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| author |   Christophe Leroy <christophe.leroy@c-s.fr> | 2018-05-29 16:06:41 +0000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2018-06-03 20:40:24 +1000 |
| commit | 2479bfc9bc600dcce7f932d52dcfa8d677c41f93 (patch) | |
| tree | 0aa061af467725fa8afe9f54e0a7716a16e6f488 /arch/powerpc/mm | |
| parent | powerpc/64: Fix strncpy() related build failures with GCC 8.1 (diff) | |
| download | linux-dev-2479bfc9bc600dcce7f932d52dcfa8d677c41f93.tar.xz linux-dev-2479bfc9bc600dcce7f932d52dcfa8d677c41f93.zip | |
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/mm')
| -rw-r--r-- | arch/powerpc/mm/subpage-prot.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/mm/subpage-prot.c b/arch/powerpc/mm/subpage-prot.c index 9d16ee251fc0..75cb646a79c3 100644 --- a/arch/powerpc/mm/subpage-prot.c +++ b/arch/powerpc/mm/subpage-prot.c @@ -186,6 +186,9 @@ static void subpage_mark_vma_nohuge(struct mm_struct *mm, unsigned long addr, * in a 2-bit field won't allow writes to a page that is otherwise * write-protected. */ +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wpragmas" +#pragma GCC diagnostic ignored "-Wattribute-alias" SYSCALL_DEFINE3(subpage_prot, unsigned long, addr, unsigned long, len, u32 __user *, map) { @@ -269,3 +272,4 @@ SYSCALL_DEFINE3(subpage_prot, unsigned long, addr, up_write(&mm->mmap_sem); return err; } +#pragma GCC diagnostic pop |