Fixes an oops when calling the shared-processor spinlock implementation from a non-SP LPAR. Also take this opportunity to refactor SHARED_PROCESSOR a bit.
Reference: https://github.com/linuxppc/issues/issues/229 Changes since v3: - Replace CONFIG_BOOK3S #ifdef with CONFIG_PPC_PSERIES in is_shared_processor() to fix compile error reported by 0day-ci Changes since v2: - Directly call splpar_*_yield() to avoid duplicate call to is_shared_processor() in some cases Changes since v1: - Improve comment wording to make it clear why the BOOK3S #ifdef is required in is_shared_processor() in spinlock.h - Replace empty #define of splpar_*_yield() with actual functions with empty bodies Christopher M. Riedl (3): powerpc/spinlocks: Refactor SHARED_PROCESSOR powerpc/spinlocks: Rename SPLPAR-only spinlocks powerpc/spinlocks: Fix oops in shared-processor spinlocks arch/powerpc/include/asm/spinlock.h | 62 +++++++++++++++++++++-------- arch/powerpc/lib/locks.c | 6 +-- 2 files changed, 48 insertions(+), 20 deletions(-) -- 2.22.0
