| Message ID | 20180619201458.4559-1-paul.burton@mips.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Resolve -Wattribute-alias warnings from SYSCALL_DEFINEx() | expand |
2018-06-20 5:14 GMT+09:00 Paul Burton <paul.burton@mips.com>: > 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. Series, applied to linux-kbuild/fixes. (since we need to fix warnings from GCC 8.1) Thanks!
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(-)