Patch "qed: avoid truncating work queue length" has been added to the 5.15-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

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

    qed: avoid truncating work queue length

to the 5.15-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:
     qed-avoid-truncating-work-queue-length.patch
and it can be found in the queue-5.15 subdirectory.

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



commit 1556b9cd62a459db8f2f85f75f0b0303bb52924f
Author: Arnd Bergmann <arnd@xxxxxxxx>
Date:   Tue Mar 26 23:38:02 2024 +0100

    qed: avoid truncating work queue length
    
    [ Upstream commit 954fd908f177604d4cce77e2a88cc50b29bad5ff ]
    
    clang complains that the temporary string for the name passed into
    alloc_workqueue() is too short for its contents:
    
    drivers/net/ethernet/qlogic/qed/qed_main.c:1218:3: error: 'snprintf' will always be truncated; specified size is 16, but format string expands to at least 18 [-Werror,-Wformat-truncation]
    
    There is no need for a temporary buffer, and the actual name of a workqueue
    is 32 bytes (WQ_NAME_LEN), so just use the interface as intended to avoid
    the truncation.
    
    Fixes: 59ccf86fe69a ("qed: Add driver infrastucture for handling mfw requests.")
    Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
    Link: https://lore.kernel.org/r/20240326223825.4084412-4-arnd@xxxxxxxxxx
    Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/net/ethernet/qlogic/qed/qed_main.c b/drivers/net/ethernet/qlogic/qed/qed_main.c
index 6e902d57c793c..99a6d11fec62c 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_main.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_main.c
@@ -1238,7 +1238,6 @@ static void qed_slowpath_task(struct work_struct *work)
 static int qed_slowpath_wq_start(struct qed_dev *cdev)
 {
 	struct qed_hwfn *hwfn;
-	char name[NAME_SIZE];
 	int i;
 
 	if (IS_VF(cdev))
@@ -1247,11 +1246,11 @@ static int qed_slowpath_wq_start(struct qed_dev *cdev)
 	for_each_hwfn(cdev, i) {
 		hwfn = &cdev->hwfns[i];
 
-		snprintf(name, NAME_SIZE, "slowpath-%02x:%02x.%02x",
-			 cdev->pdev->bus->number,
-			 PCI_SLOT(cdev->pdev->devfn), hwfn->abs_pf_id);
+		hwfn->slowpath_wq = alloc_workqueue("slowpath-%02x:%02x.%02x",
+					 0, 0, cdev->pdev->bus->number,
+					 PCI_SLOT(cdev->pdev->devfn),
+					 hwfn->abs_pf_id);
 
-		hwfn->slowpath_wq = alloc_workqueue(name, 0, 0);
 		if (!hwfn->slowpath_wq) {
 			DP_NOTICE(hwfn, "Cannot create slowpath workqueue\n");
 			return -ENOMEM;