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ARM: s3c64xx: Annotate external clock frequencies __ro_after_init 

The xtal_f and xusbxti_f static variables are modified only through
__init accessors (like s3c64xx_set_xtal_freq()).  Later these variables
are used only in read-only way so we can mark them __ro_after_init to
increase code safeness.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
This commit is contained in:
Krzysztof Kozlowski 2016-12-10 15:47:35 +02:00
parent f3c7bfd738
commit 552146b0c2
1 changed files with 2 additions and 1 deletions
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3
arch/arm/mach-s3c64xx/common.c
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@ -56,7 +56,8 @@
#include "watchdog-reset.h"
/* External clock frequency */
static unsigned long xtal_f = 12000000, xusbxti_f = 48000000;
static unsigned long xtal_f __ro_after_init = 12000000;
static unsigned long xusbxti_f __ro_after_init = 48000000;
void __init s3c64xx_set_xtal_freq(unsigned long freq)
{