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From: YueHaibing <yuehaibing@huawei.com>
To: <boris.ostrovsky@oracle.com>, <jgross@suse.com>,
	<sstabellini@kernel.org>
Cc: <linux-kernel@vger.kernel.org>, <xen-devel@lists.xenproject.org>,
	YueHaibing <yuehaibing@huawei.com>
Subject: [PATCH -next] xen/pvcalls: Remove set but not used variable
Date: Sat, 25 May 2019 22:21:51 +0800	[thread overview]
Message-ID: <20190525142151.4664-1-yuehaibing@huawei.com> (raw)

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/xen/pvcalls-front.c: In function pvcalls_front_sendmsg:
drivers/xen/pvcalls-front.c:543:25: warning: variable bedata set but not used [-Wunused-but-set-variable]
drivers/xen/pvcalls-front.c: In function pvcalls_front_recvmsg:
drivers/xen/pvcalls-front.c:638:25: warning: variable bedata set but not used [-Wunused-but-set-variable]

They are never used since introduction.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
 drivers/xen/pvcalls-front.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/xen/pvcalls-front.c b/drivers/xen/pvcalls-front.c
index 8a249c95c193..d7438fdc5706 100644
--- a/drivers/xen/pvcalls-front.c
+++ b/drivers/xen/pvcalls-front.c
@@ -540,7 +540,6 @@ static int __write_ring(struct pvcalls_data_intf *intf,
 int pvcalls_front_sendmsg(struct socket *sock, struct msghdr *msg,
 			  size_t len)
 {
-	struct pvcalls_bedata *bedata;
 	struct sock_mapping *map;
 	int sent, tot_sent = 0;
 	int count = 0, flags;
@@ -552,7 +551,6 @@ int pvcalls_front_sendmsg(struct socket *sock, struct msghdr *msg,
 	map = pvcalls_enter_sock(sock);
 	if (IS_ERR(map))
 		return PTR_ERR(map);
-	bedata = dev_get_drvdata(&pvcalls_front_dev->dev);
 
 	mutex_lock(&map->active.out_mutex);
 	if ((flags & MSG_DONTWAIT) && !pvcalls_front_write_todo(map)) {
@@ -635,7 +633,6 @@ static int __read_ring(struct pvcalls_data_intf *intf,
 int pvcalls_front_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
 		     int flags)
 {
-	struct pvcalls_bedata *bedata;
 	int ret;
 	struct sock_mapping *map;
 
@@ -645,7 +642,6 @@ int pvcalls_front_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
 	map = pvcalls_enter_sock(sock);
 	if (IS_ERR(map))
 		return PTR_ERR(map);
-	bedata = dev_get_drvdata(&pvcalls_front_dev->dev);
 
 	mutex_lock(&map->active.in_mutex);
 	if (len > XEN_FLEX_RING_SIZE(PVCALLS_RING_ORDER))
-- 
2.17.1



WARNING: multiple messages have this Message-ID (diff)
From: YueHaibing <yuehaibing@huawei.com>
To: <boris.ostrovsky@oracle.com>, <jgross@suse.com>,
	<sstabellini@kernel.org>
Cc: xen-devel@lists.xenproject.org,
	YueHaibing <yuehaibing@huawei.com>,
	linux-kernel@vger.kernel.org
Subject: [Xen-devel] [PATCH -next] xen/pvcalls: Remove set but not used variable
Date: Sat, 25 May 2019 22:21:51 +0800	[thread overview]
Message-ID: <20190525142151.4664-1-yuehaibing@huawei.com> (raw)

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/xen/pvcalls-front.c: In function pvcalls_front_sendmsg:
drivers/xen/pvcalls-front.c:543:25: warning: variable bedata set but not used [-Wunused-but-set-variable]
drivers/xen/pvcalls-front.c: In function pvcalls_front_recvmsg:
drivers/xen/pvcalls-front.c:638:25: warning: variable bedata set but not used [-Wunused-but-set-variable]

They are never used since introduction.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
 drivers/xen/pvcalls-front.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/xen/pvcalls-front.c b/drivers/xen/pvcalls-front.c
index 8a249c95c193..d7438fdc5706 100644
--- a/drivers/xen/pvcalls-front.c
+++ b/drivers/xen/pvcalls-front.c
@@ -540,7 +540,6 @@ static int __write_ring(struct pvcalls_data_intf *intf,
 int pvcalls_front_sendmsg(struct socket *sock, struct msghdr *msg,
 			  size_t len)
 {
-	struct pvcalls_bedata *bedata;
 	struct sock_mapping *map;
 	int sent, tot_sent = 0;
 	int count = 0, flags;
@@ -552,7 +551,6 @@ int pvcalls_front_sendmsg(struct socket *sock, struct msghdr *msg,
 	map = pvcalls_enter_sock(sock);
 	if (IS_ERR(map))
 		return PTR_ERR(map);
-	bedata = dev_get_drvdata(&pvcalls_front_dev->dev);
 
 	mutex_lock(&map->active.out_mutex);
 	if ((flags & MSG_DONTWAIT) && !pvcalls_front_write_todo(map)) {
@@ -635,7 +633,6 @@ static int __read_ring(struct pvcalls_data_intf *intf,
 int pvcalls_front_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
 		     int flags)
 {
-	struct pvcalls_bedata *bedata;
 	int ret;
 	struct sock_mapping *map;
 
@@ -645,7 +642,6 @@ int pvcalls_front_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
 	map = pvcalls_enter_sock(sock);
 	if (IS_ERR(map))
 		return PTR_ERR(map);
-	bedata = dev_get_drvdata(&pvcalls_front_dev->dev);
 
 	mutex_lock(&map->active.in_mutex);
 	if (len > XEN_FLEX_RING_SIZE(PVCALLS_RING_ORDER))
-- 
2.17.1



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             reply	other threads:[~2019-05-25 14:23 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-25 14:21 YueHaibing [this message]
2019-05-25 14:21 ` [Xen-devel] [PATCH -next] xen/pvcalls: Remove set but not used variable YueHaibing
2019-05-27  4:58 ` Juergen Gross
2019-05-27  4:58 ` Juergen Gross
2019-05-27  4:58   ` [Xen-devel] " Juergen Gross
2019-05-25 14:21 YueHaibing

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