linux-kernel - [PATCH] mpi3mr: fix printk() format strings

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Date:   Thu,  7 Dec 2023 15:28:06 +0100
From:   Arnd Bergmann <arnd@...nel.org>
To:     Sathya Prakash Veerichetty <sathya.prakash@...adcom.com>,
        Kashyap Desai <kashyap.desai@...adcom.com>,
        Sumit Saxena <sumit.saxena@...adcom.com>,
        Sreekanth Reddy <sreekanth.reddy@...adcom.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Chandrakanth patil <chandrakanth.patil@...adcom.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Ranjan Kumar <ranjan.kumar@...adcom.com>,
        "Shin'ichiro Kawasaki" <shinichiro.kawasaki@....com>,
        mpi3mr-linuxdrv.pdl@...adcom.com, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] mpi3mr: fix printk() format strings

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

The newly introduced error messages get multiple format strings wrong: size_t must
be printed using the %z modifier rather than %l and dma_addr_t must be printed
by reference using the special %pad pointer type:

drivers/scsi/mpi3mr/mpi3mr_app.c: In function 'mpi3mr_build_nvme_prp':
include/linux/kern_levels.h:5:25: error: format '%llx' expects argument of type 'long long unsigned int', but argument 4 has type 'dma_addr_t' {aka 'unsigned int'} [-Werror=format=]
drivers/scsi/mpi3mr/mpi3mr_app.c:949:25: note: in expansion of macro 'dprint_bsg_err'
  949 |                         dprint_bsg_err(mrioc,
      |                         ^~~~~~~~~~~~~~
include/linux/kern_levels.h:5:25: error: format '%ld' expects argument of type 'long int', but argument 4 has type 'size_t' {aka 'unsigned int'} [-Werror=format=]
drivers/scsi/mpi3mr/mpi3mr_app.c:1112:41: note: in expansion of macro 'dprint_bsg_err'
 1112 |                                         dprint_bsg_err(mrioc,
      |                                         ^~~~~~~~~~~~~~

Fixes: 9536af615dc9 ("scsi: mpi3mr: Support for preallocation of SGL BSG data buffers part-3")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/scsi/mpi3mr/mpi3mr_app.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/mpi3mr/mpi3mr_app.c b/drivers/scsi/mpi3mr/mpi3mr_app.c
index 4b93b7440da6..0380996b5ad2 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_app.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_app.c
@@ -947,8 +947,8 @@ static int mpi3mr_build_nvme_prp(struct mpi3mr_ioc *mrioc,
 		dma_addr = drv_buf_iter->dma_desc[count].dma_addr;
 		if (dma_addr & page_mask) {
 			dprint_bsg_err(mrioc,
-				       "%s:dma_addr 0x%llx is not aligned with page size 0x%x\n",
-				       __func__,  dma_addr, dev_pgsz);
+				       "%s:dma_addr %pad is not aligned with page size 0x%x\n",
+				       __func__,  &dma_addr, dev_pgsz);
 			return -1;
 		}
 	}
@@ -1110,7 +1110,7 @@ static int mpi3mr_build_nvme_prp(struct mpi3mr_ioc *mrioc,
 				if ((++desc_count) >=
 				   drv_buf_iter->num_dma_desc) {
 					dprint_bsg_err(mrioc,
-						       "%s: Invalid len %ld while building PRP\n",
+						       "%s: Invalid len %zd while building PRP\n",
 						       __func__, length);
 					goto err_out;
 				}
-- 
2.39.2