diff mbox series

[6/6] net/ice/base: fix for and/or bitmap routines

Message ID 20190723035115.42664-7-qi.z.zhang@intel.com (mailing list archive)
State Accepted, archived
Delegated to: Qi Zhang
Headers
Series net/ice/base: couple share code fix |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK

Commit Message

Qi Zhang July 23, 2019, 3:51 a.m. UTC 
  There was an issue with ice_and_bitmap and ice_or_bitmap when
dealing with bit array sizes that are not even multiples of 32,
where some of relevant bits in the highest 32 bits were being
cleared. This patch fixes those problems.

Fixes: c9e37832c95f ("net/ice/base: rework on bit ops")
Cc: stable@dpdk.org

Signed-off-by: Dan Nowlin <dan.nowlin@intel.com>
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
 drivers/net/ice/base/ice_bitops.h | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ice/base/ice_bitops.h b/drivers/net/ice/base/ice_bitops.h
index c74407d9d..a3a67eb4b 100644
--- a/drivers/net/ice/base/ice_bitops.h
+++ b/drivers/net/ice/base/ice_bitops.h
@@ -191,8 +191,7 @@  ice_and_bitmap(ice_bitmap_t *dst, const ice_bitmap_t *bmp1,
 	 * size value alone.
 	 */
 	mask = LAST_CHUNK_MASK(size);
-	dst[i] &= ~mask;
-	dst[i] |= (bmp1[i] & bmp2[i]) & mask;
+	dst[i] = (dst[i] & ~mask) | ((bmp1[i] & bmp2[i]) & mask);
 	res |= dst[i] & mask;
 
 	return res != 0;
@@ -226,8 +225,7 @@  ice_or_bitmap(ice_bitmap_t *dst, const ice_bitmap_t *bmp1,
 	 * within the specified size.
 	 */
 	mask = LAST_CHUNK_MASK(size);
-	dst[i] &= ~mask;
-	dst[i] |= (bmp1[i] | bmp2[i]) & mask;
+	dst[i] = (dst[i] & ~mask) | ((bmp1[i] | bmp2[i]) & mask);
 }
 
 /**