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authorRabin Vincent <rabinv@axis.com>2017-01-18 14:54:05 +0100
committerHerbert Xu <herbert@gondor.apana.org.au>2017-01-23 22:50:24 +0800
commit76512f2d8ca5e68160f4df0dead5e8e7b4bdb08e (patch)
tree109ded5e183fc740d14be0402f0b74195a5ef7f3 /crypto
parent3bfb2e6b32443841ff90460a78bdefb19f8d61e8 (diff)
downloadlinux-76512f2d8ca5e68160f4df0dead5e8e7b4bdb08e.tar.gz
linux-76512f2d8ca5e68160f4df0dead5e8e7b4bdb08e.tar.xz
crypto: tcrypt - Add debug prints
tcrypt is very tight-lipped when it succeeds, but a bit more feedback would be useful when developing or debugging crypto drivers, especially since even a successful run ends with the module failing to insert. Add a couple of debug prints, which can be enabled with dynamic debug: Before: # insmod tcrypt.ko mode=10 insmod: can't insert 'tcrypt.ko': Resource temporarily unavailable After: # insmod tcrypt.ko mode=10 dyndbg tcrypt: testing ecb(aes) tcrypt: testing cbc(aes) tcrypt: testing lrw(aes) tcrypt: testing xts(aes) tcrypt: testing ctr(aes) tcrypt: testing rfc3686(ctr(aes)) tcrypt: all tests passed insmod: can't insert 'tcrypt.ko': Resource temporarily unavailable Signed-off-by: Rabin Vincent <rabinv@axis.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/tcrypt.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index ae22f05d5936..9a11f3c2bf98 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -22,6 +22,8 @@
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <crypto/aead.h>
#include <crypto/hash.h>
#include <crypto/skcipher.h>
@@ -1010,6 +1012,8 @@ static inline int tcrypt_test(const char *alg)
{
int ret;
+ pr_debug("testing %s\n", alg);
+
ret = alg_test(alg, alg, 0, 0);
/* non-fips algs return -EINVAL in fips mode */
if (fips_enabled && ret == -EINVAL)
@@ -2059,6 +2063,8 @@ static int __init tcrypt_mod_init(void)
if (err) {
printk(KERN_ERR "tcrypt: one or more tests failed!\n");
goto err_free_tv;
+ } else {
+ pr_debug("all tests passed\n");
}
/* We intentionaly return -EAGAIN to prevent keeping the module,