[PATCH] mk68k: Fix broken THREAD_SIZE_ORDER

Current THREAD_SIZE_ORDER implementation for m68k is incorrect, fix it by ilog2().

Fixes: cddafa3500fd ("m68k/m68knommu: merge MMU and non-MMU thread_info.h") Signed-off-by: Dawei Li dawei.li@shingroup.cn Cc: stable@vger.kernel.org --- arch/m68k/include/asm/thread_info.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/m68k/include/asm/thread_info.h b/arch/m68k/include/asm/thread_info.h index 31be2ad999ca..50faecd6fc5f 100644 --- a/arch/m68k/include/asm/thread_info.h +++ b/arch/m68k/include/asm/thread_info.h @@ -19,7 +19,8 @@ #else #define THREAD_SIZE PAGE_SIZE #endif -#define THREAD_SIZE_ORDER ((THREAD_SIZE / PAGE_SIZE) - 1) + +#define THREAD_SIZE_ORDER ilog2(THREAD_SIZE / PAGE_SIZE)

#ifndef __ASSEMBLY__