From: Michael Ellerman Date: Tue, 15 Dec 2020 01:57:20 +0000 (+1100) Subject: powerpc/32s: Fix cleanup_cpu_mmu_context() compile bug X-Git-Tag: rel_imx_5.10.35_2.0.0-somdevices.0~491^2~245 X-Git-Url: https://git.somdevices.com/?a=commitdiff_plain;h=a3c168082828b2c26d60813aa6da3371adb0fb9d;p=linux.git powerpc/32s: Fix cleanup_cpu_mmu_context() compile bug [ Upstream commit c1bea0a840ac75dca19bc6aa05575a33eb9fd058 ] Currently pmac32_defconfig with SMP=y doesn't build: arch/powerpc/platforms/powermac/smp.c: error: implicit declaration of function 'cleanup_cpu_mmu_context' It would be nice for consistency if all platforms clear mm_cpumask and flush TLBs on unplug, but the TLB invalidation bug described in commit 01b0f0eae081 ("powerpc/64s: Trim offlined CPUs from mm_cpumasks") only applies to 64s and for now we only have the TLB flush code for that platform. So just add an empty version for 32-bit Book3S. Fixes: 01b0f0eae081 ("powerpc/64s: Trim offlined CPUs from mm_cpumasks") Reported-by: Geert Uytterhoeven Signed-off-by: Nicholas Piggin [mpe: Change log based on comments from Nick] Signed-off-by: Michael Ellerman Signed-off-by: Sasha Levin --- diff --git a/arch/powerpc/include/asm/book3s/32/mmu-hash.h b/arch/powerpc/include/asm/book3s/32/mmu-hash.h index 2e277ca0170f..a8982d52f6b1 100644 --- a/arch/powerpc/include/asm/book3s/32/mmu-hash.h +++ b/arch/powerpc/include/asm/book3s/32/mmu-hash.h @@ -94,6 +94,7 @@ typedef struct { } mm_context_t; void update_bats(void); +static inline void cleanup_cpu_mmu_context(void) { }; /* patch sites */ extern s32 patch__hash_page_A0, patch__hash_page_A1, patch__hash_page_A2;