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Message-Id: <20180718022211.6259-20-pasha.tatashin@oracle.com>
Date: Tue, 17 Jul 2018 22:22:05 -0400
From: Pavel Tatashin <pasha.tatashin@...cle.com>
To: steven.sistare@...cle.com, daniel.m.jordan@...cle.com,
linux@...linux.org.uk, schwidefsky@...ibm.com,
heiko.carstens@...ibm.com, john.stultz@...aro.org,
sboyd@...eaurora.org, x86@...nel.org, linux-kernel@...r.kernel.org,
mingo@...hat.com, tglx@...utronix.de, hpa@...or.com,
douly.fnst@...fujitsu.com, peterz@...radead.org, prarit@...hat.com,
feng.tang@...el.com, pmladek@...e.com, gnomes@...rguk.ukuu.org.uk,
linux-s390@...r.kernel.org, pasha.tatashin@...cle.com,
boris.ostrovsky@...cle.com, jgross@...e.com, pbonzini@...hat.com
Subject: [PATCH v14 19/25] ARM/time: remove read_boot_clock64()
read_boot_clock64() is deleted, and replaced with
read_persistent_wall_and_boot_offset().
The default implementation of read_persistent_wall_and_boot_offset()
provides a better fallback than the current stubs for read_boot_clock64()
that arm has with no users, so remove the old code.
Signed-off-by: Pavel Tatashin <pasha.tatashin@...cle.com>
---
arch/arm/include/asm/mach/time.h | 3 +--
arch/arm/kernel/time.c | 15 ++-------------
arch/arm/plat-omap/counter_32k.c | 2 +-
drivers/clocksource/tegra20_timer.c | 2 +-
4 files changed, 5 insertions(+), 17 deletions(-)
diff --git a/arch/arm/include/asm/mach/time.h b/arch/arm/include/asm/mach/time.h
index 0f79e4dec7f9..4ac3a019a46f 100644
--- a/arch/arm/include/asm/mach/time.h
+++ b/arch/arm/include/asm/mach/time.h
@@ -13,7 +13,6 @@
extern void timer_tick(void);
typedef void (*clock_access_fn)(struct timespec64 *);
-extern int register_persistent_clock(clock_access_fn read_boot,
- clock_access_fn read_persistent);
+extern int register_persistent_clock(clock_access_fn read_persistent);
#endif
diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index cf2701cb0de8..078b259ead4e 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -83,29 +83,18 @@ static void dummy_clock_access(struct timespec64 *ts)
}
static clock_access_fn __read_persistent_clock = dummy_clock_access;
-static clock_access_fn __read_boot_clock = dummy_clock_access;
void read_persistent_clock64(struct timespec64 *ts)
{
__read_persistent_clock(ts);
}
-void read_boot_clock64(struct timespec64 *ts)
-{
- __read_boot_clock(ts);
-}
-
-int __init register_persistent_clock(clock_access_fn read_boot,
- clock_access_fn read_persistent)
+int __init register_persistent_clock(clock_access_fn read_persistent)
{
/* Only allow the clockaccess functions to be registered once */
- if (__read_persistent_clock == dummy_clock_access &&
- __read_boot_clock == dummy_clock_access) {
- if (read_boot)
- __read_boot_clock = read_boot;
+ if (__read_persistent_clock == dummy_clock_access) {
if (read_persistent)
__read_persistent_clock = read_persistent;
-
return 0;
}
diff --git a/arch/arm/plat-omap/counter_32k.c b/arch/arm/plat-omap/counter_32k.c
index 2438b96004c1..fcc5bfec8bd1 100644
--- a/arch/arm/plat-omap/counter_32k.c
+++ b/arch/arm/plat-omap/counter_32k.c
@@ -110,7 +110,7 @@ int __init omap_init_clocksource_32k(void __iomem *vbase)
}
sched_clock_register(omap_32k_read_sched_clock, 32, 32768);
- register_persistent_clock(NULL, omap_read_persistent_clock64);
+ register_persistent_clock(omap_read_persistent_clock64);
pr_info("OMAP clocksource: 32k_counter at 32768 Hz\n");
return 0;
diff --git a/drivers/clocksource/tegra20_timer.c b/drivers/clocksource/tegra20_timer.c
index c337a8100a7b..2242a36fc5b0 100644
--- a/drivers/clocksource/tegra20_timer.c
+++ b/drivers/clocksource/tegra20_timer.c
@@ -259,6 +259,6 @@ static int __init tegra20_init_rtc(struct device_node *np)
else
clk_prepare_enable(clk);
- return register_persistent_clock(NULL, tegra_read_persistent_clock64);
+ return register_persistent_clock(tegra_read_persistent_clock64);
}
TIMER_OF_DECLARE(tegra20_rtc, "nvidia,tegra20-rtc", tegra20_init_rtc);
--
2.18.0
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