linux-kernel - [GIT PULL 09/45] lightnvm: pblk: remove size and out of bounds read check

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Message-Id: <20181009111215.7653-10-mb@lightnvm.io>
Date:   Tue,  9 Oct 2018 13:11:39 +0200
From:   Matias Bjørling <mb@...htnvm.io>
To:     axboe@...com
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        Matias Bjørling <mb@...htnvm.io>
Subject: [GIT PULL 09/45] lightnvm: pblk: remove size and out of bounds read check

The I/O size and capacity checks are already done by the block layer.

Signed-off-by: Matias Bjørling <mb@...htnvm.io>
Reviewed-by: Javier González <javier@...xlabs.com>
---
 drivers/lightnvm/pblk-read.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/lightnvm/pblk-read.c b/drivers/lightnvm/pblk-read.c
index 9c61c19be5dc..ba3dcb6be4c3 100644
--- a/drivers/lightnvm/pblk-read.c
+++ b/drivers/lightnvm/pblk-read.c
@@ -449,13 +449,6 @@ int pblk_submit_read(struct pblk *pblk, struct bio *bio)
 	DECLARE_BITMAP(read_bitmap, NVM_MAX_VLBA);
 	int ret = NVM_IO_ERR;
 
-	/* logic error: lba out-of-bounds. Ignore read request */
-	if (blba >= pblk->rl.nr_secs || nr_secs > NVM_MAX_VLBA) {
-		WARN(1, "pblk: read lba out of bounds (lba:%llu, nr:%d)\n",
-					(unsigned long long)blba, nr_secs);
-		return NVM_IO_ERR;
-	}
-
 	generic_start_io_acct(q, REQ_OP_READ, bio_sectors(bio),
 			      &pblk->disk->part0);
 
-- 
2.17.1