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ARM: at91: unused variable in at91_pm_verify_clocks

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The code using the variable 'i' in this function is conditional which
results in a harmless compiler warning. Using the IS_ENABLED macro
instead of #ifdef makes the code look nicer and gets rid of the
warning.

Without this patch, building at91sam9263_defconfig results in:

/home/arnd/linux-arm/arch/arm/mach-at91/pm.c: In function 'at91_pm_verify_clocks':
/home/arnd/linux-arm/arch/arm/mach-at91/pm.c:137:6: warning: unused variable 'i' [-Wunused-variable]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
This commit is contained in:
Arnd Bergmann 2012-04-30 13:00:32 +00:00
parent ac09281a02
commit 9e0e4e1162
1 changed files with 3 additions and 2 deletions
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5
arch/arm/mach-at91/pm.c
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@ -153,7 +153,9 @@ static int at91_pm_verify_clocks(void)
}
}
#ifdef CONFIG_AT91_PROGRAMMABLE_CLOCKS
if (!IS_ENABLED(CONFIG_AT91_PROGRAMMABLE_CLOCKS))
return 1;
/* PCK0..PCK3 must be disabled, or configured to use clk32k */
for (i = 0; i < 4; i++) {
u32 css;
@ -167,7 +169,6 @@ static int at91_pm_verify_clocks(void)
return 0;
}
}
#endif
return 1;
}