From a7aaa2f26bfd932a654706b19859e7adf802bee2 Mon Sep 17 00:00:00 2001
From: Sandipan Das <sandipan@linux.ibm.com>
Date: Tue, 4 Aug 2020 23:01:37 +0530
Subject: [PATCH] selftests/powerpc: Fix pkey syscall redefinitions
References: bsc#1184934 ltc#191460
Patch-mainline: v5.9-rc1
Git-commit: a7aaa2f26bfd932a654706b19859e7adf802bee2
On distros using older glibc versions, the pkey tests encounter build
failures due to redefinition of the pkey syscall numbers.
For compatibility, commit 743f3544fffb added a wrapper for the
gettid() syscall and included syscall.h if the version of glibc used
is older than 2.30. This leads to different definitions of SYS_pkey_*
as the ones in the pkey test header set numeric constants where as the
ones from syscall.h reuse __NR_pkey_*. The compiler complains about
redefinitions since they are different.
This replaces SYS_pkey_* definitions with __NR_pkey_* such that the
definitions in both syscall.h and pkeys.h are alike. This way, if
syscall.h has to be included for compatibility reasons, builds will
still succeed.
Fixes: 743f3544fffb ("selftests/powerpc: Add wrapper for gettid")
Reported-by: Sachin Sant <sachinp@linux.vnet.ibm.com>
Suggested-by: David Laight <david.laight@aculab.com>
Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/a4956d838bf59b0a71a2553c5ca81131ea8b49b9.1596561758.git.sandipan@linux.ibm.com
Acked-by: Michal Suchanek <msuchanek@suse.de>
---
tools/testing/selftests/powerpc/include/pkeys.h | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/tools/testing/selftests/powerpc/include/pkeys.h b/tools/testing/selftests/powerpc/include/pkeys.h
index 6ba95039a034..3312cb1b058d 100644
--- a/tools/testing/selftests/powerpc/include/pkeys.h
+++ b/tools/testing/selftests/powerpc/include/pkeys.h
@@ -31,9 +31,9 @@
#define SI_PKEY_OFFSET 0x20
-#define SYS_pkey_mprotect 386
-#define SYS_pkey_alloc 384
-#define SYS_pkey_free 385
+#define __NR_pkey_mprotect 386
+#define __NR_pkey_alloc 384
+#define __NR_pkey_free 385
#define PKEY_BITS_PER_PKEY 2
#define NR_PKEYS 32
@@ -62,17 +62,17 @@ void pkey_set_rights(int pkey, unsigned long rights)
int sys_pkey_mprotect(void *addr, size_t len, int prot, int pkey)
{
- return syscall(SYS_pkey_mprotect, addr, len, prot, pkey);
+ return syscall(__NR_pkey_mprotect, addr, len, prot, pkey);
}
int sys_pkey_alloc(unsigned long flags, unsigned long rights)
{
- return syscall(SYS_pkey_alloc, flags, rights);
+ return syscall(__NR_pkey_alloc, flags, rights);
}
int sys_pkey_free(int pkey)
{
- return syscall(SYS_pkey_free, pkey);
+ return syscall(__NR_pkey_free, pkey);
}
int pkeys_unsupported(void)
--
2.26.2