Commit 1c52d859 authored by Andy Lutomirski's avatar Andy Lutomirski Committed by Thomas Gleixner

x86/asm/32: Make sync_core() handle missing CPUID on all 32-bit kernels

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: default avatarOne Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>
Signed-off-by: default avatarAndy Lutomirski <luto@kernel.org>
Cc: Juergen Gross <jgross@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Matthew Whitehead <tedheadster@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: xen-devel <Xen-devel@lists.xen.org>
Link: http://lkml.kernel.org/r/685bd083a7c036f7769510b6846315b17d6ba71f.1481307769.git.luto@kernel.orgSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 3df8d920
...@@ -607,7 +607,7 @@ static inline void sync_core(void) ...@@ -607,7 +607,7 @@ static inline void sync_core(void)
{ {
int tmp; int tmp;
#ifdef CONFIG_M486 #ifdef CONFIG_X86_32
/* /*
* Do a CPUID if available, otherwise do a jump. The jump * Do a CPUID if available, otherwise do a jump. The jump
* can conveniently enough be the jump around CPUID. * can conveniently enough be the jump around CPUID.
......
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