opts
a9725a5 
Add a big batch of test coverage to assert all aspects of the tcx opts
attach, detach and query API:

  # ./vmtest.sh -- ./test_progs -t tc_opts
  [...]
  #237     tc_opts_after:OK
  #238     tc_opts_append:OK
  #239     tc_opts_basic:OK
  #240     tc_opts_before:OK
  #241     tc_opts_both:OK
  #242     tc_opts_chain_classic:OK
  #243     tc_opts_demixed:OK
  #244     tc_opts_detach:OK
  #245     tc_opts_detach_after:OK
  #246     tc_opts_detach_before:OK
  #247     tc_opts_dev_cleanup:OK
  #248     tc_opts_first:OK
  #249     tc_opts_invalid:OK
  #250     tc_opts_last:OK
  #251     tc_opts_mixed:OK
  #252     tc_opts_prepend:OK
  #253     tc_opts_replace:OK
  #254     tc_opts_revision:OK
  Summary: 18/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Aug 3, 2023
@sudeep-holla @oupton
KVM: arm64: Handle kvm_arm_init failure correctly in finalize_pkvm
fa729bc 
Currently there is no synchronisation between finalize_pkvm() and
kvm_arm_init() initcalls. The finalize_pkvm() proceeds happily even if
kvm_arm_init() fails resulting in the following warning on all the CPUs
and eventually a HYP panic:

  | kvm [1]: IPA Size Limit: 48 bits
  | kvm [1]: Failed to init hyp memory protection
  | kvm [1]: error initializing Hyp mode: -22
  |
  | <snip>
  |
  | WARNING: CPU: 0 PID: 0 at arch/arm64/kvm/pkvm.c:226 _kvm_host_prot_finalize+0x30/0x50
  | Modules linked in:
  | CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.4.0 #237
  | Hardware name: FVP Base RevC (DT)
  | pstate: 634020c5 (nZCv daIF +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
  | pc : _kvm_host_prot_finalize+0x30/0x50
  | lr : __flush_smp_call_function_queue+0xd8/0x230
  |
  | Call trace:
  |  _kvm_host_prot_finalize+0x3c/0x50
  |  on_each_cpu_cond_mask+0x3c/0x6c
  |  pkvm_drop_host_privileges+0x4c/0x78
  |  finalize_pkvm+0x3c/0x5c
  |  do_one_initcall+0xcc/0x240
  |  do_initcall_level+0x8c/0xac
  |  do_initcalls+0x54/0x94
  |  do_basic_setup+0x1c/0x28
  |  kernel_init_freeable+0x100/0x16c
  |  kernel_init+0x20/0x1a0
  |  ret_from_fork+0x10/0x20
  | Failed to finalize Hyp protection: -22
  |     dtb=fvp-base-revc.dtb
  | kvm [95]: nVHE hyp BUG at: arch/arm64/kvm/hyp/nvhe/mem_protect.c:540!
  | kvm [95]: nVHE call trace:
  | kvm [95]:  [<ffff800081052984>] __kvm_nvhe_hyp_panic+0xac/0xf8
  | kvm [95]:  [<ffff800081059644>] __kvm_nvhe_handle_host_mem_abort+0x1a0/0x2ac
  | kvm [95]:  [<ffff80008105511c>] __kvm_nvhe_handle_trap+0x4c/0x160
  | kvm [95]:  [<ffff8000810540fc>] __kvm_nvhe___skip_pauth_save+0x4/0x4
  | kvm [95]: ---[ end nVHE call trace ]---
  | kvm [95]: Hyp Offset: 0xfffe8db00ffa0000
  | Kernel panic - not syncing: HYP panic:
  | PS:a34023c9 PC:0000f250710b973c ESR:00000000f2000800
  | FAR:ffff000800cb00d0 HPFAR:000000000880cb00 PAR:0000000000000000
  | VCPU:0000000000000000
  | CPU: 3 PID: 95 Comm: kworker/u16:2 Tainted: G        W          6.4.0 #237
  | Hardware name: FVP Base RevC (DT)
  | Workqueue: rpciod rpc_async_schedule
  | Call trace:
  |  dump_backtrace+0xec/0x108
  |  show_stack+0x18/0x2c
  |  dump_stack_lvl+0x50/0x68
  |  dump_stack+0x18/0x24
  |  panic+0x138/0x33c
  |  nvhe_hyp_panic_handler+0x100/0x184
  |  new_slab+0x23c/0x54c
  |  ___slab_alloc+0x3e4/0x770
  |  kmem_cache_alloc_node+0x1f0/0x278
  |  __alloc_skb+0xdc/0x294
  |  tcp_stream_alloc_skb+0x2c/0xf0
  |  tcp_sendmsg_locked+0x3d0/0xda4
  |  tcp_sendmsg+0x38/0x5c
  |  inet_sendmsg+0x44/0x60
  |  sock_sendmsg+0x1c/0x34
  |  xprt_sock_sendmsg+0xdc/0x274
  |  xs_tcp_send_request+0x1ac/0x28c
  |  xprt_transmit+0xcc/0x300
  |  call_transmit+0x78/0x90
  |  __rpc_execute+0x114/0x3d8
  |  rpc_async_schedule+0x28/0x48
  |  process_one_work+0x1d8/0x314
  |  worker_thread+0x248/0x474
  |  kthread+0xfc/0x184
  |  ret_from_fork+0x10/0x20
  | SMP: stopping secondary CPUs
  | Kernel Offset: 0x57c5cb460000 from 0xffff800080000000
  | PHYS_OFFSET: 0x80000000
  | CPU features: 0x00000000,1035b7a3,ccfe773f
  | Memory Limit: none
  | ---[ end Kernel panic - not syncing: HYP panic:
  | PS:a34023c9 PC:0000f250710b973c ESR:00000000f2000800
  | FAR:ffff000800cb00d0 HPFAR:000000000880cb00 PAR:0000000000000000
  | VCPU:0000000000000000 ]---

