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 69c9057e1ab89330b1ed22cd0681bf5440ce0096..32b5369e814e2da4fb380f4833269cc89ed46bdb 100644 (file)
--- 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 {