linux-kernel - [PATCH 1/2] powerpc/32s: Rename head_32.S to head_book3s

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Message-Id: <319d379f696412681c66a987cc75e6abf8f958d2.1601975100.git.christophe.leroy@csgroup.eu>
Date:   Tue,  6 Oct 2020 09:05:26 +0000 (UTC)
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH 1/2] powerpc/32s: Rename head_32.S to head_book3s_32.S

Unlike PPC64 which had a single head_64.S, PPC32 are multiple ones.
There is the head_32.S, selected by default based on the value of BITS
and overridden based on some CONFIG_ values. This leads to thinking
that it may be selected by different types of PPC32 platform but
indeed it ends up being selected by book3s/32 only.

Make that explicit by:
- Not doing any default selection based on BITS.
- Renaming head_32.S to head_book3s_32.S.
- Get head_book3s_32.S selected only by CONFIG_PPC_BOOK3S_32.

Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>
---
 arch/powerpc/kernel/Makefile                        | 3 ++-
 arch/powerpc/kernel/{head_32.S => head_book3s_32.S} | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)
 rename arch/powerpc/kernel/{head_32.S => head_book3s_32.S} (99%)

diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index a5550c2b24c4..bf0bf1b900d2 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -95,7 +95,8 @@ obj-$(CONFIG_PPC_FSL_BOOK3E)	+= cpu_setup_fsl_booke.o
 obj-$(CONFIG_PPC_DOORBELL)	+= dbell.o
 obj-$(CONFIG_JUMP_LABEL)	+= jump_label.o
 
-extra-y				:= head_$(BITS).o
+extra-$(CONFIG_PPC64)		:= head_64.o
+extra-$(CONFIG_PPC_BOOK3S_32)	:= head_book3s_32.o
 extra-$(CONFIG_40x)		:= head_40x.o
 extra-$(CONFIG_44x)		:= head_44x.o
 extra-$(CONFIG_FSL_BOOKE)	:= head_fsl_booke.o
diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_book3s_32.S
similarity index 99%
rename from arch/powerpc/kernel/head_32.S
rename to arch/powerpc/kernel/head_book3s_32.S
index 35627693c2a4..e07a2c07ffe4 100644
--- a/arch/powerpc/kernel/head_32.S
+++ b/arch/powerpc/kernel/head_book3s_32.S
@@ -61,7 +61,7 @@
 
 	__HEAD
 	.stabs	"arch/powerpc/kernel/",N_SO,0,0,0f
-	.stabs	"head_32.S",N_SO,0,0,0f
+	.stabs	"head_book3s_32.S",N_SO,0,0,0f
 0:
 _ENTRY(_stext);
 
-- 
2.25.0