libefi: remove efi_auto_sense()

It's present (but undocumented) in the illumos gate and used exclusively by rmformat(1) (which I recommend as a nice blast from the past), and also the math assumes 512B sectors and is therefore wrong Reviewed-by: Matthew Ahrens <[email protected]> Reviewed-by: John Kennedy <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Ahelenia Ziemiańska <[email protected]> Closes openzfs#12191
tonyhutter · Nov 12, 2021 · 998b27c · 998b27c
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Showing 3 changed files with 3,100 additions and 1,923 deletions.
diff --git a/include/sys/efi_partition.h b/include/sys/efi_partition.h
@@ -370,7 +370,6 @@ extern	int	efi_rescan(int);
 extern	void	efi_free(struct dk_gpt *);
 extern	int	efi_type(int);
 extern	void	efi_err_check(struct dk_gpt *);
-extern	int	efi_auto_sense(int fd, struct dk_gpt **);
 extern	int	efi_use_whole_disk(int fd);
 #endif
 

diff --git a/lib/libefi/rdwr_efi.c b/lib/libefi/rdwr_efi.c
@@ -1692,57 +1692,3 @@ efi_err_check(struct dk_gpt *vtoc)
 		    "no reserved partition found\n");
 	}
 }
-
-/*
- * We need to get information necessary to construct a *new* efi
- * label type
- */
-int
-efi_auto_sense(int fd, struct dk_gpt **vtoc)
-{
-
-	int	i;
-
-	/*
-	 * Now build the default partition table
-	 */
-	if (efi_alloc_and_init(fd, EFI_NUMPAR, vtoc) != 0) {
-		if (efi_debug) {
-			(void) fprintf(stderr, "efi_alloc_and_init failed.\n");
-		}
-		return (-1);
-	}
-
-	for (i = 0; i < MIN((*vtoc)->efi_nparts, V_NUMPAR); i++) {
-		(*vtoc)->efi_parts[i].p_tag = default_vtoc_map[i].p_tag;
-		(*vtoc)->efi_parts[i].p_flag = default_vtoc_map[i].p_flag;
-		(*vtoc)->efi_parts[i].p_start = 0;
-		(*vtoc)->efi_parts[i].p_size = 0;
-	}
-	/*
-	 * Make constants first
-	 * and variable partitions later
-	 */
-
-	/* root partition - s0 128 MB */
-	(*vtoc)->efi_parts[0].p_start = 34;
-	(*vtoc)->efi_parts[0].p_size = 262144;
-
-	/* partition - s1  128 MB */
-	(*vtoc)->efi_parts[1].p_start = 262178;
-	(*vtoc)->efi_parts[1].p_size = 262144;
-
-	/* partition -s2 is NOT the Backup disk */
-	(*vtoc)->efi_parts[2].p_tag = V_UNASSIGNED;
-
-	/* partition -s6 /usr partition - HOG */
-	(*vtoc)->efi_parts[6].p_start = 524322;
-	(*vtoc)->efi_parts[6].p_size = (*vtoc)->efi_last_u_lba - 524322
-	    - (1024 * 16);
-
-	/* efi reserved partition - s9 16K */
-	(*vtoc)->efi_parts[8].p_start = (*vtoc)->efi_last_u_lba - (1024 * 16);
-	(*vtoc)->efi_parts[8].p_size = (1024 * 16);
-	(*vtoc)->efi_parts[8].p_tag = V_RESERVED;
-	return (0);
-}