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Code Issues Releases Wiki Activity

scsi: aic79xx: Use __ro_after_init explicitly

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ahd_linux_setup_iocell_info() intentionally writes to the const-marked
aic79xx_iocell_info array, but is called during __init, so the location is
actually writable at this point on most architectures. Annotate this
explicitly with __ro_after_init to avoid static analysis confusion.

Link: https://lpc.events/event/16/contributions/1175/attachments/1109/2128/2022-LPC-analyzer-talk.pdf
Link: https://lore.kernel.org/r/20220914115953.3854029-1-keescook@chromium.org
Cc: Hannes Reinecke <hare@suse.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Reported-by: David Malcolm <dmalcolm@redhat.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Kees Cook 2022-09-14 04:59:53 -07:00 committed by Martin K. Petersen
parent 4663509304
commit 32e7e06f60
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/aic7xxx/aic79xx_osm.c
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@ -194,7 +194,7 @@ struct ahd_linux_iocell_opts
#define AIC79XX_PRECOMP_INDEX 0
#define AIC79XX_SLEWRATE_INDEX 1
#define AIC79XX_AMPLITUDE_INDEX 2
static const struct ahd_linux_iocell_opts aic79xx_iocell_info[] =
static struct ahd_linux_iocell_opts aic79xx_iocell_info[] __ro_after_init =
{
AIC79XX_DEFAULT_IOOPTS,
AIC79XX_DEFAULT_IOOPTS,