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Even the original patch dating back to 2008, aab46da0520a ("cpumask: Add CONFIG_CPUMASK_OFFSTACK") didn't give any rationale for such dependency. Nowhere in the code supports the presumption that DEBUG_PER_CPU_MAPS is necessary for CONFIG_CPUMASK_OFFSTACK. Make no mistake, it's good to have DEBUG_PER_CPU_MAPS for debugging purpose or precaution, but it's simply not a hard requirement for CPUMASK_OFFSTACK. Moreover, x86 Kconfig already can set CPUMASK_OFFSTACK=y without DEBUG_PER_CPU_MAPS=y. There is no reason other architectures cannot given the fact that they have even fewer, if any, arch-specific CONFIG_DEBUG_PER_CPU_MAPS code than x86. Signed-off-by: Libo Chen --- lib/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/Kconfig b/lib/Kconfig index 087e06b4cdfd..7209039dfb59 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -511,7 +511,7 @@ config CHECK_SIGNATURE bool config CPUMASK_OFFSTACK - bool "Force CPU masks off stack" if DEBUG_PER_CPU_MAPS + bool "Force CPU masks off stack" help Use dynamic allocation for cpumask_var_t, instead of putting them on the stack. This is a bit more expensive, but avoids -- 2.27.0