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From:   =?UTF-8?q?Matias=20Bj=C3=B8rling?= <mb@lightnvm.io>
To:     igor.j.konopko@intel.com, marcin.dziegielewski@intel.com,
        javier@cnexlabs.com, hans.holmberg@cnexlabs.com, hlitz@ucsc.edu,
        youngtack.jin@circuitblvd.com
Cc:     linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
        =?UTF-8?q?Matias=20Bj=C3=B8rling?= <mb@lightnvm.io>
Subject: [PATCH] lightnvm: pblk: remove size and out of bounds read check
Date:   Mon, 20 Aug 2018 14:59:53 +0200
Message-Id: <20180820125953.15364-1-mb@lightnvm.io>
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Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

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

Signed-off-by: Matias Bjørling <mb@lightnvm.io>
---
 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 f275c7e5abe4..d0fbd50ecc90 100644
--- a/drivers/lightnvm/pblk-read.c
+++ b/drivers/lightnvm/pblk-read.c
@@ -452,13 +452,6 @@ 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, READ, bio_sectors(bio), &pblk->disk->part0);
 
 	bitmap_zero(read_bitmap, nr_secs);
-- 
2.11.0