Fix it by checking for the successfull initialisation of kvm_arm_init()
in finalize_pkvm() before proceeding any futher.

Fixes: 87727ba ("KVM: arm64: Ensure CPU PMU probes before pKVM host de-privilege")
Cc: Will Deacon <[email protected]>
Cc: Marc Zyngier <[email protected]>
Cc: Oliver Upton <[email protected]>
Cc: James Morse <[email protected]>
Cc: Suzuki K Poulose <[email protected]>
Cc: Zenghui Yu <[email protected]>
Signed-off-by: Sudeep Holla <[email protected]>
Acked-by: Marc Zyngier <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Oliver Upton <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Aug 14, 2023
@borkmann
selftests/bpf: Add various more tcx test cases
74d3503 
Add several new tcx test cases to improve test coverage. This also includes
a few new tests with ingress instead of clsact qdisc, to cover the fix from
commit dc644b5 ("tcx: Fix splat in ingress_destroy upon tcx_entry_free").

  # ./test_progs -t tc
  [...]
  #234     tc_links_after:OK
  #235     tc_links_append:OK
  #236     tc_links_basic:OK
  #237     tc_links_before:OK
  #238     tc_links_chain_classic:OK
  #239     tc_links_chain_mixed:OK
  #240     tc_links_dev_cleanup:OK
  #241     tc_links_dev_mixed:OK
  #242     tc_links_ingress:OK
  #243     tc_links_invalid:OK
  #244     tc_links_prepend:OK
  #245     tc_links_replace:OK
  #246     tc_links_revision:OK
  #247     tc_opts_after:OK
  #248     tc_opts_append:OK
  #249     tc_opts_basic:OK
  #250     tc_opts_before:OK
  #251     tc_opts_chain_classic:OK
  #252     tc_opts_chain_mixed:OK
  #253     tc_opts_delete_empty:OK
  #254     tc_opts_demixed:OK
  #255     tc_opts_detach:OK
  #256     tc_opts_detach_after:OK
  #257     tc_opts_detach_before:OK
  #258     tc_opts_dev_cleanup:OK
  #259     tc_opts_invalid:OK
  #260     tc_opts_mixed:OK
  #261     tc_opts_prepend:OK
  #262     tc_opts_replace:OK
  #263     tc_opts_revision:OK
  [...]
  Summary: 44/38 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Aug 14, 2023
@borkmann
selftests/bpf: Add various more tcx test cases
7d793c6 
Add several new tcx test cases to improve test coverage. This also includes
a few new tests with ingress instead of clsact qdisc, to cover the fix from
commit dc644b5 ("tcx: Fix splat in ingress_destroy upon tcx_entry_free").

