[SRU][F][PATCH 6/9] clocksource/drivers/arm_arch_timer: Do not use timer namespace for timer_shutdown() function

[Massimiliano Pellizzer]

From: "Steven Rostedt (Google)" <rostedt at goodmis.org>

A new "shutdown" timer state is being added to the generic timer code. One
of the functions to change the timer into the state is called
"timer_shutdown()". This means that there can not be other functions
called "timer_shutdown()" as the timer code owns the "timer_*" name space.

Rename timer_shutdown() to arch_timer_shutdown() to avoid this conflict.

Signed-off-by: Steven Rostedt (Google) <rostedt at goodmis.org>
Signed-off-by: Thomas Gleixner <tglx at linutronix.de>
Tested-by: Guenter Roeck <linux at roeck-us.net>
Reviewed-by: Guenter Roeck <linux at roeck-us.net>
Reviewed-by: Jacob Keller <jacob.e.keller at intel.com>
Reviewed-by: Anna-Maria Behnsen <anna-maria at linutronix.de>
Acked-by: Marc Zyngier <maz at kernel.org>
Link: https://lkml.kernel.org/r/20221106212702.002251651@goodmis.org
Link: https://lore.kernel.org/all/20221105060155.409832154@goodmis.org/
Link: https://lore.kernel.org/r/20221110064146.981725531@goodmis.org
Link: https://lore.kernel.org/r/20221123201624.574672568@linutronix.de

(cherry picked from commit 73737a5833ace25a8408b0d3b783637cb6bf29d1)
CVE-2024-35887
Signed-off-by: Massimiliano Pellizzer <massimiliano.pellizzer at canonical.com>
---
 drivers/clocksource/arm_arch_timer.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index ec6f28ed21e2..63bd4e846b2b 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -675,8 +675,8 @@ static irqreturn_t arch_timer_handler_virt_mem(int irq, void *dev_id)
 	return timer_handler(ARCH_TIMER_MEM_VIRT_ACCESS, evt);
 }
 
-static __always_inline int timer_shutdown(const int access,
-					  struct clock_event_device *clk)
+static __always_inline int arch_timer_shutdown(const int access,
+					       struct clock_event_device *clk)
 {
 	unsigned long ctrl;
 
@@ -689,22 +689,22 @@ static __always_inline int timer_shutdown(const int access,
 
 static int arch_timer_shutdown_virt(struct clock_event_device *clk)
 {
-	return timer_shutdown(ARCH_TIMER_VIRT_ACCESS, clk);
+	return arch_timer_shutdown(ARCH_TIMER_VIRT_ACCESS, clk);
 }
 
 static int arch_timer_shutdown_phys(struct clock_event_device *clk)
 {
-	return timer_shutdown(ARCH_TIMER_PHYS_ACCESS, clk);
+	return arch_timer_shutdown(ARCH_TIMER_PHYS_ACCESS, clk);
 }
 
 static int arch_timer_shutdown_virt_mem(struct clock_event_device *clk)
 {
-	return timer_shutdown(ARCH_TIMER_MEM_VIRT_ACCESS, clk);
+	return arch_timer_shutdown(ARCH_TIMER_MEM_VIRT_ACCESS, clk);
 }
 
 static int arch_timer_shutdown_phys_mem(struct clock_event_device *clk)
 {
-	return timer_shutdown(ARCH_TIMER_MEM_PHYS_ACCESS, clk);
+	return arch_timer_shutdown(ARCH_TIMER_MEM_PHYS_ACCESS, clk);
 }
 
 static __always_inline void set_next_event(const int access, unsigned long evt,
-- 
2.43.0