linux-kernel - [PATCH v2 1/3] net/ncsi: fix restricted cast warning of sparse

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Message-ID: <20210708122754.555846-2-i.mikhaylov@yadro.com>
Date:   Thu, 8 Jul 2021 15:27:52 +0300
From:   Ivan Mikhaylov <i.mikhaylov@...ro.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Samuel Mendoza-Jonas <sam@...dozajonas.com>
CC:     Ivan Mikhaylov <i.mikhaylov@...ro.com>,
        Joel Stanley <joel@....id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <openbmc@...ts.ozlabs.org>
Subject: [PATCH v2 1/3] net/ncsi: fix restricted cast warning of sparse

Sparse reports:
net/ncsi/ncsi-rsp.c:406:24: warning: cast to restricted __be32
net/ncsi/ncsi-manage.c:732:33: warning: cast to restricted __be32
net/ncsi/ncsi-manage.c:756:25: warning: cast to restricted __be32
net/ncsi/ncsi-manage.c:779:25: warning: cast to restricted __be32

Signed-off-by: Ivan Mikhaylov <i.mikhaylov@...ro.com>
---
 net/ncsi/ncsi-manage.c | 6 +++---
 net/ncsi/ncsi-rsp.c    | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/net/ncsi/ncsi-manage.c b/net/ncsi/ncsi-manage.c
index ca04b6df1341..42b54a3da2e6 100644
--- a/net/ncsi/ncsi-manage.c
+++ b/net/ncsi/ncsi-manage.c
@@ -700,7 +700,7 @@ static int ncsi_oem_gma_handler_bcm(struct ncsi_cmd_arg *nca)
 	nca->payload = NCSI_OEM_BCM_CMD_GMA_LEN;
 
 	memset(data, 0, NCSI_OEM_BCM_CMD_GMA_LEN);
-	*(unsigned int *)data = ntohl(NCSI_OEM_MFR_BCM_ID);
+	*(unsigned int *)data = ntohl((__force __be32)NCSI_OEM_MFR_BCM_ID);
 	data[5] = NCSI_OEM_BCM_CMD_GMA;
 
 	nca->data = data;
@@ -724,7 +724,7 @@ static int ncsi_oem_gma_handler_mlx(struct ncsi_cmd_arg *nca)
 	nca->payload = NCSI_OEM_MLX_CMD_GMA_LEN;
 
 	memset(&u, 0, sizeof(u));
-	u.data_u32[0] = ntohl(NCSI_OEM_MFR_MLX_ID);
+	u.data_u32[0] = ntohl((__force __be32)NCSI_OEM_MFR_MLX_ID);
 	u.data_u8[5] = NCSI_OEM_MLX_CMD_GMA;
 	u.data_u8[6] = NCSI_OEM_MLX_CMD_GMA_PARAM;
 
@@ -747,7 +747,7 @@ static int ncsi_oem_smaf_mlx(struct ncsi_cmd_arg *nca)
 	int ret = 0;
 
 	memset(&u, 0, sizeof(u));
-	u.data_u32[0] = ntohl(NCSI_OEM_MFR_MLX_ID);
+	u.data_u32[0] = ntohl((__force __be32)NCSI_OEM_MFR_MLX_ID);
 	u.data_u8[5] = NCSI_OEM_MLX_CMD_SMAF;
 	u.data_u8[6] = NCSI_OEM_MLX_CMD_SMAF_PARAM;
 	memcpy(&u.data_u8[MLX_SMAF_MAC_ADDR_OFFSET],
diff --git a/net/ncsi/ncsi-rsp.c b/net/ncsi/ncsi-rsp.c
index 888ccc2d4e34..04bc50be5c01 100644
--- a/net/ncsi/ncsi-rsp.c
+++ b/net/ncsi/ncsi-rsp.c
@@ -403,7 +403,7 @@ static int ncsi_rsp_handler_ev(struct ncsi_request *nr)
 	/* Update to VLAN mode */
 	cmd = (struct ncsi_cmd_ev_pkt *)skb_network_header(nr->cmd);
 	ncm->enable = 1;
-	ncm->data[0] = ntohl(cmd->mode);
+	ncm->data[0] = ntohl((__force __be32)cmd->mode);
 
 	return 0;
 }
-- 
2.31.1