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crypto: hisilicon/sec2 - Use atomics instead of __sync

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The use of __sync functions for atomic memory access is not
supported in the kernel, and can result in a link error depending
on configuration:

ERROR: "__tsan_atomic32_compare_exchange_strong" [drivers/crypto/hisilicon/sec2/hisi_sec2.ko] undefined!
ERROR: "__tsan_atomic64_fetch_add" [drivers/crypto/hisilicon/sec2/hisi_sec2.ko] undefined!

Use the kernel's own atomic interfaces instead. This way the
debugfs interface actually reads the counter atomically.

Fixes: 416d82204d ("crypto: hisilicon - add HiSilicon SEC V2 driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Arnd Bergmann
2020-01-07 21:08:58 +01:00
committed by Herbert Xu
parent 84faa30724
commit cb1eeb75cf
3 changed files with 21 additions and 11 deletions
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6
drivers/crypto/hisilicon/sec2/sec.h
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@@ -40,7 +40,7 @@ struct sec_req {
int req_id;
/* Status of the SEC request */
int fake_busy;
atomic_t fake_busy;
};
/**
@@ -132,8 +132,8 @@ struct sec_debug_file {
};
struct sec_dfx {
u64 send_cnt;
u64 recv_cnt;
atomic64_t send_cnt;
atomic64_t recv_cnt;
};
struct sec_debug {