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authorMarc Zyngier <marc.zyngier@arm.com>2019-04-08 17:49:06 +0200
committerWill Deacon <will.deacon@arm.com>2019-04-30 17:11:47 +0200
commita862fc2254bdbcee3b5da4f730984e5d8393a2f1 (patch)
tree2ffc91823d98d9631237995c9ef7866de5eb0edb /arch
parentclocksource/arm_arch_timer: Drop use of static key in arch_timer_reg_read_stable (diff)
downloadlinux-a862fc2254bdbcee3b5da4f730984e5d8393a2f1.tar.xz
linux-a862fc2254bdbcee3b5da4f730984e5d8393a2f1.zip
clocksource/arm_arch_timer: Remove use of workaround static key
The use of a static key in a hotplug path has proved to be a real nightmare, and makes it impossible to have scream-free lockdep kernel. Let's remove the static key altogether, and focus on something saner. Acked-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm64/include/asm/arch_timer.h4
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/arm64/include/asm/arch_timer.h b/arch/arm64/include/asm/arch_timer.h
index 4a06d46def7e..5502ea049b63 100644
--- a/arch/arm64/include/asm/arch_timer.h
+++ b/arch/arm64/include/asm/arch_timer.h
@@ -45,13 +45,9 @@
(__wa && __wa->h) ? __wa->h : arch_timer_##h; \
})
-extern struct static_key_false arch_timer_read_ool_enabled;
-#define needs_unstable_timer_counter_workaround() \
- static_branch_unlikely(&arch_timer_read_ool_enabled)
#else
#define has_erratum_handler(h) false
#define erratum_handler(h) (arch_timer_##h)
-#define needs_unstable_timer_counter_workaround() false
#endif
enum arch_timer_erratum_match_type {