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4152d146ee
Pull READ/WRITE_ONCE rework from Will Deacon:
"This the READ_ONCE rework I've been working on for a while, which
bumps the minimum GCC version and improves code-gen on arm64 when
stack protector is enabled"
[ Side note: I'm _really_ tempted to raise the minimum gcc version to
4.9, so that we can just say that we require _Generic() support.
That would allow us to more cleanly handle a lot of the cases where we
depend on very complex macros with 'sizeof' or __builtin_choose_expr()
with __builtin_types_compatible_p() etc.
This branch has a workaround for sparse not handling _Generic(),
either, but that was already fixed in the sparse development branch,
so it's really just gcc-4.9 that we'd require. - Linus ]
* 'rwonce/rework' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux:
compiler_types.h: Use unoptimized __unqual_scalar_typeof for sparse
compiler_types.h: Optimize __unqual_scalar_typeof compilation time
compiler.h: Enforce that READ_ONCE_NOCHECK() access size is sizeof(long)
compiler-types.h: Include naked type in __pick_integer_type() match
READ_ONCE: Fix comment describing 2x32-bit atomicity
gcov: Remove old GCC 3.4 support
arm64: barrier: Use '__unqual_scalar_typeof' for acquire/release macros
locking/barriers: Use '__unqual_scalar_typeof' for load-acquire macros
READ_ONCE: Drop pointer qualifiers when reading from scalar types
READ_ONCE: Enforce atomicity for {READ,WRITE}_ONCE() memory accesses
READ_ONCE: Simplify implementations of {READ,WRITE}_ONCE()
arm64: csum: Disable KASAN for do_csum()
fault_inject: Don't rely on "return value" from WRITE_ONCE()
net: tls: Avoid assigning 'const' pointer to non-const pointer
netfilter: Avoid assigning 'const' pointer to non-const pointer
compiler/gcc: Raise minimum GCC version for kernel builds to 4.8
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| .. | ||
| 1.Intro.rst | ||
| 2.Process.rst | ||
| 3.Early-stage.rst | ||
| 4.Coding.rst | ||
| 5.Posting.rst | ||
| 6.Followthrough.rst | ||
| 7.AdvancedTopics.rst | ||
| 8.Conclusion.rst | ||
| adding-syscalls.rst | ||
| applying-patches.rst | ||
| botching-up-ioctls.rst | ||
| changes.rst | ||
| clang-format.rst | ||
| code-of-conduct-interpretation.rst | ||
| code-of-conduct.rst | ||
| coding-style.rst | ||
| deprecated.rst | ||
| development-process.rst | ||
| email-clients.rst | ||
| embargoed-hardware-issues.rst | ||
| howto.rst | ||
| index.rst | ||
| kernel-docs.rst | ||
| kernel-driver-statement.rst | ||
| kernel-enforcement-statement.rst | ||
| license-rules.rst | ||
| magic-number.rst | ||
| maintainer-pgp-guide.rst | ||
| maintainers.rst | ||
| management-style.rst | ||
| programming-language.rst | ||
| stable-api-nonsense.rst | ||
| stable-kernel-rules.rst | ||
| submit-checklist.rst | ||
| submitting-drivers.rst | ||
| submitting-patches.rst | ||
| unaligned-memory-access.rst | ||
| volatile-considered-harmful.rst | ||