From 0e45a09a1da0872786885c505467aab8fb29b5b4 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Wed, 4 Sep 2024 21:17:06 -0700 Subject: [PATCH] Input: serio - define serio_pause_rx guard to pause and resume serio ports serio_pause_rx() and serio_continue_rx() are usually used together to temporarily stop receiving interrupts/data for a given serio port. Define "serio_pause_rx" guard for this so that the port is always resumed once critical section is over. Example: scoped_guard(serio_pause_rx, elo->serio) { elo->expected_packet = toupper(packet[0]); init_completion(&elo->cmd_done); } Link: https://lore.kernel.org/r/20240905041732.2034348-2-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov --- include/linux/serio.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/linux/serio.h b/include/linux/serio.h index bf2191f253509..69a47674af653 100644 --- a/include/linux/serio.h +++ b/include/linux/serio.h @@ -6,6 +6,7 @@ #define _SERIO_H +#include #include #include #include @@ -161,4 +162,6 @@ static inline void serio_continue_rx(struct serio *serio) spin_unlock_irq(&serio->lock); } +DEFINE_GUARD(serio_pause_rx, struct serio *, serio_pause_rx(_T), serio_continue_rx(_T)) + #endif -- 2.39.5