scsi: lpfc: Fix gcc -Wstringop-overread warning
gcc-11 warns about an strnlen with a length larger than the size of the passed buffer: drivers/scsi/lpfc/lpfc_attr.c: In function 'lpfc_nvme_info_show': drivers/scsi/lpfc/lpfc_attr.c:518:25: error: 'strnlen' specified bound 4095 exceeds source size 24 [-Werror=stringop-overread] 518 | strnlen(LPFC_NVME_INFO_MORE_STR, PAGE_SIZE - 1) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In this case, the code is entirely valid, as the string is properly terminated, and the size argument is only there out of extra caution in case it exceeds a page. This cannot really happen here, so just simplify it to a sizeof(). Link: https://lore.kernel.org/r/20210322160253.4032422-10-arnd@kernel.org Fixes: afff0d23 ("scsi: lpfc: Add Buffer overflow check, when nvme_info larger than PAGE_SIZE") Signed-off-by:Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
parent
ae3645d2
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