commit ed0b10722c880d82e5da2a357122f5ae0e53d4db
author Heinrich Schuchardt <xypron.glpk@gmx.de> Sun Aug 23 09:54:44 2020 +0200
committer Heinrich Schuchardt <xypron.glpk@gmx.de> Mon Aug 24 16:37:53 2020 +0200
tree 67113b2505692b356ed58c8e507dca4546d86fab
parent fa63753f86ccf912d2553934ee6aec787030fa8a

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

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index b88c210..3e71d61 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))