[PATCH 16/52] m68k: amiga: pcmcia: Replace set but not used variable by READ_ONCE()

Geert Uytterhoeven
2023-09-07T16:21:20Z

arch/m68k/amiga/pcmcia.c: In function ‘pcmcia_reset’:
arch/m68k/amiga/pcmcia.c:29:23: warning: variable ‘b’ set but not used [-Wunused-but-set-variable]
29 | unsigned char b;
| ^

Fix this by using READ_ONCE(), and removing the variable.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
arch/m68k/amiga/pcmcia.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/m68k/amiga/pcmcia.c b/arch/m68k/amiga/pcmcia.c
index 7106f0c3639bc105..63cce6b590df4dcb 100644
--- a/arch/m68k/amiga/pcmcia.c
+++ b/arch/m68k/amiga/pcmcia.c
@@ -26,11 +26,10 @@ static unsigned char cfg_byte = GAYLE_CFG_0V|GAYLE_CFG_150NS;
void pcmcia_reset(void)
{
unsigned long reset_start_time = jiffies;
- unsigned char b;

gayle_reset = 0x00;
while (time_before(jiffies, reset_start_time + 1*HZ/100));
- b = gayle_reset;
+ READ_ONCE(gayle_reset);
}
EXPORT_SYMBOL(pcmcia_reset);

--
2.34.1