powerpc: Fix build by disabling attribute-alias warning for SYSCALL_DEFINEx

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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>

...

This commit is contained in:

Christophe Leroy 2018-05-29 16:06:41 +00:00 • committed by Michael Ellerman

parent c959988118

commit 2479bfc9bc

6 changed files with 28 additions and 0 deletions

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4

arch/powerpc/kernel/pci_64.c

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4

arch/powerpc/kernel/rtas.c

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8

arch/powerpc/kernel/signal_32.c

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4

arch/powerpc/kernel/signal_64.c

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4

arch/powerpc/kernel/syscalls.c

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4

arch/powerpc/mm/subpage-prot.c

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