2023-03-29 13:06:42

by Tom Rix

[permalink] [raw]
Subject: [PATCH] net: ksz884x: remove unused change variable

clang with W=1 reports
drivers/net/ethernet/micrel/ksz884x.c:3216:6: error: variable
'change' set but not used [-Werror,-Wunused-but-set-variable]
int change = 0;
^
This variable is not used so remove it.

Signed-off-by: Tom Rix <[email protected]>
---
drivers/net/ethernet/micrel/ksz884x.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/micrel/ksz884x.c b/drivers/net/ethernet/micrel/ksz884x.c
index e6acd1e7b263..f78e8ead8c36 100644
--- a/drivers/net/ethernet/micrel/ksz884x.c
+++ b/drivers/net/ethernet/micrel/ksz884x.c
@@ -3213,7 +3213,6 @@ static void port_get_link_speed(struct ksz_port *port)
u8 remote;
int i;
int p;
- int change = 0;

interrupt = hw_block_intr(hw);

@@ -3260,17 +3259,14 @@ static void port_get_link_speed(struct ksz_port *port)
port_cfg_back_pressure(hw, p,
(1 == info->duplex));
}
- change |= 1 << i;
port_cfg_change(hw, port, info, status);
}
info->state = media_connected;
} else {
- if (media_disconnected != info->state) {
- change |= 1 << i;
-
- /* Indicate the link just goes down. */
+ /* Indicate the link just goes down. */
+ if (media_disconnected != info->state)
hw->port_mib[p].link_down = 1;
- }
+
info->state = media_disconnected;
}
hw->port_mib[p].state = (u8) info->state;
--
2.27.0


2023-03-29 13:38:54

by Simon Horman

[permalink] [raw]
Subject: Re: [PATCH] net: ksz884x: remove unused change variable

On Wed, Mar 29, 2023 at 08:59:29AM -0400, Tom Rix wrote:
> clang with W=1 reports
> drivers/net/ethernet/micrel/ksz884x.c:3216:6: error: variable
> 'change' set but not used [-Werror,-Wunused-but-set-variable]
> int change = 0;
> ^
> This variable is not used so remove it.
>
> Signed-off-by: Tom Rix <[email protected]>

Reviewed-by: Simon Horman <[email protected]>

2023-03-29 13:51:26

by Simon Horman

[permalink] [raw]
Subject: Re: [PATCH] net: ksz884x: remove unused change variable

On Wed, Mar 29, 2023 at 03:23:38PM +0200, Simon Horman wrote:
> On Wed, Mar 29, 2023 at 08:59:29AM -0400, Tom Rix wrote:
> > clang with W=1 reports
> > drivers/net/ethernet/micrel/ksz884x.c:3216:6: error: variable
> > 'change' set but not used [-Werror,-Wunused-but-set-variable]
> > int change = 0;
> > ^
> > This variable is not used so remove it.
> >
> > Signed-off-by: Tom Rix <[email protected]>
>
> Reviewed-by: Simon Horman <[email protected]>

Hi Tom,

I notice a very large number of unused functions in ksz884x.c.
And I think this means some corresponding #defines can also be removed.

I'm wondering if you happen to be looking at this.
If not, I'll see about preparing a patch.

2023-03-31 06:33:58

by patchwork-bot+netdevbpf

[permalink] [raw]
Subject: Re: [PATCH] net: ksz884x: remove unused change variable

Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <[email protected]>:

On Wed, 29 Mar 2023 08:59:29 -0400 you wrote:
> clang with W=1 reports
> drivers/net/ethernet/micrel/ksz884x.c:3216:6: error: variable
> 'change' set but not used [-Werror,-Wunused-but-set-variable]
> int change = 0;
> ^
> This variable is not used so remove it.
>
> [...]

Here is the summary with links:
- net: ksz884x: remove unused change variable
https://git.kernel.org/netdev/net-next/c/9a865a98a336

You are awesome, thank you!
--
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