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authorDan Carpenter <dan.carpenter@oracle.com>2021-09-16 16:23:31 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-09-30 11:11:04 +0300
commit0595fc4794c3b0ac9c88d7c609d66c71ba9811b5 (patch)
treee0196d548021d46252350676c0e3f0009799d29f /drivers/scsi
parentcb948b158a868a5c46b40e95ffafecf1eb82b589 (diff)
downloadlinux-0595fc4794c3b0ac9c88d7c609d66c71ba9811b5.tar.xz
scsi: lpfc: Use correct scnprintf() limit
[ Upstream commit 6dacc371b77f473770ec646e220303a84fe96c11 ] The limit should be "PAGE_SIZE - len" instead of "PAGE_SIZE". We're not going to hit the limit so this fix will not affect runtime. Link: https://lore.kernel.org/r/20210916132331.GE25094@kili Fixes: 5b9e70b22cc5 ("scsi: lpfc: raise sg count for nvme to use available sg resources") Reviewed-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/lpfc/lpfc_attr.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index bdea2867516c..2c59a5bf3539 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -6005,7 +6005,8 @@ lpfc_sg_seg_cnt_show(struct device *dev, struct device_attribute *attr,
len = scnprintf(buf, PAGE_SIZE, "SGL sz: %d total SGEs: %d\n",
phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt);
- len += scnprintf(buf + len, PAGE_SIZE, "Cfg: %d SCSI: %d NVME: %d\n",
+ len += scnprintf(buf + len, PAGE_SIZE - len,
+ "Cfg: %d SCSI: %d NVME: %d\n",
phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt,
phba->cfg_nvme_seg_cnt);
return len;