diff mbox series

[v2] powerpc/ptdump: don't entirely rebuild kernel when selecting CONFIG_PPC_DEBUG_WX

Message ID bf34fd9dca61eadf9a134a9f89ebbc162cfd5f86.1578986011.git.christophe.leroy@c-s.fr (mailing list archive)
State Accepted
Commit 1e1c8b2cc37afb333c1829e8e0360321813bf220
Headers show
Series [v2] powerpc/ptdump: don't entirely rebuild kernel when selecting CONFIG_PPC_DEBUG_WX | expand

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Context Check Description
snowpatch_ozlabs/apply_patch success Successfully applied on branch powerpc/merge (20862247a368dbb75d6e97d82345999adaacf3cc)
snowpatch_ozlabs/build-ppc64le success Build succeeded
snowpatch_ozlabs/build-ppc64be success Build succeeded
snowpatch_ozlabs/build-ppc64e success Build succeeded
snowpatch_ozlabs/build-pmac32 success Build succeeded
snowpatch_ozlabs/checkpatch success total: 0 errors, 0 warnings, 0 checks, 29 lines checked
snowpatch_ozlabs/needsstable success Patch has no Fixes tags

Commit Message

Christophe Leroy Jan. 14, 2020, 7:14 a.m. UTC
Selecting CONFIG_PPC_DEBUG_WX only impacts ptdump and pgtable_32/64
init calls. Declaring related functions in asm/pgtable.h implies
rebuilding almost everything.

Move ptdump_check_wx() declaration in mm/mmu_decl.h

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
---
v2: use mm/mmu_decl.h instead of a new asm/ptdump.h
---
 arch/powerpc/include/asm/pgtable.h | 6 ------
 arch/powerpc/mm/mmu_decl.h         | 6 ++++++
 arch/powerpc/mm/ptdump/ptdump.c    | 2 ++
 3 files changed, 8 insertions(+), 6 deletions(-)

Comments

Michael Ellerman Jan. 29, 2020, 5:17 a.m. UTC | #1
On Tue, 2020-01-14 at 07:14:40 UTC, Christophe Leroy wrote:
> Selecting CONFIG_PPC_DEBUG_WX only impacts ptdump and pgtable_32/64
> init calls. Declaring related functions in asm/pgtable.h implies
> rebuilding almost everything.
> 
> Move ptdump_check_wx() declaration in mm/mmu_decl.h
> 
> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/1e1c8b2cc37afb333c1829e8e0360321813bf220

cheers
diff mbox series

Patch

diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
index 0e4ec8cc37b7..8cc543ed114c 100644
--- a/arch/powerpc/include/asm/pgtable.h
+++ b/arch/powerpc/include/asm/pgtable.h
@@ -94,12 +94,6 @@  void mark_initmem_nx(void);
 static inline void mark_initmem_nx(void) { }
 #endif
 
-#ifdef CONFIG_PPC_DEBUG_WX
-void ptdump_check_wx(void);
-#else
-static inline void ptdump_check_wx(void) { }
-#endif
-
 /*
  * When used, PTE_FRAG_NR is defined in subarch pgtable.h
  * so we are sure it is included when arriving here.
diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h
index 8e99649c24fc..7097e07a209a 100644
--- a/arch/powerpc/mm/mmu_decl.h
+++ b/arch/powerpc/mm/mmu_decl.h
@@ -181,3 +181,9 @@  void mmu_mark_rodata_ro(void);
 static inline void mmu_mark_initmem_nx(void) { }
 static inline void mmu_mark_rodata_ro(void) { }
 #endif
+
+#ifdef CONFIG_PPC_DEBUG_WX
+void ptdump_check_wx(void);
+#else
+static inline void ptdump_check_wx(void) { }
+#endif
diff --git a/arch/powerpc/mm/ptdump/ptdump.c b/arch/powerpc/mm/ptdump/ptdump.c
index 2f9ddc29c535..4af0d5d9589e 100644
--- a/arch/powerpc/mm/ptdump/ptdump.c
+++ b/arch/powerpc/mm/ptdump/ptdump.c
@@ -24,6 +24,8 @@ 
 #include <asm/page.h>
 #include <asm/pgalloc.h>
 
+#include <mm/mmu_decl.h>
+
 #include "ptdump.h"
 
 /*