Commit af9eef3c authored Jan 20, 2011 by Benjamin Herrenschmidt

powerpc: Pass the right cpu_spec to ->setup_cpu() on 64-bit



When calling setup_cpu() on 64-bit, we pass a pointer to the
cputable entry we have found. This used to be fine when cur_cpu_spec
was a pointer to that entry, but nowadays, we copy the entry into
a separate variable, and we do so before we call the setup_cpu()
callback. That means that any attempt by that callback at patching
the CPU table entry (to adjust CPU features for example) will patch
the wrong table.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

parent b51cbd41

arch/powerpc/kernel/cputable.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -2076,8 +2076,8 @@ static void __init setup_cpu_spec(unsigned long offset, struct cpu_spec *s)
		* pointer on ppc64 and booke as we are running at 0 in real mode
		* on ppc64 and reloc_offset is always 0 on booke.
		*/
		if (s->cpu_setup) {
		s->cpu_setup(offset, s);
		if (t->cpu_setup) {
		t->cpu_setup(offset, t);
		}
		#endif /* CONFIG_PPC64 \|\| CONFIG_BOOKE */
		}