[PATCH 1/4] include: kernel.h: define SSIZE_MAX

Define SSIZE_MAX, the largest value fitting into a variable of type ssize_t.

Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- include/linux/kernel.h | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/include/linux/kernel.h b/include/linux/kernel.h index b88c210065..3e71d61074 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -19,6 +19,9 @@ #ifndef SIZE_MAX #define SIZE_MAX (~(size_t)0) #endif +#ifndef SSIZE_MAX +#define SSIZE_MAX ((ssize_t)(SIZE_MAX >> 1)) +#endif

#define U8_MAX ((u8)~0U) #define S8_MAX ((s8)(U8_MAX>>1)) -- 2.28.0