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authorChristophe Leroy <christophe.leroy@c-s.fr>2018-05-29 16:06:41 +0000
committerMichael Ellerman <mpe@ellerman.id.au>2018-06-03 20:40:24 +1000
commit2479bfc9bc600dcce7f932d52dcfa8d677c41f93 (patch)
tree0aa061af467725fa8afe9f54e0a7716a16e6f488 /arch/powerpc/kernel/syscalls.c
parentc95998811807d897ca112ea62d66716ed733d058 (diff)
downloadlinux-2479bfc9bc600dcce7f932d52dcfa8d677c41f93.tar.bz2
powerpc: Fix build by disabling attribute-alias warning for SYSCALL_DEFINEx
GCC 8.1 emits warnings such as the following. As arch/powerpc code is built with -Werror, this breaks the build with GCC 8.1. In file included from arch/powerpc/kernel/pci_64.c:23: ./include/linux/syscalls.h:233:18: error: 'sys_pciconfig_iobase' alias between functions of incompatible types 'long int(long int, long unsigned int, long unsigned int)' and 'long int(long int, long int, long int)' [-Werror=attribute-alias] asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ ^~~ ./include/linux/syscalls.h:222:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) This patch inhibits those warnings. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> [mpe: Trim change log] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/syscalls.c')
-rw-r--r--arch/powerpc/kernel/syscalls.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/syscalls.c b/arch/powerpc/kernel/syscalls.c
index 466216506eb2..083fa06962fd 100644
--- a/arch/powerpc/kernel/syscalls.c
+++ b/arch/powerpc/kernel/syscalls.c
@@ -62,6 +62,9 @@ out:
return ret;
}
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpragmas"
+#pragma GCC diagnostic ignored "-Wattribute-alias"
SYSCALL_DEFINE6(mmap2, unsigned long, addr, size_t, len,
unsigned long, prot, unsigned long, flags,
unsigned long, fd, unsigned long, pgoff)
@@ -75,6 +78,7 @@ SYSCALL_DEFINE6(mmap, unsigned long, addr, size_t, len,
{
return do_mmap2(addr, len, prot, flags, fd, offset, PAGE_SHIFT);
}
+#pragma GCC diagnostic pop
#ifdef CONFIG_PPC32
/*