Patch "scsi: lpfc: Use correct scnprintf() limit" has been added to the 5.10-stable tree

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This is a note to let you know that I've just added the patch titled

    scsi: lpfc: Use correct scnprintf() limit

to the 5.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     scsi-lpfc-use-correct-scnprintf-limit.patch
and it can be found in the queue-5.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit e5bfc9df5722bc3bcf3d8224da3f7e39ee7acd97
Author: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Date:   Thu Sep 16 16:23:31 2021 +0300

    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@xxxxxxxxx>
    Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
    Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

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;



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