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crypto: user - made crypto_user_stat optional 

Even if CRYPTO_STATS is set to n, some part of CRYPTO_STATS are
compiled.
This patch made all part of crypto_user_stat uncompiled in that case.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Corentin Labbe 2018-11-29 14:42:16 +00:00 committed by Herbert Xu
parent c97e4df573
commit 2ced26078f
4 changed files with 23 additions and 1 deletions
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3
crypto/Makefile
View File

@ -54,7 +54,8 @@ cryptomgr-y := algboss.o testmgr.o
obj-$(CONFIG_CRYPTO_MANAGER2) += cryptomgr.o
obj-$(CONFIG_CRYPTO_USER) += crypto_user.o
crypto_user-y := crypto_user_base.o crypto_user_stat.o
crypto_user-y := crypto_user_base.o
crypto_user-$(CONFIG_CRYPTO_STATS) += crypto_user_stat.o
obj-$(CONFIG_CRYPTO_CMAC) += cmac.o
obj-$(CONFIG_CRYPTO_HMAC) += hmac.o
obj-$(CONFIG_CRYPTO_VMAC) += vmac.o

2
crypto/algapi.c
View File

@ -258,6 +258,7 @@ static struct crypto_larval *__crypto_register_alg(struct crypto_alg *alg)
list_add(&alg->cra_list, &crypto_alg_list);
list_add(&larval->alg.cra_list, &crypto_alg_list);
#ifdef CONFIG_CRYPTO_STATS
atomic_set(&alg->encrypt_cnt, 0);
atomic_set(&alg->decrypt_cnt, 0);
atomic64_set(&alg->encrypt_tlen, 0);
@ -265,6 +266,7 @@ static struct crypto_larval *__crypto_register_alg(struct crypto_alg *alg)
atomic_set(&alg->verify_cnt, 0);
atomic_set(&alg->cipher_err_cnt, 0);
atomic_set(&alg->sign_cnt, 0);
#endif
out:
return larval;

17
include/crypto/internal/cryptouser.h
View File

@ -3,6 +3,23 @@
struct crypto_alg *crypto_alg_match(struct crypto_user_alg *p, int exact);
#ifdef CONFIG_CRYPTO_STATS
int crypto_dump_reportstat(struct sk_buff *skb, struct netlink_callback *cb);
int crypto_reportstat(struct sk_buff *in_skb, struct nlmsghdr *in_nlh, struct nlattr **attrs);
int crypto_dump_reportstat_done(struct netlink_callback *cb);
#else
static int crypto_dump_reportstat(struct sk_buff *skb, struct netlink_callback *cb)
{
return -ENOTSUPP;
}
static int crypto_reportstat(struct sk_buff *in_skb, struct nlmsghdr *in_nlh, struct nlattr **attrs)
{
return -ENOTSUPP;
}
static int crypto_dump_reportstat_done(struct netlink_callback *cb)
{
return -ENOTSUPP;
}
#endif

2
include/linux/crypto.h
View File

@ -515,6 +515,7 @@ struct crypto_alg {
struct module *cra_module;
#ifdef CONFIG_CRYPTO_STATS
union {
atomic_t encrypt_cnt;
atomic_t compress_cnt;
@ -552,6 +553,7 @@ struct crypto_alg {
atomic_t compute_shared_secret_cnt;
};
atomic_t sign_cnt;
#endif /* CONFIG_CRYPTO_STATS */
} CRYPTO_MINALIGN_ATTR;