Messages in this thread Patch in this message | | | From | Yue Haibing <> | Subject | [PATCH v2] iov_iter: Fix build error without CONFIG_CRYPTO | Date | Thu, 4 Apr 2019 10:31:14 +0800 |
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From: YueHaibing <yuehaibing@huawei.com>
If CONFIG_CRYPTO is not set or set to m, gcc building warn this:
lib/iov_iter.o: In function `hash_and_copy_to_iter': iov_iter.c:(.text+0x9129): undefined reference to `crypto_stats_get' iov_iter.c:(.text+0x9152): undefined reference to `crypto_stats_ahash_update'
Reported-by: Hulk Robot <hulkci@huawei.com> Fixes: d05f443554b3 ("iov_iter: introduce hash_and_copy_to_iter helper") Suggested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: YueHaibing <yuehaibing@huawei.com> --- --- lib/iov_iter.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/lib/iov_iter.c b/lib/iov_iter.c index 50e77ec..f74fa83 100644 --- a/lib/iov_iter.c +++ b/lib/iov_iter.c @@ -1531,6 +1531,7 @@ EXPORT_SYMBOL(csum_and_copy_to_iter); size_t hash_and_copy_to_iter(const void *addr, size_t bytes, void *hashp, struct iov_iter *i) { +#ifdef CONFIG_CRYPTO struct ahash_request *hash = hashp; struct scatterlist sg; size_t copied; @@ -1540,6 +1541,9 @@ size_t hash_and_copy_to_iter(const void *addr, size_t bytes, void *hashp, ahash_request_set_crypt(hash, &sg, NULL, copied); crypto_ahash_update(hash); return copied; +#else + return 0; +#endif } EXPORT_SYMBOL(hash_and_copy_to_iter); -- 2.7.4
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