  # ./test_progs -t tc
  [...]
  #234     tc_links_after:OK
  #235     tc_links_append:OK
  #236     tc_links_basic:OK
  #237     tc_links_before:OK
  #238     tc_links_chain_classic:OK
  #239     tc_links_chain_mixed:OK
  #240     tc_links_dev_cleanup:OK
  #241     tc_links_dev_mixed:OK
  #242     tc_links_ingress:OK
  #243     tc_links_invalid:OK
  #244     tc_links_prepend:OK
  #245     tc_links_replace:OK
  #246     tc_links_revision:OK
  #247     tc_opts_after:OK
  #248     tc_opts_append:OK
  #249     tc_opts_basic:OK
  #250     tc_opts_before:OK
  #251     tc_opts_chain_classic:OK
  #252     tc_opts_chain_mixed:OK
  #253     tc_opts_delete_empty:OK
  #254     tc_opts_demixed:OK
  #255     tc_opts_detach:OK
  #256     tc_opts_detach_after:OK
  #257     tc_opts_detach_before:OK
  #258     tc_opts_dev_cleanup:OK
  #259     tc_opts_invalid:OK
  #260     tc_opts_mixed:OK
  #261     tc_opts_prepend:OK
  #262     tc_opts_replace:OK
  #263     tc_opts_revision:OK
  [...]
  Summary: 44/38 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Aug 15, 2023
@borkmann
selftests/bpf: Add various more tcx test cases
ccd9a8b 
Add several new tcx test cases to improve test coverage. This also includes
a few new tests with ingress instead of clsact qdisc, to cover the fix from
commit dc644b5 ("tcx: Fix splat in ingress_destroy upon tcx_entry_free").

  # ./test_progs -t tc
  [...]
  #234     tc_links_after:OK
  #235     tc_links_append:OK
  #236     tc_links_basic:OK
  #237     tc_links_before:OK
  #238     tc_links_chain_classic:OK
  #239     tc_links_chain_mixed:OK
  #240     tc_links_dev_cleanup:OK
  #241     tc_links_dev_mixed:OK
  #242     tc_links_ingress:OK
  #243     tc_links_invalid:OK
  #244     tc_links_prepend:OK
  #245     tc_links_replace:OK
  #246     tc_links_revision:OK
  #247     tc_opts_after:OK
  #248     tc_opts_append:OK
  #249     tc_opts_basic:OK
  #250     tc_opts_before:OK
  #251     tc_opts_chain_classic:OK
  #252     tc_opts_chain_mixed:OK
  #253     tc_opts_delete_empty:OK
  #254     tc_opts_demixed:OK
  #255     tc_opts_detach:OK
  #256     tc_opts_detach_after:OK
  #257     tc_opts_detach_before:OK
  #258     tc_opts_dev_cleanup:OK
  #259     tc_opts_invalid:OK
  #260     tc_opts_mixed:OK
  #261     tc_opts_prepend:OK
  #262     tc_opts_replace:OK
  #263     tc_opts_revision:OK
  [...]
  Summary: 44/38 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <[email protected]>
Link: https://lore.kernel.org/r/8699efc284b75ccdc51ddf7062fa2370330dc6c0.1692029283.git.daniel@iogearbox.net
Signed-off-by: Martin KaFai Lau <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Oct 5, 2023
@laoar
selftests/bpf: Add selftest for sleepable bpf_task_under_cgroup()
2fbc28c 
The result as follows,

  $ tools/testing/selftests/bpf/test_progs --name=task_under_cgroup
  #237     task_under_cgroup:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

And no error messages in dmesg.

Without the prev patch, there will be RCU warnings in dmesg.

Signed-off-by: Yafang Shao <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Oct 5, 2023
@laoar
selftests/bpf: Add selftest for sleepable bpf_task_under_cgroup()
5f051fb 
The result as follows,

  $ tools/testing/selftests/bpf/test_progs --name=task_under_cgroup
  #237     task_under_cgroup:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

And no error messages in dmesg.

Without the prev patch, there will be RCU warnings in dmesg.

Signed-off-by: Yafang Shao <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Oct 5, 2023
@laoar
selftests/bpf: Add selftest for sleepable bpf_task_under_cgroup()
efc04b1 
The result as follows,

  $ tools/testing/selftests/bpf/test_progs --name=task_under_cgroup
  #237     task_under_cgroup:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

And no error messages in dmesg.

Without the prev patch, there will be RCU warnings in dmesg.

Signed-off-by: Yafang Shao <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Oct 6, 2023
@laoar
selftests/bpf: Add selftest for sleepable bpf_task_under_cgroup()
20d2e07 
The result as follows,

  $ tools/testing/selftests/bpf/test_progs --name=task_under_cgroup
  #237     task_under_cgroup:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

And no error messages in dmesg.

