From 694a58e29ef27c4c26f103a9decfd053f94dd34c Mon Sep 17 00:00:00 2001
From: Mikko Rapeli <mikko.rapeli@iki.fi>
Date: Tue, 16 Jul 2019 16:28:07 -0700
Subject: [PATCH] uapi linux/coda.h: use __kernel_pid_t for userspace

Part of a patch by Mikko Rapeli, as Arnd Bergman commented on the
original patch.

   pid_t might differ between libc and the kernel, so the kernel
   interface has to use types that the kernel defines.

Link: http://lkml.kernel.org/r/f374a71f4d351bc8c8b3ac18ad7765c88d806d10.1558117389.git.jaharkes@cs.cmu.edu
Signed-off-by: Mikko Rapeli <mikko.rapeli@iki.fi>
Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Fabian Frederick <fabf@skynet.be>
Cc: Sam Protsenko <semen.protsenko@linaro.org>
Cc: Yann Droneaud <ydroneaud@opteya.com>
Cc: Zhouyang Jia <jiazhouyang09@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/uapi/linux/coda.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/uapi/linux/coda.h b/include/uapi/linux/coda.h
index 695fade33c64..ed8cb263e482 100644
--- a/include/uapi/linux/coda.h
+++ b/include/uapi/linux/coda.h
@@ -295,8 +295,8 @@ struct coda_statfs {
 struct coda_in_hdr {
     u_int32_t opcode;
     u_int32_t unique;	    /* Keep multiple outstanding msgs distinct */
-    pid_t pid;
-    pid_t pgid;
+    __kernel_pid_t pid;
+    __kernel_pid_t pgid;
     vuid_t uid;
 };