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* [PATCH AUTOSEL 5.10] sched/isolation: Make CONFIG_CPU_ISOLATION depend on CONFIG_SMP
@ 2025-04-08  0:54 Sasha Levin
  0 siblings, 0 replies; only message in thread
From: Sasha Levin @ 2025-04-08  0:54 UTC (permalink / raw)
  To: linux-kernel, stable
  Cc: Oleg Nesterov, kernel test robot, Ingo Molnar, Sasha Levin,
	ojeda, aliceryhl, akpm, tj, masahiroy, mmaurer, yoann.congal,
	jeffxu, roman.gushchin, chenridong, axboe, jannh, mark.rutland,
	brgerst, vincent.guittot

From: Oleg Nesterov <oleg@redhat.com>

[ Upstream commit 975776841e689dd8ba36df9fa72ac3eca3c2957a ]

kernel/sched/isolation.c obviously makes no sense without CONFIG_SMP, but
the Kconfig entry we have right now:

	config CPU_ISOLATION
		bool "CPU isolation"
		depends on SMP || COMPILE_TEST

allows the creation of pointless .config's which cause
build failures.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20250330134955.GA7910@redhat.com

Closes: https://lore.kernel.org/oe-kbuild-all/202503260646.lrUqD3j5-lkp@intel.com/
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 init/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/init/Kconfig b/init/Kconfig
index 9807c66b24bb6..d9dd8cbe99b11 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -656,7 +656,7 @@ endmenu # "CPU/Task time and stats accounting"
 
 config CPU_ISOLATION
 	bool "CPU isolation"
-	depends on SMP || COMPILE_TEST
+	depends on SMP
 	default y
 	help
 	  Make sure that CPUs running critical tasks are not disturbed by
-- 
2.39.5


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2025-04-08  0:54 [PATCH AUTOSEL 5.10] sched/isolation: Make CONFIG_CPU_ISOLATION depend on CONFIG_SMP Sasha Levin

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