[PATCH] e1000: drop unneeded assignment in e1000_set_itr()

[PATCH] e1000: drop unneeded assignment in e1000_set_itr()

[Sudip Mukherjee]

The variable 'current_itr' is assigned to 0 before jumping to
'set_itr_now' but it has not been used after the jump. So, remove the
unneeded assignement.

Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
---
 drivers/net/ethernet/intel/e1000/e1000_main.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c
index 5e28cf4fa2cd..042de276e632 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_main.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_main.c
@@ -2632,7 +2632,6 @@ static void e1000_set_itr(struct e1000_adapter *adapter)
 
 	/* for non-gigabit speeds, just fix the interrupt rate at 4000 */
 	if (unlikely(adapter->link_speed != SPEED_1000)) {
-		current_itr = 0;
 		new_itr = 4000;
 		goto set_itr_now;
 	}
-- 
2.11.0

Re: [linux-safety] [PATCH] e1000: drop unneeded assignment in e1000_set_itr()

[Lukas Bulwahn]

On Sun, 11 Oct 2020, Sudip Mukherjee wrote:

> The variable 'current_itr' is assigned to 0 before jumping to
> 'set_itr_now' but it has not been used after the jump. So, remove the
> unneeded assignement.
> 
> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
> ---
>  drivers/net/ethernet/intel/e1000/e1000_main.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c
> index 5e28cf4fa2cd..042de276e632 100644
> --- a/drivers/net/ethernet/intel/e1000/e1000_main.c
> +++ b/drivers/net/ethernet/intel/e1000/e1000_main.c
> @@ -2632,7 +2632,6 @@ static void e1000_set_itr(struct e1000_adapter *adapter)
>  
>  	/* for non-gigabit speeds, just fix the interrupt rate at 4000 */
>  	if (unlikely(adapter->link_speed != SPEED_1000)) {
> -		current_itr = 0;
>  		new_itr = 4000;
>  		goto set_itr_now;
>  	}

Alternatively, you could just inline the max(...) into the switch and 
completely drop the current_itr definition.

But your solution probably does the job: it is a "No functional change" 
commit.

Reviewed-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>


Lukas

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