This is a note to let you know that I've just added the patch titled um: remove ARCH_NO_PREEMPT_DYNAMIC to the 6.11-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: um-remove-arch_no_preempt_dynamic.patch and it can be found in the queue-6.11 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit a601cb80ed9ff5a4e8e1da52751d124aa9131aad Author: Johannes Berg <johannes.berg@xxxxxxxxx> Date: Tue Jul 23 14:24:56 2024 +0200 um: remove ARCH_NO_PREEMPT_DYNAMIC [ Upstream commit 64dcf0b8779363ca07dfb5649a4cc71f9fdf390b ] There's no such symbol and we currently don't have any of the mechanisms to make boot-time selection cheap enough, so we can't have HAVE_PREEMPT_DYNAMIC_CALL or HAVE_PREEMPT_DYNAMIC_KEY. Remove the select statement. Reported-by: Lukas Bulwahn <lbulwahn@xxxxxxxxxx> Fixes: cd01672d64a3 ("um: Enable preemption in UML") Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> Signed-off-by: Richard Weinberger <richard@xxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/arch/um/Kconfig b/arch/um/Kconfig index dca84fd6d00a5..c89575d05021f 100644 --- a/arch/um/Kconfig +++ b/arch/um/Kconfig @@ -11,7 +11,6 @@ config UML select ARCH_HAS_KCOV select ARCH_HAS_STRNCPY_FROM_USER select ARCH_HAS_STRNLEN_USER - select ARCH_NO_PREEMPT_DYNAMIC select HAVE_ARCH_AUDITSYSCALL select HAVE_ARCH_KASAN if X86_64 select HAVE_ARCH_KASAN_VMALLOC if HAVE_ARCH_KASAN