linux-kernel - [PATCH] qla2xxx: fix printk format string

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Message-Id: <20230117170029.2387516-1-arnd@kernel.org>
Date:   Tue, 17 Jan 2023 18:00:15 +0100
From:   Arnd Bergmann <arnd@...nel.org>
To:     Nilesh Javali <njavali@...vell.com>,
        GR-QLogic-Storage-Upstream@...vell.com,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Himanshu Madhani <himanshu.madhani@...cle.com>,
        Quinn Tran <qutran@...vell.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Saurav Kashyap <skashyap@...vell.com>,
        Tom Rix <trix@...hat.com>, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] qla2xxx: fix printk format string

From: Arnd Bergmann <arnd@...db.de>

Printing a size_t value that is the result of the sizeof() operator requires
using the %z format string modifier to avoid a warning on 32-bit architectures:

drivers/scsi/qla2xxx/qla_mid.c: In function 'qla_create_buf_pool':
drivers/scsi/qla2xxx/qla_mid.c:1094:51: error: format '%ld' expects argument of type 'long int', but argument 5 has type 'unsigned int' [-Werror=format=]
 1094 |                     "Failed to allocate buf_map(%ld).\n", sz * sizeof(unsigned long));
      |                                                 ~~^       ~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                                                   |          |
      |                                                   long int   unsigned int
      |                                                 %d

Fixes: 82d8dfd2a238 ("scsi: qla2xxx: edif: Fix performance dip due to lock contention")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/scsi/qla2xxx/qla_mid.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c
index c6ca39b8e23d..1483f6258f92 100644
--- a/drivers/scsi/qla2xxx/qla_mid.c
+++ b/drivers/scsi/qla2xxx/qla_mid.c
@@ -1091,7 +1091,7 @@ int qla_create_buf_pool(struct scsi_qla_host *vha, struct qla_qpair *qp)
 	qp->buf_pool.buf_map   = kcalloc(sz, sizeof(long), GFP_KERNEL);
 	if (!qp->buf_pool.buf_map) {
 		ql_log(ql_log_warn, vha, 0x0186,
-		    "Failed to allocate buf_map(%ld).\n", sz * sizeof(unsigned long));
+		    "Failed to allocate buf_map(%zd).\n", sz * sizeof(unsigned long));
 		return -ENOMEM;
 	}
 	sz = qp->req->length * sizeof(void *);
-- 
2.39.0