[PATCH -next] um: Remove duplicate arch.h header

./arch/um/kernel/trap.c: arch.h is included more than once. Reported-by: Abaci Robot Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=19877 Signed-off-by: Jiapeng Chong --- arch/um/kernel/trap.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/um/kernel/trap.c b/arch/um/kernel

[PATCH] um: Use swap() instead of open coding it

Swap is a function interface that provides exchange function. To avoid code duplication, we can use swap function. ./arch/um/os-Linux/sigio.c:81:28-29: WARNING opportunity for swap(). Reported-by: Abaci Robot Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7607 Signed-off-by: Jiapeng