* [PATCH net-next] mptcp: Remove set but not used variable 'can_ack'
@ 2020-03-18 2:01 YueHaibing
2020-03-18 9:26 ` Paolo Abeni
2020-03-22 3:21 ` David Miller
0 siblings, 2 replies; 3+ messages in thread
From: YueHaibing @ 2020-03-18 2:01 UTC (permalink / raw)
To: Mat Martineau, Matthieu Baerts, pabeni, David S . Miller, Jakub Kicinski
Cc: YueHaibing, netdev, mptcp, linux-kernel
Fixes gcc '-Wunused-but-set-variable' warning:
net/mptcp/options.c: In function 'mptcp_established_options_dss':
net/mptcp/options.c:338:7: warning:
variable 'can_ack' set but not used [-Wunused-but-set-variable]
commit dc093db5cc05 ("mptcp: drop unneeded checks")
leave behind this unused, remove it.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
net/mptcp/options.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/net/mptcp/options.c b/net/mptcp/options.c
index 63c8ee49cef2..8ba34950241c 100644
--- a/net/mptcp/options.c
+++ b/net/mptcp/options.c
@@ -335,7 +335,6 @@ static bool mptcp_established_options_dss(struct sock *sk, struct sk_buff *skb,
struct mptcp_sock *msk;
unsigned int ack_size;
bool ret = false;
- bool can_ack;
u8 tcp_fin;
if (skb) {
@@ -364,7 +363,6 @@ static bool mptcp_established_options_dss(struct sock *sk, struct sk_buff *skb,
/* passive sockets msk will set the 'can_ack' after accept(), even
* if the first subflow may have the already the remote key handy
*/
- can_ack = true;
opts->ext_copy.use_ack = 0;
msk = mptcp_sk(subflow->conn);
if (!READ_ONCE(msk->can_ack)) {
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH net-next] mptcp: Remove set but not used variable 'can_ack'
2020-03-18 2:01 [PATCH net-next] mptcp: Remove set but not used variable 'can_ack' YueHaibing
@ 2020-03-18 9:26 ` Paolo Abeni
2020-03-22 3:21 ` David Miller
1 sibling, 0 replies; 3+ messages in thread
From: Paolo Abeni @ 2020-03-18 9:26 UTC (permalink / raw)
To: YueHaibing
Cc: netdev, mptcp, linux-kernel, Mat Martineau, Matthieu Baerts,
David S . Miller, Jakub Kicinski
On Wed, 2020-03-18 at 02:01 +0000, YueHaibing wrote:
> Fixes gcc '-Wunused-but-set-variable' warning:
>
> net/mptcp/options.c: In function 'mptcp_established_options_dss':
> net/mptcp/options.c:338:7: warning:
> variable 'can_ack' set but not used [-Wunused-but-set-variable]
>
> commit dc093db5cc05 ("mptcp: drop unneeded checks")
> leave behind this unused, remove it.
>
> Signed-off-by: YueHaibing <yuehaibing@huawei.com>
> ---
> net/mptcp/options.c | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/net/mptcp/options.c b/net/mptcp/options.c
> index 63c8ee49cef2..8ba34950241c 100644
> --- a/net/mptcp/options.c
> +++ b/net/mptcp/options.c
> @@ -335,7 +335,6 @@ static bool mptcp_established_options_dss(struct sock *sk, struct sk_buff *skb,
> struct mptcp_sock *msk;
> unsigned int ack_size;
> bool ret = false;
> - bool can_ack;
> u8 tcp_fin;
>
> if (skb) {
> @@ -364,7 +363,6 @@ static bool mptcp_established_options_dss(struct sock *sk, struct sk_buff *skb,
> /* passive sockets msk will set the 'can_ack' after accept(), even
> * if the first subflow may have the already the remote key handy
> */
> - can_ack = true;
> opts->ext_copy.use_ack = 0;
> msk = mptcp_sk(subflow->conn);
> if (!READ_ONCE(msk->can_ack)) {
Yep, left-over on my side! Thanks for clearing it!
Acked-by: Paolo Abeni <pabeni@redhat.com>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH net-next] mptcp: Remove set but not used variable 'can_ack'
2020-03-18 2:01 [PATCH net-next] mptcp: Remove set but not used variable 'can_ack' YueHaibing
2020-03-18 9:26 ` Paolo Abeni
@ 2020-03-22 3:21 ` David Miller
1 sibling, 0 replies; 3+ messages in thread
From: David Miller @ 2020-03-22 3:21 UTC (permalink / raw)
To: yuehaibing
Cc: mathew.j.martineau, matthieu.baerts, pabeni, kuba, netdev, mptcp,
linux-kernel
From: YueHaibing <yuehaibing@huawei.com>
Date: Wed, 18 Mar 2020 02:01:57 +0000
> Fixes gcc '-Wunused-but-set-variable' warning:
>
> net/mptcp/options.c: In function 'mptcp_established_options_dss':
> net/mptcp/options.c:338:7: warning:
> variable 'can_ack' set but not used [-Wunused-but-set-variable]
>
> commit dc093db5cc05 ("mptcp: drop unneeded checks")
> leave behind this unused, remove it.
>
> Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Applied, thanks.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2020-03-18 9:26 ` Paolo Abeni
2020-03-22 3:21 ` David Miller
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