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* [PATCH] Bluetooth: 6lowpan: Make variable header_ops constant
@ 2019-08-15  5:52 Nishka Dasgupta
  2019-08-15  6:46 ` Marcel Holtmann
  0 siblings, 1 reply; 2+ messages in thread
From: Nishka Dasgupta @ 2019-08-15  5:52 UTC (permalink / raw)
  To: marcel, johan.hedberg, linux-bluetooth, linux-kernel, davem, netdev
  Cc: Nishka Dasgupta

Static variable header_ops, of type header_ops, is used only once, when
it is assigned to field header_ops of a variable having type net_device.
This corresponding field is declared as const in the definition of
net_device. Hence make header_ops constant as well to protect it from
unnecessary modification.
Issue found with Coccinelle.

Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
---
 net/bluetooth/6lowpan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/6lowpan.c b/net/bluetooth/6lowpan.c
index 9d41de1ec90f..bb55d92691b0 100644
--- a/net/bluetooth/6lowpan.c
+++ b/net/bluetooth/6lowpan.c
@@ -583,7 +583,7 @@ static const struct net_device_ops netdev_ops = {
 	.ndo_start_xmit		= bt_xmit,
 };
 
-static struct header_ops header_ops = {
+static const struct header_ops header_ops = {
 	.create	= header_create,
 };
 
-- 
2.19.1


^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH] Bluetooth: 6lowpan: Make variable header_ops constant
  2019-08-15  5:52 [PATCH] Bluetooth: 6lowpan: Make variable header_ops constant Nishka Dasgupta
@ 2019-08-15  6:46 ` Marcel Holtmann
  0 siblings, 0 replies; 2+ messages in thread
From: Marcel Holtmann @ 2019-08-15  6:46 UTC (permalink / raw)
  To: Nishka Dasgupta
  Cc: Johan Hedberg, linux-bluetooth, linux-kernel, David S. Miller, netdev

Hi Nishka,

> Static variable header_ops, of type header_ops, is used only once, when
> it is assigned to field header_ops of a variable having type net_device.
> This corresponding field is declared as const in the definition of
> net_device. Hence make header_ops constant as well to protect it from
> unnecessary modification.
> Issue found with Coccinelle.
> 
> Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
> ---
> net/bluetooth/6lowpan.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)

patch has been applied to bluetooth-next tree.

Regards

Marcel


^ permalink raw reply	[flat|nested] 2+ messages in thread

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2019-08-15  5:52 [PATCH] Bluetooth: 6lowpan: Make variable header_ops constant Nishka Dasgupta
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