* [PATCH] net: spider_net: Mark expected switch fall-through
@ 2019-07-29 0:32 Gustavo A. R. Silva
2019-07-29 16:39 ` Kees Cook
2019-07-29 18:12 ` David Miller
0 siblings, 2 replies; 3+ messages in thread
From: Gustavo A. R. Silva @ 2019-07-29 0:32 UTC (permalink / raw)
To: Ishizaki Kou, David S. Miller
Cc: netdev, linux-kernel, Gustavo A. R. Silva, Stephen Rothwell, Kees Cook
Mark switch cases where we are expecting to fall through.
This patch fixes the following warning:
drivers/net/ethernet/toshiba/spider_net.c: In function 'spider_net_release_tx_chain':
drivers/net/ethernet/toshiba/spider_net.c:783:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
if (!brutal) {
^
drivers/net/ethernet/toshiba/spider_net.c:792:3: note: here
case SPIDER_NET_DESCR_RESPONSE_ERROR:
^~~~
Notice that, in this particular case, the code comment is
modified in accordance with what GCC is expecting to find.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
drivers/net/ethernet/toshiba/spider_net.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/toshiba/spider_net.c b/drivers/net/ethernet/toshiba/spider_net.c
index 5b196ebfed49..0f346761a2b2 100644
--- a/drivers/net/ethernet/toshiba/spider_net.c
+++ b/drivers/net/ethernet/toshiba/spider_net.c
@@ -788,6 +788,7 @@ spider_net_release_tx_chain(struct spider_net_card *card, int brutal)
/* fallthrough, if we release the descriptors
* brutally (then we don't care about
* SPIDER_NET_DESCR_CARDOWNED) */
+ /* Fall through */
case SPIDER_NET_DESCR_RESPONSE_ERROR:
case SPIDER_NET_DESCR_PROTECTION_ERROR:
--
2.22.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] net: spider_net: Mark expected switch fall-through
2019-07-29 0:32 [PATCH] net: spider_net: Mark expected switch fall-through Gustavo A. R. Silva
@ 2019-07-29 16:39 ` Kees Cook
2019-07-29 18:12 ` David Miller
1 sibling, 0 replies; 3+ messages in thread
From: Kees Cook @ 2019-07-29 16:39 UTC (permalink / raw)
To: Gustavo A. R. Silva
Cc: Ishizaki Kou, David S. Miller, netdev, linux-kernel, Stephen Rothwell
On Sun, Jul 28, 2019 at 07:32:51PM -0500, Gustavo A. R. Silva wrote:
> Mark switch cases where we are expecting to fall through.
>
> This patch fixes the following warning:
>
> drivers/net/ethernet/toshiba/spider_net.c: In function 'spider_net_release_tx_chain':
> drivers/net/ethernet/toshiba/spider_net.c:783:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
> if (!brutal) {
> ^
> drivers/net/ethernet/toshiba/spider_net.c:792:3: note: here
> case SPIDER_NET_DESCR_RESPONSE_ERROR:
> ^~~~
>
> Notice that, in this particular case, the code comment is
> modified in accordance with what GCC is expecting to find.
>
> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
-Kees
> ---
> drivers/net/ethernet/toshiba/spider_net.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/net/ethernet/toshiba/spider_net.c b/drivers/net/ethernet/toshiba/spider_net.c
> index 5b196ebfed49..0f346761a2b2 100644
> --- a/drivers/net/ethernet/toshiba/spider_net.c
> +++ b/drivers/net/ethernet/toshiba/spider_net.c
> @@ -788,6 +788,7 @@ spider_net_release_tx_chain(struct spider_net_card *card, int brutal)
> /* fallthrough, if we release the descriptors
> * brutally (then we don't care about
> * SPIDER_NET_DESCR_CARDOWNED) */
> + /* Fall through */
>
> case SPIDER_NET_DESCR_RESPONSE_ERROR:
> case SPIDER_NET_DESCR_PROTECTION_ERROR:
> --
> 2.22.0
>
--
Kees Cook
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] net: spider_net: Mark expected switch fall-through
2019-07-29 0:32 [PATCH] net: spider_net: Mark expected switch fall-through Gustavo A. R. Silva
2019-07-29 16:39 ` Kees Cook
@ 2019-07-29 18:12 ` David Miller
1 sibling, 0 replies; 3+ messages in thread
From: David Miller @ 2019-07-29 18:12 UTC (permalink / raw)
To: gustavo; +Cc: kou.ishizaki, netdev, linux-kernel, sfr, keescook
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Sun, 28 Jul 2019 19:32:51 -0500
> Mark switch cases where we are expecting to fall through.
>
> This patch fixes the following warning:
>
> drivers/net/ethernet/toshiba/spider_net.c: In function 'spider_net_release_tx_chain':
> drivers/net/ethernet/toshiba/spider_net.c:783:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
> if (!brutal) {
> ^
> drivers/net/ethernet/toshiba/spider_net.c:792:3: note: here
> case SPIDER_NET_DESCR_RESPONSE_ERROR:
> ^~~~
>
> Notice that, in this particular case, the code comment is
> modified in accordance with what GCC is expecting to find.
>
> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Applied.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2019-07-29 16:39 ` Kees Cook
2019-07-29 18:12 ` David Miller
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