diff mbox series

hinic: Use the bitmap API when applicable

Message ID 6ff7b7d21414240794a77dc2456914412718a145.1656260842.git.christophe.jaillet@wanadoo.fr (mailing list archive)
State Accepted
Commit 7c2c57263af41cfd8b5022274e6801542831bb69
Delegated to: Netdev Maintainers
Headers show
Series hinic: Use the bitmap API when applicable | expand

Checks

Context Check Description
netdev/tree_selection success Guessed tree name to be net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix warning Target tree name not specified in the subject
netdev/cover_letter success Single patches do not need cover letters
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 1 this patch: 1
netdev/cc_maintainers success CCed 6 of 6 maintainers
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 1 this patch: 1
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 19 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Christophe JAILLET June 26, 2022, 4:27 p.m. UTC
'vlan_bitmap' is a bitmap and is used as such. So allocate it with
devm_bitmap_zalloc() and its explicit bit size (i.e. VLAN_N_VID).

This avoids the need of the VLAN_BITMAP_SIZE macro which:
   - needlessly has a 'nic_dev' parameter
   - should be "long" (and not byte) aligned, so that the bitmap semantic
     is respected

This is in fact not an issue because VLAN_N_VID is 4096 at the time
being, but devm_bitmap_zalloc() is less verbose and easier to understand.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
 drivers/net/ethernet/huawei/hinic/hinic_main.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

Comments

patchwork-bot+netdevbpf@kernel.org June 28, 2022, 5:40 a.m. UTC | #1
Hello:

This patch was applied to netdev/net-next.git (master)
by Jakub Kicinski <kuba@kernel.org>:

On Sun, 26 Jun 2022 18:27:45 +0200 you wrote:
> 'vlan_bitmap' is a bitmap and is used as such. So allocate it with
> devm_bitmap_zalloc() and its explicit bit size (i.e. VLAN_N_VID).
> 
> This avoids the need of the VLAN_BITMAP_SIZE macro which:
>    - needlessly has a 'nic_dev' parameter
>    - should be "long" (and not byte) aligned, so that the bitmap semantic
>      is respected
> 
> [...]

Here is the summary with links:
  - hinic: Use the bitmap API when applicable
    https://git.kernel.org/netdev/net-next/c/7c2c57263af4

You are awesome, thank you!
diff mbox series

Patch

diff --git a/drivers/net/ethernet/huawei/hinic/hinic_main.c b/drivers/net/ethernet/huawei/hinic/hinic_main.c
index 05329292d940..56a89793f47d 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_main.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_main.c
@@ -62,8 +62,6 @@  MODULE_PARM_DESC(rx_weight, "Number Rx packets for NAPI budget (default=64)");
 
 #define HINIC_LRO_RX_TIMER_DEFAULT	16
 
-#define VLAN_BITMAP_SIZE(nic_dev)       (ALIGN(VLAN_N_VID, 8) / 8)
-
 #define work_to_rx_mode_work(work)      \
 		container_of(work, struct hinic_rx_mode_work, work)
 
@@ -1242,9 +1240,8 @@  static int nic_dev_init(struct pci_dev *pdev)
 	u64_stats_init(&tx_stats->syncp);
 	u64_stats_init(&rx_stats->syncp);
 
-	nic_dev->vlan_bitmap = devm_kzalloc(&pdev->dev,
-					    VLAN_BITMAP_SIZE(nic_dev),
-					    GFP_KERNEL);
+	nic_dev->vlan_bitmap = devm_bitmap_zalloc(&pdev->dev, VLAN_N_VID,
+						  GFP_KERNEL);
 	if (!nic_dev->vlan_bitmap) {
 		err = -ENOMEM;
 		goto err_vlan_bitmap;