Re: [PATCH AUTOSEL 5.4 03/26] dm integrity: select CRYPTO_SKCIPHER

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On Tue, Jan 19, 2021 at 09:47:31PM -0800, Eric Biggers wrote:
On Tue, Jan 19, 2021 at 08:26:40PM -0500, Sasha Levin wrote:
From: Anthony Iliopoulos <ailiop@xxxxxxxx>

[ Upstream commit f7b347acb5f6c29d9229bb64893d8b6a2c7949fb ]

The integrity target relies on skcipher for encryption/decryption, but
certain kernel configurations may not enable CRYPTO_SKCIPHER, leading to
compilation errors due to unresolved symbols. Explicitly select
CRYPTO_SKCIPHER for DM_INTEGRITY, since it is unconditionally dependent
on it.

Signed-off-by: Anthony Iliopoulos <ailiop@xxxxxxxx>
Signed-off-by: Mike Snitzer <snitzer@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/md/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig
index aa98953f4462e..7dd6e98257c72 100644
--- a/drivers/md/Kconfig
+++ b/drivers/md/Kconfig
@@ -565,6 +565,7 @@ config DM_INTEGRITY
 	select BLK_DEV_INTEGRITY
 	select DM_BUFIO
 	select CRYPTO
+	select CRYPTO_SKCIPHER
 	select ASYNC_XOR
 	---help---
 	  This device-mapper target emulates a block device that has

CRYPTO_SKCIPHER doesn't exist in 5.4 and earlier because it was renamed from
CRYPTO_BLKCIPHER in 5.5.  If this patch is really important enough to backport,
CRYPTO_SKCIPHER will need to be changed to CRYPTO_BLKCIPHER.

I'll just drop it, thanks!

--
Thanks,
Sasha

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