* [PATCH v2] net: xilinx: constify net_device_ops structure
@ 2017-01-21 6:58 ` Bhumika Goyal
0 siblings, 0 replies; 4+ messages in thread
From: Bhumika Goyal @ 2017-01-21 6:58 UTC (permalink / raw)
To: julia.lawall, michal.simek, soren.brinkmann, netdev,
linux-arm-kernel, linux-kernel
Cc: Bhumika Goyal
Declare net_device_ops structure as const as it is only stored in
the netdev_ops field of a net_device structure. This field is of type
const, so net_device_ops structures having same properties can be made
const too.
Done using Coccinelle:
@r1 disable optional_qualifier@
identifier i;
position p;
@@
static struct net_device_ops i@p={...};
@ok1@
identifier r1.i;
position p;
struct net_device ndev;
@@
ndev.netdev_ops=&i@p
@bad@
position p!={r1.p,ok1.p};
identifier r1.i;
@@
i@p
@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct net_device_ops i;
File size before:
text data bss dec hex filename
6201 744 0 6945 1b21 ethernet/xilinx/xilinx_emaclite.o
File size after:
text data bss dec hex filename
6745 192 0 6937 1b19 ethernet/xilinx/xilinx_emaclite.o
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
Changes in v2:
* Corrected the commit message.
drivers/net/ethernet/xilinx/xilinx_emaclite.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index 93dc10b..546f569 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -1065,7 +1065,7 @@ static bool get_bool(struct platform_device *ofdev, const char *s)
}
}
-static struct net_device_ops xemaclite_netdev_ops;
+static const struct net_device_ops xemaclite_netdev_ops;
/**
* xemaclite_of_probe - Probe method for the Emaclite device.
@@ -1219,7 +1219,7 @@ static int xemaclite_of_remove(struct platform_device *of_dev)
}
#endif
-static struct net_device_ops xemaclite_netdev_ops = {
+static const struct net_device_ops xemaclite_netdev_ops = {
.ndo_open = xemaclite_open,
.ndo_stop = xemaclite_close,
.ndo_start_xmit = xemaclite_send,
--
1.9.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH v2] net: xilinx: constify net_device_ops structure
@ 2017-01-21 6:58 ` Bhumika Goyal
0 siblings, 0 replies; 4+ messages in thread
From: Bhumika Goyal @ 2017-01-21 6:58 UTC (permalink / raw)
To: linux-arm-kernel
Declare net_device_ops structure as const as it is only stored in
the netdev_ops field of a net_device structure. This field is of type
const, so net_device_ops structures having same properties can be made
const too.
Done using Coccinelle:
@r1 disable optional_qualifier@
identifier i;
position p;
@@
static struct net_device_ops i at p={...};
@ok1@
identifier r1.i;
position p;
struct net_device ndev;
@@
ndev.netdev_ops=&i at p
@bad@
position p!={r1.p,ok1.p};
identifier r1.i;
@@
i at p
@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct net_device_ops i;
File size before:
text data bss dec hex filename
6201 744 0 6945 1b21 ethernet/xilinx/xilinx_emaclite.o
File size after:
text data bss dec hex filename
6745 192 0 6937 1b19 ethernet/xilinx/xilinx_emaclite.o
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
Changes in v2:
* Corrected the commit message.
drivers/net/ethernet/xilinx/xilinx_emaclite.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index 93dc10b..546f569 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -1065,7 +1065,7 @@ static bool get_bool(struct platform_device *ofdev, const char *s)
}
}
-static struct net_device_ops xemaclite_netdev_ops;
+static const struct net_device_ops xemaclite_netdev_ops;
/**
* xemaclite_of_probe - Probe method for the Emaclite device.
@@ -1219,7 +1219,7 @@ static int xemaclite_of_remove(struct platform_device *of_dev)
}
#endif
-static struct net_device_ops xemaclite_netdev_ops = {
+static const struct net_device_ops xemaclite_netdev_ops = {
.ndo_open = xemaclite_open,
.ndo_stop = xemaclite_close,
.ndo_start_xmit = xemaclite_send,
--
1.9.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH v2] net: xilinx: constify net_device_ops structure
2017-01-21 6:58 ` Bhumika Goyal
@ 2017-01-23 21:00 ` David Miller
-1 siblings, 0 replies; 4+ messages in thread
From: David Miller @ 2017-01-23 21:00 UTC (permalink / raw)
To: bhumirks
Cc: julia.lawall, michal.simek, soren.brinkmann, netdev,
linux-arm-kernel, linux-kernel
From: Bhumika Goyal <bhumirks@gmail.com>
Date: Sat, 21 Jan 2017 12:28:58 +0530
> Declare net_device_ops structure as const as it is only stored in
> the netdev_ops field of a net_device structure. This field is of type
> const, so net_device_ops structures having same properties can be made
> const too.
> Done using Coccinelle:
...
> Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Applied.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH v2] net: xilinx: constify net_device_ops structure
@ 2017-01-23 21:00 ` David Miller
0 siblings, 0 replies; 4+ messages in thread
From: David Miller @ 2017-01-23 21:00 UTC (permalink / raw)
To: linux-arm-kernel
From: Bhumika Goyal <bhumirks@gmail.com>
Date: Sat, 21 Jan 2017 12:28:58 +0530
> Declare net_device_ops structure as const as it is only stored in
> the netdev_ops field of a net_device structure. This field is of type
> const, so net_device_ops structures having same properties can be made
> const too.
> Done using Coccinelle:
...
> Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Applied.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2017-01-23 21:00 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2017-01-21 6:58 [PATCH v2] net: xilinx: constify net_device_ops structure Bhumika Goyal
2017-01-21 6:58 ` Bhumika Goyal
2017-01-23 21:00 ` David Miller
2017-01-23 21:00 ` David Miller
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