In commit 07d2a628bc00 ("powerpc/64s: Avoid cpabort in context switch
when possible") a buffer 'dummy_copy_buffer' was introduced. gcc does
not see this buffer being used in the inline assembly within function
'__switch_to', explicitly marked this variable as being used.Prefer using '__aligned' to get passed line over 80 characters warning in checkpatch. This remove the following warning: arch/powerpc/kernel/process.c:1156:17: error: 'dummy_copy_buffer' defined but not used [-Werror=unused-const-variable=] Cc: Nicholas Piggin <npig...@gmail.com> Signed-off-by: Mathieu Malaterre <ma...@debian.org> --- arch/powerpc/kernel/process.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 77e44275d025..5acf63d45802 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -1153,7 +1153,7 @@ static inline void restore_sprs(struct thread_struct *old_thread, #ifdef CONFIG_PPC_BOOK3S_64 #define CP_SIZE 128 -static const u8 dummy_copy_buffer[CP_SIZE] __attribute__((aligned(CP_SIZE))); +static const u8 dummy_copy_buffer[CP_SIZE] __aligned(CP_SIZE) __used; #endif struct task_struct *__switch_to(struct task_struct *prev, -- 2.20.1
