linux-kernel - [PATCH 1/2] block: add bi_crypto

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Message-ID: <20181211095001.GA32573@lvlogina.cadence.com>
Date:   Tue, 11 Dec 2018 09:50:01 +0000
From:   Parshuram Thombare <pthombar@...ence.com>
To:     <axboe@...nel.dk>, <tj@...nel.org>, <jbacik@...com>,
        <michaelcallahan@...com>, <snitzer@...hat.com>, <osandov@...com>,
        <keith.busch@...el.com>, <ming.lei@...hat.com>, <shli@...com>,
        <dennisszhou@...il.com>, <linux-kernel@...r.kernel.org>
CC:     <adouglas@...ence.com>, <jank@...ence.com>, <rafalc@...ence.com>,
        <pthombar@...ence.com>
Subject: [PATCH 1/2] block: add bi_crypto_ctx variable in struct bio

Add variable 'void *bi_crypt_ctx' in 'struct bio'. This will
be used to associate bio with crypto configuration of controller
supporting real time / inline encryption/decryption.

Signed-off-by: Parshuram Thombare <pthombar@...ence.com>
---
 include/linux/blk_types.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 1dcf652..bd77603 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -188,6 +188,10 @@ struct bio {
 #endif
 	};
 
+#ifdef CONFIG_BLK_DEV_HW_RT_ENCRYPTION
+	void *bi_crypto_ctx;
+#endif
+
 	unsigned short		bi_vcnt;	/* how many bio_vec's */
 
 	/*
-- 
1.7.1