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authorSherry Yang <sherry.yang@oracle.com>2024-08-21 08:51:31 +0200
committerMartin K. Petersen <martin.petersen@oracle.com>2024-08-23 02:57:41 +0200
commit3417c9574e368f0330637505f00d3814ca8854d2 (patch)
tree929d20ccb945abadb35fafed9cf7b5184419a920 /drivers/scsi
parentscsi: sd: Do not attempt to configure discard unless LBPME is set (diff)
downloadlinux-3417c9574e368f0330637505f00d3814ca8854d2.tar.xz
linux-3417c9574e368f0330637505f00d3814ca8854d2.zip
scsi: lpfc: Fix overflow build issue
Build failed while enabling "CONFIG_GCOV_KERNEL=y" and "CONFIG_GCOV_PROFILE_ALL=y" with following error: BUILDSTDERR: drivers/scsi/lpfc/lpfc_bsg.c: In function 'lpfc_get_cgnbuf_info': BUILDSTDERR: ./include/linux/fortify-string.h:114:33: error: '__builtin_memcpy' accessing 18446744073709551615 bytes at offsets 0 and 0 overlaps 9223372036854775807 bytes at offset -9223372036854775808 [-Werror=restrict] BUILDSTDERR: 114 | #define __underlying_memcpy __builtin_memcpy BUILDSTDERR: | ^ BUILDSTDERR: ./include/linux/fortify-string.h:637:9: note: in expansion of macro '__underlying_memcpy' BUILDSTDERR: 637 | __underlying_##op(p, q, __fortify_size); \ BUILDSTDERR: | ^~~~~~~~~~~~~ BUILDSTDERR: ./include/linux/fortify-string.h:682:26: note: in expansion of macro '__fortify_memcpy_chk' BUILDSTDERR: 682 | #define memcpy(p, q, s) __fortify_memcpy_chk(p, q, s, \ BUILDSTDERR: | ^~~~~~~~~~~~~~~~~~~~ BUILDSTDERR: drivers/scsi/lpfc/lpfc_bsg.c:5468:9: note: in expansion of macro 'memcpy' BUILDSTDERR: 5468 | memcpy(cgn_buff, cp, cinfosz); BUILDSTDERR: | ^~~~~~ This happens from the commit 06bb7fc0feee ("kbuild: turn on -Wrestrict by default"). Address this issue by using size_t type. Signed-off-by: Sherry Yang <sherry.yang@oracle.com> Link: https://lore.kernel.org/r/20240821065131.1180791-1-sherry.yang@oracle.com Reviewed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/lpfc/lpfc_bsg.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/lpfc/lpfc_bsg.c b/drivers/scsi/lpfc/lpfc_bsg.c
index 4156419c52c7..4756a3f82531 100644
--- a/drivers/scsi/lpfc/lpfc_bsg.c
+++ b/drivers/scsi/lpfc/lpfc_bsg.c
@@ -5410,7 +5410,7 @@ lpfc_get_cgnbuf_info(struct bsg_job *job)
struct get_cgnbuf_info_req *cgnbuf_req;
struct lpfc_cgn_info *cp;
uint8_t *cgn_buff;
- int size, cinfosz;
+ size_t size, cinfosz;
int rc = 0;
if (job->request_len < sizeof(struct fc_bsg_request) +