Without the prev patch, there will be RCU warnings in dmesg.

Signed-off-by: Yafang Shao <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Oct 6, 2023
@laoar
selftests/bpf: Add selftest for sleepable bpf_task_under_cgroup()
32268a5 
The result as follows,

  $ tools/testing/selftests/bpf/test_progs --name=task_under_cgroup
  #237     task_under_cgroup:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

And no error messages in dmesg.

Without the prev patch, there will be RCU warnings in dmesg.

Signed-off-by: Yafang Shao <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Oct 6, 2023
@laoar
selftests/bpf: Add selftest for sleepable bpf_task_under_cgroup()
e7e6f51 
The result as follows,

  $ tools/testing/selftests/bpf/test_progs --name=task_under_cgroup
  #237     task_under_cgroup:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

And no error messages in dmesg.

Without the prev patch, there will be RCU warnings in dmesg.

Signed-off-by: Yafang Shao <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Oct 6, 2023
@laoar
selftests/bpf: Add selftest for sleepable bpf_task_under_cgroup()
477608c 
The result as follows,

  $ tools/testing/selftests/bpf/test_progs --name=task_under_cgroup
  #237     task_under_cgroup:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

And no error messages in dmesg.

Without the prev patch, there will be RCU warnings in dmesg.

Signed-off-by: Yafang Shao <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Oct 7, 2023
@laoar
selftests/bpf: Add selftest for bpf_task_under_cgroup() in sleepable …
128a89f 
…prog

The result as follows,

  $ tools/testing/selftests/bpf/test_progs --name=task_under_cgroup
  #237     task_under_cgroup:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

Without the prev patch, there will be RCU warnings in dmesg when
CONFIG_PROVE_RCU is enabled. While with prev patch, there will be no
warnings.

Signed-off-by: Yafang Shao <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Oct 9, 2023
@laoar
selftests/bpf: Add selftest for bpf_task_under_cgroup() in sleepable …
88c58ae 
…prog

The result as follows,

  $ tools/testing/selftests/bpf/test_progs --name=task_under_cgroup
  #237     task_under_cgroup:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

Without the prev patch, there will be RCU warnings in dmesg when
CONFIG_PROVE_RCU is enabled. While with prev patch, there will be no
warnings.

Signed-off-by: Yafang Shao <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Oct 9, 2023
@laoar
selftests/bpf: Add selftest for bpf_task_under_cgroup() in sleepable …
df3c976 
…prog

The result as follows,

  $ tools/testing/selftests/bpf/test_progs --name=task_under_cgroup
  #237     task_under_cgroup:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

Without the prev patch, there will be RCU warnings in dmesg when
CONFIG_PROVE_RCU is enabled. While with prev patch, there will be no
warnings.

Signed-off-by: Yafang Shao <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Oct 9, 2023
@laoar
selftests/bpf: Add selftest for bpf_task_under_cgroup() in sleepable …
31636b6 
…prog

The result as follows,

  $ tools/testing/selftests/bpf/test_progs --name=task_under_cgroup
  #237     task_under_cgroup:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

Without the prev patch, there will be RCU warnings in dmesg when
CONFIG_PROVE_RCU is enabled. While with prev patch, there will be no
warnings.

Signed-off-by: Yafang Shao <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Oct 11, 2023
@laoar
selftests/bpf: Add selftest for bpf_task_under_cgroup() in sleepable …
ba434c1 
…prog

The result as follows,

  $ tools/testing/selftests/bpf/test_progs --name=task_under_cgroup
  #237     task_under_cgroup:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

Without the prev patch, there will be RCU warnings in dmesg when
CONFIG_PROVE_RCU is enabled. While with prev patch, there will be no
warnings.

Signed-off-by: Yafang Shao <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Oct 12, 2023
@laoar
selftests/bpf: Add selftest for bpf_task_under_cgroup() in sleepable …
956b11a 
…prog

The result as follows,

  $ tools/testing/selftests/bpf/test_progs --name=task_under_cgroup
  #237     task_under_cgroup:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

Without the prev patch, there will be RCU warnings in dmesg when
CONFIG_PROVE_RCU is enabled. While with prev patch, there will be no
warnings.

