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| author | Arnd Bergmann <arnd@arndb.de> | 2018-10-02 22:57:46 +0200 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@hammerspace.com> | 2018-10-05 09:32:37 -0400 |
| commit | 21924765862a0871908a35cb0e53e2e1c169b888 (patch) | |
| tree | a0a212a1bda8125bb93bfb9fe33bacf2349018bf /net/sunrpc | |
| parent | c7944ebb9ce9461079659e9e6ec5baaf73724b3b (diff) | |
| download | linux-21924765862a0871908a35cb0e53e2e1c169b888.tar.bz2 | |
SUNRPC: use cmpxchg64() in gss_seq_send64_fetch_and_inc()
The newly introduced gss_seq_send64_fetch_and_inc() fails to build on
32-bit architectures:
net/sunrpc/auth_gss/gss_krb5_seal.c:144:14: note: in expansion of macro 'cmpxchg'
seq_send = cmpxchg(&ctx->seq_send64, old, old + 1);
^~~~~~~
arch/x86/include/asm/cmpxchg.h:128:3: error: call to '__cmpxchg_wrong_size' declared with attribute error: Bad argument size for cmpxchg
__cmpxchg_wrong_size(); \
As the message tells us, cmpxchg() cannot be used on 64-bit arguments,
that's what cmpxchg64() does.
Fixes: 571ed1fd2390 ("SUNRPC: Replace krb5_seq_lock with a lockless scheme")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'net/sunrpc')
| -rw-r--r-- | net/sunrpc/auth_gss/gss_krb5_seal.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sunrpc/auth_gss/gss_krb5_seal.c b/net/sunrpc/auth_gss/gss_krb5_seal.c index 0ffb797b92e5..54e41c01edb7 100644 --- a/net/sunrpc/auth_gss/gss_krb5_seal.c +++ b/net/sunrpc/auth_gss/gss_krb5_seal.c @@ -141,7 +141,7 @@ gss_seq_send64_fetch_and_inc(struct krb5_ctx *ctx) do { old = seq_send; - seq_send = cmpxchg(&ctx->seq_send64, old, old + 1); + seq_send = cmpxchg64(&ctx->seq_send64, old, old + 1); } while (old != seq_send); return seq_send; } |