From: Matias Bjørling <m@bjorling.me>
Date: Mon, 16 Nov 2015 14:34:36 +0000 (+0100)
Subject: lightnvm: change max_phys_sect to uint
X-Git-Tag: firefly_0821_release~176^2~644^2~30
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=aedf17f4515b12ba1cd73298e66baa69cf93010e;p=firefly-linux-kernel-4.4.55.git

lightnvm: change max_phys_sect to uint

The max_phys_sect variable is defined as a char. We do a boundary check
to maximally allow 256 physical page descriptors per command. As we are
not indexing from zero. This expression is always false. Bump the
max_phys_sect to an unsigned int to support the range check.

Signed-off-by: Matias Bjørling <m@bjorling.me>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jens Axboe <axboe@fb.com>
---

diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h
index 69c9057e1ab8..32b5369e814e 100644
--- a/include/linux/lightnvm.h
+++ b/include/linux/lightnvm.h
@@ -220,7 +220,7 @@ struct nvm_dev_ops {
 	nvm_dev_dma_alloc_fn	*dev_dma_alloc;
 	nvm_dev_dma_free_fn	*dev_dma_free;
 
-	uint8_t			max_phys_sect;
+	unsigned int		max_phys_sect;
 };
 
 struct nvm_lun {