diff mbox series

e1000e: add ifdef to avoid dead code

Message ID 20200614061122.35928-1-gthelen@google.com
State Awaiting Upstream
Delegated to: David Miller
Headers show
Series e1000e: add ifdef to avoid dead code | expand

Commit Message

Greg Thelen June 14, 2020, 6:11 a.m. UTC
Commit e086ba2fccda ("e1000e: disable s0ix entry and exit flows for ME
systems") added e1000e_check_me() but it's only called from
CONFIG_PM_SLEEP protected code.  Thus builds without CONFIG_PM_SLEEP
see:
  drivers/net/ethernet/intel/e1000e/netdev.c:137:13: warning: 'e1000e_check_me' defined but not used [-Wunused-function]

Add CONFIG_PM_SLEEP ifdef guard to avoid dead code.

Fixes: e086ba2fccda ("e1000e: disable s0ix entry and exit flows for ME systems")
Signed-off-by: Greg Thelen <gthelen@google.com>
---
 drivers/net/ethernet/intel/e1000e/netdev.c | 2 ++
 1 file changed, 2 insertions(+)

Comments

Eric Dumazet June 16, 2020, 2:53 p.m. UTC | #1
On 6/13/20 11:11 PM, Greg Thelen wrote:
> Commit e086ba2fccda ("e1000e: disable s0ix entry and exit flows for ME
> systems") added e1000e_check_me() but it's only called from
> CONFIG_PM_SLEEP protected code.  Thus builds without CONFIG_PM_SLEEP
> see:
>   drivers/net/ethernet/intel/e1000e/netdev.c:137:13: warning: 'e1000e_check_me' defined but not used [-Wunused-function]
> 
> Add CONFIG_PM_SLEEP ifdef guard to avoid dead code.
> 
> Fixes: e086ba2fccda ("e1000e: disable s0ix entry and exit flows for ME systems")
> Signed-off-by: Greg Thelen <gthelen@google.com>
> ---
>  drivers/net/ethernet/intel/e1000e/netdev.c | 2 ++
>  1 file changed, 2 insertions(+)

Reviewed-by: Eric Dumazet <edumazet@google.com>

Thanks Greg
Kirsher, Jeffrey T June 16, 2020, 9:20 p.m. UTC | #2
> -----Original Message-----
> From: Eric Dumazet <eric.dumazet@gmail.com>
> On 6/13/20 11:11 PM, Greg Thelen wrote:
> > Commit e086ba2fccda ("e1000e: disable s0ix entry and exit flows for ME
> > systems") added e1000e_check_me() but it's only called from
> > CONFIG_PM_SLEEP protected code.  Thus builds without CONFIG_PM_SLEEP
> > see:
> >   drivers/net/ethernet/intel/e1000e/netdev.c:137:13: warning:
> > 'e1000e_check_me' defined but not used [-Wunused-function]
> >
> > Add CONFIG_PM_SLEEP ifdef guard to avoid dead code.
> >
> > Fixes: e086ba2fccda ("e1000e: disable s0ix entry and exit flows for ME
> > systems")
> > Signed-off-by: Greg Thelen <gthelen@google.com>
> > ---
> >  drivers/net/ethernet/intel/e1000e/netdev.c | 2 ++
> >  1 file changed, 2 insertions(+)
> 
> Reviewed-by: Eric Dumazet <edumazet@google.com>
[Kirsher, Jeffrey T] 

This patch is not necessary, after Arnd's patch.  Here is his patch:
http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20200527134716.948148-1-arnd@arndb.de/
 and I will be pushing it to Dave's net tree later tonight.
diff mbox series

Patch

diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index a279f4fa9962..165f0aea22c9 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -107,6 +107,7 @@  static const struct e1000_reg_info e1000_reg_info_tbl[] = {
 	{0, NULL}
 };
 
+#ifdef CONFIG_PM_SLEEP
 struct e1000e_me_supported {
 	u16 device_id;		/* supported device ID */
 };
@@ -145,6 +146,7 @@  static bool e1000e_check_me(u16 device_id)
 
 	return false;
 }
+#endif /* CONFIG_PM_SLEEP */
 
 /**
  * __ew32_prepare - prepare to write to MAC CSR register on certain parts