The variable okay is being initialized with a value that is never
read, it is being re-assigned later on. The initialization is
redundant and can be removed. Also clean up assignment to
variable freespace using an assignment and mask operation.
Cleans up clang scan build warning:
drivers/net/ethernet/xircom/xirc2ps_cs.c:1244:5: warning: Value stored
to 'okay' is never read [deadcode.DeadStores]
Signed-off-by: Colin Ian King <[email protected]>
---
drivers/net/ethernet/xircom/xirc2ps_cs.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/xircom/xirc2ps_cs.c b/drivers/net/ethernet/xircom/xirc2ps_cs.c
index 9f505cf02d96..e9bc38fd2025 100644
--- a/drivers/net/ethernet/xircom/xirc2ps_cs.c
+++ b/drivers/net/ethernet/xircom/xirc2ps_cs.c
@@ -1240,9 +1240,7 @@ do_start_xmit(struct sk_buff *skb, struct net_device *dev)
netif_stop_queue(dev);
SelectPage(0);
PutWord(XIRCREG0_TRS, (u_short)pktlen+2);
- freespace = GetWord(XIRCREG0_TSO);
- okay = freespace & 0x8000;
- freespace &= 0x7fff;
+ freespace = GetWord(XIRCREG0_TSO) & 0x7fff;
/* TRS doesn't work - (indeed it is eliminated with sil-rev 1) */
okay = pktlen +2 < freespace;
pr_debug("%s: avail. tx space=%u%s\n",
--
2.39.2
On Mon, Feb 05, 2024 at 09:36:43PM +0000, Colin Ian King wrote:
> The variable okay is being initialized with a value that is never
> read, it is being re-assigned later on. The initialization is
> redundant and can be removed. Also clean up assignment to
> variable freespace using an assignment and mask operation.
>
> Cleans up clang scan build warning:
> drivers/net/ethernet/xircom/xirc2ps_cs.c:1244:5: warning: Value stored
> to 'okay' is never read [deadcode.DeadStores]
>
> Signed-off-by: Colin Ian King <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Hello:
This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <[email protected]>:
On Mon, 5 Feb 2024 21:36:43 +0000 you wrote:
> The variable okay is being initialized with a value that is never
> read, it is being re-assigned later on. The initialization is
> redundant and can be removed. Also clean up assignment to
> variable freespace using an assignment and mask operation.
>
> Cleans up clang scan build warning:
> drivers/net/ethernet/xircom/xirc2ps_cs.c:1244:5: warning: Value stored
> to 'okay' is never read [deadcode.DeadStores]
>
> [...]
Here is the summary with links:
- [next] xirc2ps_cs: remove redundant assignment to variable okay, clean up freespace
https://git.kernel.org/netdev/net-next/c/e084a1c1dff6
You are awesome, thank you!
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