[PATCH] KEYS: asymmetric: Add missing dependency on CRYPTO_SIG

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From: Eric Biggers <ebiggers@xxxxxxxxxx>

Make ASYMMETRIC_PUBLIC_KEY_SUBTYPE select CRYPTO_SIG to avoid build
errors like the following, which were possible with
CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y && CONFIG_CRYPTO_SIG=n:

    ld: vmlinux.o: in function `public_key_verify_signature':
    (.text+0x306280): undefined reference to `crypto_alloc_sig'
    ld: (.text+0x306300): undefined reference to `crypto_sig_set_pubkey'
    ld: (.text+0x306324): undefined reference to `crypto_sig_verify'
    ld: (.text+0x30636c): undefined reference to `crypto_sig_set_privkey'

Fixes: 63ba4d67594a ("KEYS: asymmetric: Use new crypto interface without scatterlists")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
---
 crypto/asymmetric_keys/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/crypto/asymmetric_keys/Kconfig b/crypto/asymmetric_keys/Kconfig
index 59ec726b7c77..3f089abd6fc9 100644
--- a/crypto/asymmetric_keys/Kconfig
+++ b/crypto/asymmetric_keys/Kconfig
@@ -13,10 +13,11 @@ if ASYMMETRIC_KEY_TYPE
 config ASYMMETRIC_PUBLIC_KEY_SUBTYPE
 	tristate "Asymmetric public-key crypto algorithm subtype"
 	select MPILIB
 	select CRYPTO_HASH_INFO
 	select CRYPTO_AKCIPHER
+	select CRYPTO_SIG
 	select CRYPTO_HASH
 	help
 	  This option provides support for asymmetric public key type handling.
 	  If signature generation and/or verification are to be used,
 	  appropriate hash algorithms (such as SHA-1) must be available.

base-commit: ed30a4a51bb196781c8058073ea720133a65596f
-- 
2.44.0





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