This series introduces infrastructure allowing compiler diagnostics to
be disabled or their severity modified for specific pieces of code, with
suitable abstractions to prevent that code from becoming tied to a
specific compiler.
This infrastructure is then used to disable the -Wattribute-alias
warning around syscall definitions, which rely on type mismatches to
sanitize arguments.
Finally PowerPC-specific #pragma's are removed now that the generic code
is handling this.
The series takes Arnd's RFC patches & addresses the review comments they
received. The most notable effect of this series to to avoid warnings &
build failures caused by -Wattribute-alias when compiling the kernel
with GCC 8.
Applies cleanly atop v4.18-rc1.
Thanks,
Paul
Arnd Bergmann (2):
kbuild: add macro for controlling warnings to linux/compiler.h
disable -Wattribute-alias warning for SYSCALL_DEFINEx()
Paul Burton (1):
powerpc: Remove -Wattribute-alias pragmas
arch/powerpc/kernel/pci_32.c | 4 ----
arch/powerpc/kernel/pci_64.c | 4 ----
arch/powerpc/kernel/rtas.c | 4 ----
arch/powerpc/kernel/signal_32.c | 8 --------
arch/powerpc/kernel/signal_64.c | 4 ----
arch/powerpc/kernel/syscalls.c | 4 ----
arch/powerpc/mm/subpage-prot.c | 4 ----
include/linux/compat.h | 8 +++++++-
include/linux/compiler-gcc.h | 27 +++++++++++++++++++++++++++
include/linux/compiler_types.h | 18 ++++++++++++++++++
include/linux/syscalls.h | 4 ++++
11 files changed, 56 insertions(+), 33 deletions(-)
--
2.17.1
