From mboxrd@z Thu Jan 1 00:00:00 1970 From: Suzuki.Poulose@arm.com (Suzuki K. Poulose) Date: Tue, 5 Apr 2016 10:26:50 +0100 Subject: [PATCH] arm64: hw-breakpoint: Remove superfluous SMP function call In-Reply-To: <1459766569-17237-1-git-send-email-anna-maria@linutronix.de> References: <1459766569-17237-1-git-send-email-anna-maria@linutronix.de> Message-ID: <570384DA.6010805@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 04/04/16 11:42, Anna-Maria Gleixner wrote: > Since commit 1cf4f629d9d2 ("cpu/hotplug: Move online calls to > hotplugged cpu") it is ensured that callbacks of CPU_ONLINE and > CPU_DOWN_PREPARE are processed on the hotplugged cpu. Due to this SMP > function calls are no longer required. > > Replace smp_call_function_single() with a direct call of > hw_breakpoint_reset(). To keep the calling convention, interrupts are > explicitely disabled around the call. While you are at it, could you please also fix a similar instance in arch/arm64/kernel/debug-monitors.c: hw_breakpoint_reset_notify() ? Thanks Suzuki