linux-kernel - [PATCH] scsi: qedi: remove declaration of nvm

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 27 Mar 2019 18:11:03 +0000
From:   Colin King <colin.king@...onical.com>
To:     QLogic-Storage-Upstream@...ium.com,
        "James E . J . Bottomley" <jejb@...ux.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] scsi: qedi: remove declaration of nvm_image from stack

From: Colin Ian King <colin.king@...onical.com>

The nvm_image is a large struct qedi_nvm_iscsi_image object of
over 24K so don't declare it on the stack just for a sizeof
requirement; use sizeof on struct qedi_nvm_iscsi_image instead.

Fixes: c77a2fa3ff8f ("scsi: qedi: Add the CRC size within iSCSI NVM image")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/scsi/qedi/qedi_main.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c
index e74a62448ba4..e5db9a9954dc 100644
--- a/drivers/scsi/qedi/qedi_main.c
+++ b/drivers/scsi/qedi/qedi_main.c
@@ -1392,10 +1392,8 @@ static void qedi_free_nvm_iscsi_cfg(struct qedi_ctx *qedi)
 
 static int qedi_alloc_nvm_iscsi_cfg(struct qedi_ctx *qedi)
 {
-	struct qedi_nvm_iscsi_image nvm_image;
-
 	qedi->iscsi_image = dma_alloc_coherent(&qedi->pdev->dev,
-					       sizeof(nvm_image),
+					       sizeof(struct qedi_nvm_iscsi_image),
 					       &qedi->nvm_buf_dma, GFP_KERNEL);
 	if (!qedi->iscsi_image) {
 		QEDI_ERR(&qedi->dbg_ctx, "Could not allocate NVM BUF.\n");
@@ -2236,14 +2234,13 @@ static void qedi_boot_release(void *data)
 static int qedi_get_boot_info(struct qedi_ctx *qedi)
 {
 	int ret = 1;
-	struct qedi_nvm_iscsi_image nvm_image;
 
 	QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
 		  "Get NVM iSCSI CFG image\n");
 	ret = qedi_ops->common->nvm_get_image(qedi->cdev,
 					      QED_NVM_IMAGE_ISCSI_CFG,
 					      (char *)qedi->iscsi_image,
-					      sizeof(nvm_image));
+					      sizeof(struct qedi_nvm_iscsi_image));
 	if (ret)
 		QEDI_ERR(&qedi->dbg_ctx,
 			 "Could not get NVM image. ret = %d\n", ret);
-- 
2.20.1