From dec8b1ca990055f3a8954ac3bc98fdb785af52e4 Mon Sep 17 00:00:00 2001 From: Franck Bui-Huu Date: Mon, 8 Oct 2007 16:11:51 +0200 Subject: [PATCH] [MIPS] Add BUG_ON assertion for attempt to run kernel on the wrong CPU type. Signed-off-by: Ralf Baechle --- arch/mips/kernel/cpu-probe.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 234c7f5005..c8c47a2d19 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -922,6 +922,14 @@ __init void cpu_probe(void) default: c->cputype = CPU_UNKNOWN; } + + /* + * Platform code can force the cpu type to optimize code + * generation. In that case be sure the cpu type is correctly + * manually setup otherwise it could trigger some nasty bugs. + */ + BUG_ON(current_cpu_type() != c->cputype); + if (c->options & MIPS_CPU_FPU) { c->fpu_id = cpu_get_fpu_id(); -- 2.39.5