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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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| .. | ||
| .gitignore | ||
| aes-ce-core.S | ||
| aes-ce-glue.c | ||
| aes-cipher-core.S | ||
| aes-cipher-glue.c | ||
| aes-neonbs-core.S | ||
| aes-neonbs-glue.c | ||
| chacha-glue.c | ||
| chacha-neon-core.S | ||
| chacha-scalar-core.S | ||
| crc32-ce-core.S | ||
| crc32-ce-glue.c | ||
| crct10dif-ce-core.S | ||
| crct10dif-ce-glue.c | ||
| curve25519-core.S | ||
| curve25519-glue.c | ||
| ghash-ce-core.S | ||
| ghash-ce-glue.c | ||
| Kconfig | ||
| Makefile | ||
| nh-neon-core.S | ||
| nhpoly1305-neon-glue.c | ||
| poly1305-armv4.pl | ||
| poly1305-core.S_shipped | ||
| poly1305-glue.c | ||
| sha1_glue.c | ||
| sha1_neon_glue.c | ||
| sha1-armv4-large.S | ||
| sha1-armv7-neon.S | ||
| sha1-ce-core.S | ||
| sha1-ce-glue.c | ||
| sha1.h | ||
| sha2-ce-core.S | ||
| sha2-ce-glue.c | ||
| sha256_glue.c | ||
| sha256_glue.h | ||
| sha256_neon_glue.c | ||
| sha256-armv4.pl | ||
| sha256-core.S_shipped | ||
| sha512-armv4.pl | ||
| sha512-core.S_shipped | ||
| sha512-glue.c | ||
| sha512-neon-glue.c | ||
| sha512.h | ||