Re: [PATCH] power: supply: ab8500: remove unused static local variable

From: chenlifu
Date: Tue Aug 16 2022 - 21:58:12 EST


在 2022/7/19 10:27, Tom Rix 写道:
cpp_check reports
[drivers/power/supply/ab8500_chargalg.c:493]: (style) Variable 'ab8500_chargalg_ex_ac_enable_toggle' is assigned a value that is never used.

From inspection, this variable is never used. So remove it.

Fixes: 6c50a08d9dd3 ("power: supply: ab8500: Drop external charger leftovers")
Signed-off-by: Tom Rix <trix@xxxxxxxxxx>
---
drivers/power/supply/ab8500_chargalg.c | 2 --
1 file changed, 2 deletions(-)

diff --git a/drivers/power/supply/ab8500_chargalg.c b/drivers/power/supply/ab8500_chargalg.c
index ae4be553f424..05146d436a6a 100644
--- a/drivers/power/supply/ab8500_chargalg.c
+++ b/drivers/power/supply/ab8500_chargalg.c
@@ -490,8 +490,6 @@ static int ab8500_chargalg_kick_watchdog(struct ab8500_chargalg *di)
static int ab8500_chargalg_ac_en(struct ab8500_chargalg *di, int enable,
int vset_uv, int iset_ua)
{
- static int ab8500_chargalg_ex_ac_enable_toggle;
-
if (!di->ac_chg || !di->ac_chg->ops.enable)
return -ENXIO;


Reviewed-by: Chen Lifu <chenlifu@xxxxxxxxxx>


I can still observe this build error with ARCH=arm, defconfig=allyesconfig in linux-next next-200816:

drivers/power/supply/ab8500_chargalg.c: In function ‘ab8500_chargalg_ac_en’:
drivers/power/supply/ab8500_chargalg.c:493:13: error: unused variable ‘ab8500_chargalg_ex_ac_enable_toggle’ [-Werror=unused-variable]
static int ab8500_chargalg_ex_ac_enable_toggle;
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~