diff mbox series

[v2,09/12] mtd: nand: denali: use upper/lower_32_bits() macro for clean-up

Message ID 1506052009-8285-10-git-send-email-yamada.masahiro@socionext.com
State Accepted
Commit 5f2baae00542b2203e6d0fa77890f64ff741aaf3
Headers show
Series mtd: nand: denali: more clean-ups | expand

Commit Message

Masahiro Yamada Sept. 22, 2017, 3:46 a.m. UTC 
I used (uint64_t) cast to avoid "right shift count >= width of type"
warning.  <linux/kernel.h> provides nice helpers to cater to it.
The code will be cleaner, and easier to understand.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

---

Changes in v2:
  - Newly added

 drivers/mtd/nand/denali.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

-- 
2.7.4


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diff mbox series

Patch

diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
index 02ce310..e567ad9 100644
--- a/drivers/mtd/nand/denali.c
+++ b/drivers/mtd/nand/denali.c
@@ -469,10 +469,10 @@  static void denali_setup_dma64(struct denali_nand_info *denali,
 			  0x01002000 | (64 << 16) | (write << 8) | page_count);
 
 	/* 2. set memory low address */
-	denali_host_write(denali, mode, dma_addr);
+	denali_host_write(denali, mode, lower_32_bits(dma_addr));
 
 	/* 3. set memory high address */
-	denali_host_write(denali, mode, (uint64_t)dma_addr >> 32);
+	denali_host_write(denali, mode, upper_32_bits(dma_addr));
 }
 
 static void denali_setup_dma32(struct denali_nand_info *denali,