The following build failure occurs when CONFIG_PPC_64S_HASH_MMU is not set:
arch/powerpc/kernel/setup_64.c: In function ‘setup_per_cpu_areas’:
arch/powerpc/kernel/setup_64.c:811:21: error: ‘mmu_linear_psize’ undeclared (first use in this function); did you mean ‘mmu_virtual_psize’?
811 | if (mmu_linear_psize == MMU_PAGE_4K)
| ^~~~~~~~~~~~~~~~
| mmu_virtual_psize
arch/powerpc/kernel/setup_64.c:811:21: note: each undeclared identifier is reported only once for each function it appears in
Move the declaration of mmu_linear_psize outside of CONFIG_PPC_64S_HASH_MMU
ifdef.
Fixes: 387e220a2e5e (powerpc/64s: Move hash MMU support code under CONFIG_PPC_64S_HASH_MMU)
Reported-by: Erhard F. <[email protected]>
Signed-off-by: Murilo Opsfelder Araujo <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Cc: Fabiano Rosas <[email protected]>
Cc: Nick Child <[email protected]>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215567
---
arch/powerpc/include/asm/book3s/64/mmu.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/book3s/64/mmu.h b/arch/powerpc/include/asm/book3s/64/mmu.h
index ba5b1becf518..006cbec70ffe 100644
--- a/arch/powerpc/include/asm/book3s/64/mmu.h
+++ b/arch/powerpc/include/asm/book3s/64/mmu.h
@@ -202,7 +202,6 @@ static inline struct subpage_prot_table *mm_ctx_subpage_prot(mm_context_t *ctx)
/*
* The current system page and segment sizes
*/
-extern int mmu_linear_psize;
extern int mmu_virtual_psize;
extern int mmu_vmalloc_psize;
extern int mmu_io_psize;
@@ -213,6 +212,7 @@ extern int mmu_io_psize;
#define mmu_virtual_psize MMU_PAGE_4K
#endif
#endif
+extern int mmu_linear_psize;
extern int mmu_vmemmap_psize;
/* MMU initialization */
--
2.35.1