Signed-off-by: Yafang Shao <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Oct 13, 2023
@laoar
selftests/bpf: Add selftest for bpf_task_under_cgroup() in sleepable …
30d62f1 
…prog

The result as follows,

  $ tools/testing/selftests/bpf/test_progs --name=task_under_cgroup
  #237     task_under_cgroup:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

Without the prev patch, there will be RCU warnings in dmesg when
CONFIG_PROVE_RCU is enabled. While with prev patch, there will be no
warnings.

Signed-off-by: Yafang Shao <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Oct 13, 2023
@laoar
selftests/bpf: Add selftest for bpf_task_under_cgroup() in sleepable …
8323fc1 
…prog

The result as follows,

  $ tools/testing/selftests/bpf/test_progs --name=task_under_cgroup
  #237     task_under_cgroup:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

Without the prev patch, there will be RCU warnings in dmesg when
CONFIG_PROVE_RCU is enabled. While with prev patch, there will be no
warnings.

Signed-off-by: Yafang Shao <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Oct 13, 2023
@laoar
selftests/bpf: Add selftest for bpf_task_under_cgroup() in sleepable …
ecd95a3 
…prog

The result as follows,

  $ tools/testing/selftests/bpf/test_progs --name=task_under_cgroup
  #237     task_under_cgroup:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

Without the prev patch, there will be RCU warnings in dmesg when
CONFIG_PROVE_RCU is enabled. While with prev patch, there will be no
warnings.

Signed-off-by: Yafang Shao <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Oct 13, 2023
@laoar
selftests/bpf: Add selftest for bpf_task_under_cgroup() in sleepable …
4df92fc 
…prog

The result as follows,

  $ tools/testing/selftests/bpf/test_progs --name=task_under_cgroup
  #237     task_under_cgroup:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

Without the prev patch, there will be RCU warnings in dmesg when
CONFIG_PROVE_RCU is enabled. While with prev patch, there will be no
warnings.

Signed-off-by: Yafang Shao <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Oct 16, 2023
@laoar
selftests/bpf: Add selftest for bpf_task_under_cgroup() in sleepable …
cf6e9fa 
…prog

The result as follows,

  $ tools/testing/selftests/bpf/test_progs --name=task_under_cgroup
  #237     task_under_cgroup:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

Without the prev patch, there will be RCU warnings in dmesg when
CONFIG_PROVE_RCU is enabled. While with prev patch, there will be no
warnings.

Signed-off-by: Yafang Shao <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Oct 17, 2023
@laoar
selftests/bpf: Add selftest for bpf_task_under_cgroup() in sleepable …
dedad56 
…prog

The result as follows,

  $ tools/testing/selftests/bpf/test_progs --name=task_under_cgroup
  #237     task_under_cgroup:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

Without the prev patch, there will be RCU warnings in dmesg when
CONFIG_PROVE_RCU is enabled. While with prev patch, there will be no
warnings.

Signed-off-by: Yafang Shao <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Oct 17, 2023
@laoar
selftests/bpf: Add selftest for bpf_task_under_cgroup() in sleepable …
68c3641 
…prog

The result as follows,

  $ tools/testing/selftests/bpf/test_progs --name=task_under_cgroup
  #237     task_under_cgroup:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

Without the prev patch, there will be RCU warnings in dmesg when
CONFIG_PROVE_RCU is enabled. While with prev patch, there will be no
warnings.

Signed-off-by: Yafang Shao <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Oct 17, 2023
@laoar
selftests/bpf: Add selftest for bpf_task_under_cgroup() in sleepable …
09de666 
…prog

The result as follows,

  $ tools/testing/selftests/bpf/test_progs --name=task_under_cgroup
  #237     task_under_cgroup:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

Without the prev patch, there will be RCU warnings in dmesg when
CONFIG_PROVE_RCU is enabled. While with prev patch, there will be no
warnings.

Signed-off-by: Yafang Shao <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
kernel-patches-daemon-bpf-rc bot pushed a commit that referenced this pull request Oct 17, 2023
@laoar @borkmann
selftests/bpf: Add selftest for bpf_task_under_cgroup() in sleepable …
44cb03f 
…prog

The result is as follows:

  $ tools/testing/selftests/bpf/test_progs --name=task_under_cgroup
  #237     task_under_cgroup:OK
  Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED

Without the previous patch, there will be RCU warnings in dmesg when
CONFIG_PROVE_RCU is enabled. While with the previous patch, there will
be no warnings.

Signed-off-by: Yafang Shao <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
Acked-by: Stanislav Fomichev <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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@kernel-patches-bot @liu-song-6