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arm: Handle KCOV __init vs inline mismatches 

When KCOV is enabled all functions get instrumented, unless
the __no_sanitize_coverage attribute is used. To prepare for
__no_sanitize_coverage being applied to __init functions, we have to
handle differences in how GCC's inline optimizations get resolved. For
arm this exposed several places where __init annotations were missing
but ended up being "accidentally correct". Fix these cases and force
several functions to be inline with __always_inline.

Acked-by: Nishanth Menon <nm@ti.com>
Acked-by: Lee Jones <lee@kernel.org>
Reviewed-by: Nishanth Menon <nm@ti.com>
Link: https://lore.kernel.org/r/20250717232519.2984886-5-kees@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
This commit is contained in:
Kees Cook 2025-07-17 16:25:10 -07:00
parent d01daf9d95
commit 2424fe1cac
5 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/mm/cache-feroceon-l2.c
View File

@ -295,7 +295,7 @@ static inline u32 read_extra_features(void)
return u;
}
static inline void write_extra_features(u32 u)
static inline void __init write_extra_features(u32 u)
{
__asm__("mcr p15, 1, %0, c15, c1, 0" : : "r" (u));
}

2
arch/arm/mm/cache-tauros2.c
View File

@ -177,7 +177,7 @@ static inline void __init write_actlr(u32 actlr)
__asm__("mcr p15, 0, %0, c1, c0, 1\n" : : "r" (actlr));
}
static void enable_extra_feature(unsigned int features)
static void __init enable_extra_feature(unsigned int features)
{
u32 u;

2
drivers/clocksource/timer-orion.c
View File

@ -43,7 +43,7 @@ static struct delay_timer orion_delay_timer = {
.read_current_timer = orion_read_timer,
};
static void orion_delay_timer_init(unsigned long rate)
static void __init orion_delay_timer_init(unsigned long rate)
{
orion_delay_timer.freq = rate;
register_current_timer_delay(&orion_delay_timer);

2
drivers/soc/ti/pm33xx.c
View File

@ -145,7 +145,7 @@ static int am33xx_do_sram_idle(u32 wfi_flags)
return pm_ops->cpu_suspend(am33xx_do_wfi_sram, wfi_flags);
}
static int __init am43xx_map_gic(void)
static int am43xx_map_gic(void)
{
gic_dist_base = ioremap(AM43XX_GIC_DIST_BASE, SZ_4K);

2
include/linux/mfd/dbx500-prcmu.h
View File

@ -213,7 +213,7 @@ struct prcmu_fw_version {
#if defined(CONFIG_UX500_SOC_DB8500)
static inline void prcmu_early_init(void)
static inline void __init prcmu_early_init(void)
{
db8500_prcmu_early_init();
}