3.18-stable review patch. If anyone has any objections, please let me know.
------------------ From: Andy Lutomirski <[email protected]> commit 1c52d859cb2d417e7216d3e56bb7fea88444cec9 upstream. We support various non-Intel CPUs that don't have the CPUID instruction, so the M486 test was wrong. For now, fix it with a big hammer: handle missing CPUID on all 32-bit CPUs. Reported-by: One Thousand Gnomes <[email protected]> Signed-off-by: Andy Lutomirski <[email protected]> Cc: Juergen Gross <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Brian Gerst <[email protected]> Cc: Matthew Whitehead <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Henrique de Moraes Holschuh <[email protected]> Cc: Andrew Cooper <[email protected]> Cc: Boris Ostrovsky <[email protected]> Cc: xen-devel <[email protected]> Link: http://lkml.kernel.org/r/685bd083a7c036f7769510b6846315b17d6ba71f.1481307769.git.l...@kernel.org Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- arch/x86/include/asm/processor.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -669,7 +669,7 @@ static inline void sync_core(void) { int tmp; -#ifdef CONFIG_M486 +#ifdef CONFIG_X86_32 /* * Do a CPUID if available, otherwise do a jump. The jump * can conveniently enough be the jump around CPUID.
