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Subject[PATCH] crypto: user - fix potential warnings in cryptouser.h
Date
Function definitions in headers are usually marked as 'static inline'.

Since 'inline' is missing for crypto_reportstat(), if it were not
referenced from a .c file that includes this header, it would produce
a warning.

Also, 'struct crypto_user_alg' should be forward declared so that
we do not rely on the specific order of header inclusion.

Detected by compile-testing cryptouser.h as a standalone unit:

/include/crypto/internal/cryptouser.h:6:44: warning: ‘struct crypto_user_alg’ declared inside parameter list will not be visible outside of this definition or declaration
struct crypto_alg *crypto_alg_match(struct crypto_user_alg *p, int exact);
^~~~~~~~~~~~~~~
./include/crypto/internal/cryptouser.h:11:12: warning: ‘crypto_reportstat’ defined but not used [-Wunused-function]
static int crypto_reportstat(struct sk_buff *in_skb, struct nlmsghdr *in_nlh, struct nlattr **attrs)
^~~~~~~~~~~~~~~~~

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---

include/crypto/internal/cryptouser.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/crypto/internal/cryptouser.h b/include/crypto/internal/cryptouser.h
index 8c602b187c58..2339cb06dbf8 100644
--- a/include/crypto/internal/cryptouser.h
+++ b/include/crypto/internal/cryptouser.h
@@ -3,12 +3,15 @@

extern struct sock *crypto_nlsk;

+struct crypto_user_alg;
struct crypto_alg *crypto_alg_match(struct crypto_user_alg *p, int exact);

#ifdef CONFIG_CRYPTO_STATS
int crypto_reportstat(struct sk_buff *in_skb, struct nlmsghdr *in_nlh, struct nlattr **attrs);
#else
-static int crypto_reportstat(struct sk_buff *in_skb, struct nlmsghdr *in_nlh, struct nlattr **attrs)
+static inline int crypto_reportstat(struct sk_buff *in_skb,
+ struct nlmsghdr *in_nlh,
+ struct nlattr **attrs)
{
return -ENOTSUPP;
}
--
2.17.1
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