MIPS: ip22: Fix ip28 build for modern gcc

kernelci reports a failure of the ip28_defconfig build after upgrading its gcc version: arch/mips/sgi-ip22/Platform:29: *** gcc doesn't support needed option -mr10k-cache-barrier=store. Stop. The problem apparently is that the -mr10k-cache-barrier=store option is now rejected for CPUs other than r10k. Explicitly including the CPU in the check fixes this and is safe because both options were introduced in gcc-4.4. Signed-off-by: Arnd Bergmann <[email protected]> Cc: [email protected] Cc: [email protected] Patchwork: https://patchwork.linux-mips.org/patch/15049/ Signed-off-by: Ralf Baechle <[email protected]>
redbrain17 · Jan 25, 2017 · 23ca9b5 · 23ca9b5
1 parent e9663b1
commit 23ca9b5
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/arch/mips/sgi-ip22/Platform b/arch/mips/sgi-ip22/Platform
@@ -25,7 +25,7 @@ endif
 # Simplified: what IP22 does at 128MB+ in ksegN, IP28 does at 512MB+ in xkphys
 #
 ifdef CONFIG_SGI_IP28
-  ifeq ($(call cc-option-yn,-mr10k-cache-barrier=store), n)
+  ifeq ($(call cc-option-yn,-march=r10000 -mr10k-cache-barrier=store), n)
       $(error gcc doesn't support needed option -mr10k-cache-barrier=store)
   endif
 endif