Thread (10 messages) 10 messages, 2 authors, 2017-08-11

[PATCH 1/9] powerpc/47x: Guard 47x cputable entries with CONFIG_PPC_47x

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From: Michael Ellerman <mpe@ellerman.id.au>
Date: 2017-08-08 06:39:35
Subsystem: linux for powerpc (32-bit and 64-bit), the rest · Maintainers: Madhavan Srinivasan, Linus Torvalds

Currently we build the 47x cputable entries even when CONFIG_PPC_47x is
disabled. That means a kernel built without CONFIG_PPC_47x will claim to
support a 47x CPU and start booting, only to break somewhere later
because it doesn't have 47x support compiled in.

So guard the 47x cputable entries with CONFIG_PPC_47x. Note that this is
inside the #ifdef CONFIG_44x section, because 47x depends on 44x.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
 arch/powerpc/kernel/cputable.c | 2 ++
 1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 6f849832a669..080bf51e0104 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -1936,6 +1936,7 @@ static struct cpu_spec __initdata cpu_specs[] = {
 		.machine_check		= machine_check_440A,
 		.platform		= "ppc440",
 	},
+#ifdef CONFIG_PPC_47x
 	{ /* 476 DD2 core */
 		.pvr_mask		= 0xffffffff,
 		.pvr_value		= 0x11a52080,
@@ -1992,6 +1993,7 @@ static struct cpu_spec __initdata cpu_specs[] = {
 		.machine_check		= machine_check_47x,
 		.platform		= "ppc470",
 	},
+#endif /* CONFIG_PPC_47x */
 	{	/* default match */
 		.pvr_mask		= 0x00000000,
 		.pvr_value		= 0x00000000,
-- 
2.7.4
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