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| author | J. Bruce Fields <bfields@redhat.com> | 2020-05-21 10:58:15 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2020-05-21 10:58:15 -0400 |
| commit | 6670ee2ef219ac9e1c836a277dda0c949ad8b1ff (patch) | |
| tree | 0eee3d97941caab0bc85f93a7653b0cfd4abf51b /include/linux/compiler.h | |
| parent | 746c6237ece641da79df09abcf87bc29f6f9665b (diff) | |
| parent | f2453978a4f2ddb1938fa80e9bf0c9d6252bd5f8 (diff) | |
| download | kernel_replicant_linux-6670ee2ef219ac9e1c836a277dda0c949ad8b1ff.tar.gz kernel_replicant_linux-6670ee2ef219ac9e1c836a277dda0c949ad8b1ff.tar.bz2 kernel_replicant_linux-6670ee2ef219ac9e1c836a277dda0c949ad8b1ff.zip | |
Merge branch 'nfsd-5.8' of git://linux-nfs.org/~cel/cel-2.6 into for-5.8-incoming
Highlights of this series:
* Remove serialization of sending RPC/RDMA Replies
* Convert the TCP socket send path to use xdr_buf::bvecs (pre-requisite for
RPC-on-TLS)
* Fix svcrdma backchannel sendto return code
* Convert a number of dprintk call sites to use tracepoints
* Fix the "suggest braces around empty body in an 'else' statement" warning
Diffstat (limited to 'include/linux/compiler.h')
| -rw-r--r-- | include/linux/compiler.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 034b0a644efc..448c91bf543b 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -356,4 +356,10 @@ static inline void *offset_to_ptr(const int *off) /* &a[0] degrades to a pointer: a different type from an array */ #define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0])) +/* + * This is needed in functions which generate the stack canary, see + * arch/x86/kernel/smpboot.c::start_secondary() for an example. + */ +#define prevent_tail_call_optimization() mb() + #endif /* __LINUX_COMPILER_H */ |