[PATCH] llc2: Remove redundant assignment to rc

[PATCH] llc2: Remove redundant assignment to rc

[Jiapeng Chong]

Variable rc is set to zero but this value is never read as it is
overwritten with a new value later on, hence it is a redundant
assignment and can be removed.

Cleans up the following clang-analyzer warning:

net/llc/llc_station.c:86:2: warning: Value stored to 'rc' is never read
[clang-analyzer-deadcode.DeadStores].

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
---
 net/llc/llc_station.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/net/llc/llc_station.c b/net/llc/llc_station.c
index c29170e..05c6ae0 100644
--- a/net/llc/llc_station.c
+++ b/net/llc/llc_station.c
@@ -54,7 +54,6 @@ static int llc_station_ac_send_xid_r(struct sk_buff *skb)
 
 	if (!nskb)
 		goto out;
-	rc = 0;
 	llc_pdu_decode_sa(skb, mac_da);
 	llc_pdu_decode_ssap(skb, &dsap);
 	llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, 0, dsap, LLC_PDU_RSP);
@@ -83,7 +82,6 @@ static int llc_station_ac_send_test_r(struct sk_buff *skb)
 
 	if (!nskb)
 		goto out;
-	rc = 0;
 	llc_pdu_decode_sa(skb, mac_da);
 	llc_pdu_decode_ssap(skb, &dsap);
 	llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, 0, dsap, LLC_PDU_RSP);
-- 
1.8.3.1

Re: [PATCH] llc2: Remove redundant assignment to rc

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net-next.git (refs/heads/master):

On Tue, 27 Apr 2021 18:29:48 +0800 you wrote:
> Variable rc is set to zero but this value is never read as it is
> overwritten with a new value later on, hence it is a redundant
> assignment and can be removed.
> 
> Cleans up the following clang-analyzer warning:
> 
> net/llc/llc_station.c:86:2: warning: Value stored to 'rc' is never read
> [clang-analyzer-deadcode.DeadStores].
> 
> [...]

Here is the summary with links:
  - llc2: Remove redundant assignment to rc
    https://git.kernel.org/netdev/net-next/c/2342eb1afe00

You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html

[PATCH] llc2: Remove redundant assignment to rc

[Yang Li]

Variable 'rc' is set to zero but this value is never read as it is
overwritten with a new value later on, hence it is a redundant
assignment and can be removed.

Cleans up the following clang-analyzer warning:

net/llc/llc_station.c:54:2: warning: Value stored to 'rc' is never read
[clang-analyzer-deadcode.DeadStores]
net/llc/llc_station.c:83:2: warning: Value stored to 'rc' is never read
[clang-analyzer-deadcode.DeadStores]

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
---
 net/llc/llc_station.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/net/llc/llc_station.c b/net/llc/llc_station.c
index c29170e..05c6ae0 100644
--- a/net/llc/llc_station.c
+++ b/net/llc/llc_station.c
@@ -54,7 +54,6 @@ static int llc_station_ac_send_xid_r(struct sk_buff *skb)
 
 	if (!nskb)
 		goto out;
-	rc = 0;
 	llc_pdu_decode_sa(skb, mac_da);
 	llc_pdu_decode_ssap(skb, &dsap);
 	llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, 0, dsap, LLC_PDU_RSP);
@@ -83,7 +82,6 @@ static int llc_station_ac_send_test_r(struct sk_buff *skb)
 
 	if (!nskb)
 		goto out;
-	rc = 0;
 	llc_pdu_decode_sa(skb, mac_da);
 	llc_pdu_decode_ssap(skb, &dsap);
 	llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, 0, dsap, LLC_PDU_RSP);
-- 
1.8.3.1