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From: Namjae Jeon <linkinjeon@kernel.org>
To: linux-cifs@vger.kernel.org
Cc: Hyunchul Lee <hyc.lee@gmail.com>, Namjae Jeon <linkinjeon@kernel.org>
Subject: [PATCH 2/4] ksmbd: smbd: fix dma mapping error in smb_direct_post_send_data
Date: Wed,  1 Sep 2021 09:45:35 +0900	[thread overview]
Message-ID: <20210901004537.45511-2-linkinjeon@kernel.org> (raw)
In-Reply-To: <20210901004537.45511-1-linkinjeon@kernel.org>

From: Hyunchul Lee <hyc.lee@gmail.com>

Becase smb direct header is mapped and msg->num_sge
already is incremented, the decrement should be
removed from the condition.

Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
---
 fs/ksmbd/transport_rdma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ksmbd/transport_rdma.c b/fs/ksmbd/transport_rdma.c
index 58f530056ac0..52b2556e76b1 100644
--- a/fs/ksmbd/transport_rdma.c
+++ b/fs/ksmbd/transport_rdma.c
@@ -1168,7 +1168,7 @@ static int smb_direct_post_send_data(struct smb_direct_transport *t,
 			pr_err("failed to map buffer\n");
 			ret = -ENOMEM;
 			goto err;
-		} else if (sg_cnt + msg->num_sge > SMB_DIRECT_MAX_SEND_SGES - 1) {
+		} else if (sg_cnt + msg->num_sge > SMB_DIRECT_MAX_SEND_SGES) {
 			pr_err("buffer not fitted into sges\n");
 			ret = -E2BIG;
 			ib_dma_unmap_sg(t->cm_id->device, sg, sg_cnt,
-- 
2.25.1


  reply	other threads:[~2021-09-01  0:45 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-01  0:45 [PATCH 1/4] ksmbd: Reduce error log 'speed is unknown' to debug Namjae Jeon
2021-09-01  0:45 ` Namjae Jeon [this message]
2021-09-01  0:45 ` [PATCH 3/4] ksmbd: add validation for ndr read/write functions Namjae Jeon
2021-09-01 10:22   ` Dan Carpenter
2021-09-01 12:28     ` Namjae Jeon
2021-09-01  0:45 ` [PATCH 4/4] ksmbd: remove unused ksmbd_file_table_flush function Namjae Jeon

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