sbrk() assumes ptrdiff_t is large enough to enlarge/shrink the heap by LONG_MIN/LONG_MAX. So, use the long type, also to match the rest of the Linux ecosystem.
Signed-off-by: Richard Weinberger <rich...@nod.at> --- arch/x86/include/asm/posix_types.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/include/asm/posix_types.h b/arch/x86/include/asm/posix_types.h index dbcea7f47f..e1ed9bcabc 100644 --- a/arch/x86/include/asm/posix_types.h +++ b/arch/x86/include/asm/posix_types.h @@ -20,11 +20,12 @@ typedef unsigned short __kernel_gid_t; #if defined(__x86_64__) typedef unsigned long __kernel_size_t; typedef long __kernel_ssize_t; +typedef long __kernel_ptrdiff_t; #else typedef unsigned int __kernel_size_t; typedef int __kernel_ssize_t; -#endif typedef int __kernel_ptrdiff_t; +#endif typedef long __kernel_time_t; typedef long __kernel_suseconds_t; typedef long __kernel_clock_t; -- 2.35.3
