Fix oprofile configuration breakage
PATCH 1/1 Fix oprofile configuration breakage
The cleanup 09cadedbdc01f1a4bea1f427d4fb4642eaa19da9 broke the oprofile configuration for MIPS by allowing oprofile support to be built for kernel models where oprofile doesn't have a chance in hell to work.
Just a dependecy list on a number of architectures is - surprise - broken and should as per past discussions probably in most considered to be broken in most cases. So I introduce a dependency for the oprofile configuration on ARCH_SUPPORTS_OPROFILE.
Signed-off-by Ralf Baechle <[email protected]>
---
Since we're already in -rc4 I try to keep things minimally intrusive and use ARCH_SUPPORTS_OPROFILE only for MIPS for now instead of touching a dozen architectures.
arch/mips/Kconfig | 4 ++++ kernel/Kconfig.instrumentation | 2 +- 2 files changed, 5 insertions(+), 1 deletion(-)
arch/mips/Kconfig +4 -0
@@ -714,6 +714,10 @@ config ARCH_HAS_ILOG2_U64 bool default n +config ARCH_SUPPORTS_OPROFILE + bool + default y if !MIPS_MT_SMTC + config GENERIC_FIND_NEXT_BIT bool default y
kernel/Kconfig.instrumentation +1 -1
@@ -21,7 +21,7 @@ config PROFILING config OPROFILE tristate "OProfile system profiling (EXPERIMENTAL)" depends on PROFILING - depends on (ALPHA || ARM || BLACKFIN || X86_32 || IA64 || M32R || MIPS || PARISC || PPC || S390 || SUPERH || SPARC || X86_64) && !UML + depends on (ARCH_SUPPORTS_OPROFILE || ALPHA || ARM || BLACKFIN || X86_32 || IA64 || M32R || PARISC || PPC || S390 || SUPERH || SPARC || X86_64) && !UML help OProfile is a profiling system capable of profiling the whole system, include the kernel, kernel modules, libraries,