[PATCH 4/8] svcrdma: delete the duplicate static variables zero

[wenyang . linux]

From: Wen Yang <wenyang.linux@xxxxxxxxxxx>

Since these static variable zero is only used for boundary checks and
will not be changed, remove it and use the ones in our shared const array.

Signed-off-by: Wen Yang <wenyang.linux@xxxxxxxxxxx>
Cc: Luis Chamberlain <mcgrof@xxxxxxxxxx>
Cc: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: Joel Granados <j.granados@xxxxxxxxxxx>
Cc: Christian Brauner <brauner@xxxxxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxxx>
Cc: Eric Dumazet <edumazet@xxxxxxxxxx>
Cc: Jakub Kicinski <kuba@xxxxxxxxxx>
Cc: Paolo Abeni <pabeni@xxxxxxxxxx>
Cc: netdev@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
---
 net/sunrpc/xprtrdma/svc_rdma.c | 21 ++++++++++-----------
 1 file changed, 10 insertions(+), 11 deletions(-)

diff --git a/net/sunrpc/xprtrdma/svc_rdma.c b/net/sunrpc/xprtrdma/svc_rdma.c
index f86970733eb0..5e4cd17eeb5a 100644
--- a/net/sunrpc/xprtrdma/svc_rdma.c
+++ b/net/sunrpc/xprtrdma/svc_rdma.c
@@ -63,7 +63,6 @@ unsigned int svcrdma_max_req_size = RPCRDMA_DEF_INLINE_THRESH;
 static unsigned int min_max_inline = RPCRDMA_DEF_INLINE_THRESH;
 static unsigned int max_max_inline = RPCRDMA_MAX_INLINE_THRESH;
 static unsigned int svcrdma_stat_unused;
-static unsigned int zero;
 
 struct percpu_counter svcrdma_stat_read;
 struct percpu_counter svcrdma_stat_recv;
@@ -170,8 +169,8 @@ static struct ctl_table svcrdma_parm_table[] = {
 		.maxlen		= sizeof(unsigned int),
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec_minmax,
-		.extra1		= &zero,
-		.extra2		= &zero,
+		.extra1		= SYSCTL_ZERO,
+		.extra2		= SYSCTL_ZERO,
 	},
 	{
 		.procname	= "rdma_stat_rq_poll",
@@ -179,8 +178,8 @@ static struct ctl_table svcrdma_parm_table[] = {
 		.maxlen		= sizeof(unsigned int),
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec_minmax,
-		.extra1		= &zero,
-		.extra2		= &zero,
+		.extra1		= SYSCTL_ZERO,
+		.extra2		= SYSCTL_ZERO,
 	},
 	{
 		.procname	= "rdma_stat_rq_prod",
@@ -188,8 +187,8 @@ static struct ctl_table svcrdma_parm_table[] = {
 		.maxlen		= sizeof(unsigned int),
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec_minmax,
-		.extra1		= &zero,
-		.extra2		= &zero,
+		.extra1		= SYSCTL_ZERO,
+		.extra2		= SYSCTL_ZERO,
 	},
 	{
 		.procname	= "rdma_stat_sq_poll",
@@ -197,8 +196,8 @@ static struct ctl_table svcrdma_parm_table[] = {
 		.maxlen		= sizeof(unsigned int),
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec_minmax,
-		.extra1		= &zero,
-		.extra2		= &zero,
+		.extra1		= SYSCTL_ZERO,
+		.extra2		= SYSCTL_ZERO,
 	},
 	{
 		.procname	= "rdma_stat_sq_prod",
@@ -206,8 +205,8 @@ static struct ctl_table svcrdma_parm_table[] = {
 		.maxlen		= sizeof(unsigned int),
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec_minmax,
-		.extra1		= &zero,
-		.extra2		= &zero,
+		.extra1		= SYSCTL_ZERO,
+		.extra2		= SYSCTL_ZERO,
 	},
 	{ },
 };
-- 
2.25.1