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Date: Sat, 21 Jan 2017 11:38:12 +0530 From: Bhumika Goyal <bhumirks@...il.com> To: julia.lawall@...6.fr, michal.simek@...inx.com, soren.brinkmann@...inx.com, netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org Cc: Bhumika Goyal <bhumirks@...il.com> Subject: [PATCH] net: xilinx: constify net_device_ops structures Declare net_device_ops structures as const as they are 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@......}; @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@...il.com> --- 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
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