From 2479bfc9bc600dcce7f932d52dcfa8d677c41f93 Mon Sep 17 00:00:00 2001 From: Christophe Leroy Date: Tue, 29 May 2018 16:06:41 +0000 Subject: 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 [mpe: Trim change log] Signed-off-by: Michael Ellerman --- arch/powerpc/kernel/rtas.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/powerpc/kernel/rtas.c') diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c index 8afd146bc9c7..7fb9f83dcde8 100644 --- a/arch/powerpc/kernel/rtas.c +++ b/arch/powerpc/kernel/rtas.c @@ -1051,6 +1051,9 @@ struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log, } /* We assume to be passed big endian arguments */ +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wpragmas" +#pragma GCC diagnostic ignored "-Wattribute-alias" SYSCALL_DEFINE1(rtas, struct rtas_args __user *, uargs) { struct rtas_args args; @@ -1137,6 +1140,7 @@ SYSCALL_DEFINE1(rtas, struct rtas_args __user *, uargs) return 0; } +#pragma GCC diagnostic pop /* * Call early during boot, before mem init, to retrieve the RTAS -- cgit v1.2.3