netdev - [PATCH net-next 2/2] s390/net: sort out physical vs virtual pointers usage

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

Message-Id: <20220221145633.3869621-3-wintera@linux.ibm.com>
Date:   Mon, 21 Feb 2022 15:56:33 +0100
From:   Alexandra Winter <wintera@...ux.ibm.com>
To:     David Miller <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     netdev@...r.kernel.org, linux-s390@...r.kernel.org,
        Heiko Carstens <hca@...ux.ibm.com>, agordeev@...ux.ibm.com,
        Alexandra Winter <wintera@...ux.ibm.com>,
        Wenjia Zhang <wenjia@...ux.ibm.com>
Subject: [PATCH net-next 2/2] s390/net: sort out physical vs virtual pointers usage

From: Alexander Gordeev <agordeev@...ux.ibm.com>

Fix virtual vs physical address confusion (which currently are the same).

Reviewed-by: Alexandra Winter <wintera@...ux.ibm.com>
Reviewed-by: Wenjia Zhang <wenjia@...ux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@...ux.ibm.com>
Signed-off-by: Alexandra Winter <wintera@...ux.ibm.com>
---
 drivers/s390/net/lcs.c            | 8 ++++----
 drivers/s390/net/qeth_core_main.c | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c
index a61d38a1b4ed..bab9b34926c6 100644
--- a/drivers/s390/net/lcs.c
+++ b/drivers/s390/net/lcs.c
@@ -223,7 +223,7 @@ lcs_setup_read_ccws(struct lcs_card *card)
 		 * we do not need to do set_normalized_cda.
 		 */
 		card->read.ccws[cnt].cda =
-			(__u32) __pa(card->read.iob[cnt].data);
+			(__u32)virt_to_phys(card->read.iob[cnt].data);
 		((struct lcs_header *)
 		 card->read.iob[cnt].data)->offset = LCS_ILLEGAL_OFFSET;
 		card->read.iob[cnt].callback = lcs_get_frames_cb;
@@ -236,7 +236,7 @@ lcs_setup_read_ccws(struct lcs_card *card)
 	/* Last ccw is a tic (transfer in channel). */
 	card->read.ccws[LCS_NUM_BUFFS].cmd_code = LCS_CCW_TRANSFER;
 	card->read.ccws[LCS_NUM_BUFFS].cda =
-		(__u32) __pa(card->read.ccws);
+		(__u32)virt_to_phys(card->read.ccws);
 	/* Setg initial state of the read channel. */
 	card->read.state = LCS_CH_STATE_INIT;
 
@@ -278,12 +278,12 @@ lcs_setup_write_ccws(struct lcs_card *card)
 		 * we do not need to do set_normalized_cda.
 		 */
 		card->write.ccws[cnt].cda =
-			(__u32) __pa(card->write.iob[cnt].data);
+			(__u32)virt_to_phys(card->write.iob[cnt].data);
 	}
 	/* Last ccw is a tic (transfer in channel). */
 	card->write.ccws[LCS_NUM_BUFFS].cmd_code = LCS_CCW_TRANSFER;
 	card->write.ccws[LCS_NUM_BUFFS].cda =
-		(__u32) __pa(card->write.ccws);
+		(__u32)virt_to_phys(card->write.ccws);
 	/* Set initial state of the write channel. */
 	card->read.state = LCS_CH_STATE_INIT;
 
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 29f0111f8e11..d99c5b773e22 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -426,7 +426,7 @@ static void qeth_setup_ccw(struct ccw1 *ccw, u8 cmd_code, u8 flags, u32 len,
 	ccw->cmd_code = cmd_code;
 	ccw->flags = flags | CCW_FLAG_SLI;
 	ccw->count = len;
-	ccw->cda = (__u32) __pa(data);
+	ccw->cda = (__u32)virt_to_phys(data);
 }
 
 static int __qeth_issue_next_read(struct qeth_card *card)
-- 
2.32.0