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authorLinus Torvalds <torvalds@linux-foundation.org>2020-06-11 00:46:54 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-11 00:46:54 +0300
commit4152d146ee2169653297e03b9fa2e0f476923959 (patch)
tree94ed306eaacf1ec3baad1f68fd5ab83e658599aa /net
parent78c24f7beeae295cb6dfb4274568f9bcfa92b316 (diff)
parentb398ace5d2ea0b7f00d9f1ce23c647e289c206ca (diff)
downloadlinux-4152d146ee2169653297e03b9fa2e0f476923959.tar.xz
Merge branch 'rwonce/rework' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux
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
Diffstat (limited to 'net')
-rw-r--r--net/netfilter/core.c2
-rw-r--r--net/tls/tls_main.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/net/netfilter/core.c b/net/netfilter/core.c
index 78f046ec506f..3ac7c8c1548d 100644
--- a/net/netfilter/core.c
+++ b/net/netfilter/core.c
@@ -376,7 +376,7 @@ static bool nf_remove_net_hook(struct nf_hook_entries *old,
if (orig_ops[i] != unreg)
continue;
WRITE_ONCE(old->hooks[i].hook, accept_all);
- WRITE_ONCE(orig_ops[i], &dummy_ops);
+ WRITE_ONCE(orig_ops[i], (void *)&dummy_ops);
return true;
}
diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c
index 0e989005bdc2..ec10041c6b7d 100644
--- a/net/tls/tls_main.c
+++ b/net/tls/tls_main.c
@@ -629,7 +629,7 @@ struct tls_context *tls_ctx_create(struct sock *sk)
static void tls_build_proto(struct sock *sk)
{
int ip_ver = sk->sk_family == AF_INET6 ? TLSV6 : TLSV4;
- const struct proto *prot = READ_ONCE(sk->sk_prot);
+ struct proto *prot = READ_ONCE(sk->sk_prot);
/* Build IPv6 TLS whenever the address of tcpv6 _prot changes */
if (ip_ver == TLSV6 &&