diff mbox series

hv_netvsc: Use bitmap_zalloc() when applicable

Message ID 534578d2296a1f4bd86c9bd4676e9d6b92eceb59.1637531723.git.christophe.jaillet@wanadoo.fr (mailing list archive)
State Accepted
Commit e9268a94399899a3ad797d37d611d9e41f65e8e7
Delegated to: Netdev Maintainers
Headers show
Series hv_netvsc: Use bitmap_zalloc() when applicable | expand

Checks

Context Check Description
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: 0 this patch: 0
netdev/cc_maintainers success CCed 9 of 9 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/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch warning WARNING: line length of 82 exceeds 80 columns
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
netdev/tree_selection success Guessing tree name failed - patch did not apply

Commit Message

Christophe JAILLET Nov. 21, 2021, 9:56 p.m. UTC 
'send_section_map' is a bitmap. So use 'bitmap_zalloc()' to simplify code,
improve the semantic and avoid some open-coded arithmetic in allocator
arguments.

Also change the corresponding 'kfree()' into 'bitmap_free()' to keep
consistency.

While at it, change an '== NULL' test into a '!'.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
 drivers/net/hyperv/netvsc.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

Comments

patchwork-bot+netdevbpf@kernel.org Nov. 22, 2021, 3 p.m. UTC | #1 
Hello:

This patch was applied to netdev/net-next.git (master)
by David S. Miller <davem@davemloft.net>:

On Sun, 21 Nov 2021 22:56:39 +0100 you wrote:
> 'send_section_map' is a bitmap. So use 'bitmap_zalloc()' to simplify code,
> improve the semantic and avoid some open-coded arithmetic in allocator
> arguments.
> 
> Also change the corresponding 'kfree()' into 'bitmap_free()' to keep
> consistency.
> 
> [...]

Here is the summary with links:
  - hv_netvsc: Use bitmap_zalloc() when applicable
    https://git.kernel.org/netdev/net-next/c/e9268a943998

You are awesome, thank you!
diff mbox series

Patch

diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 396bc1c204e6..5086cd07d1ed 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -155,7 +155,7 @@  static void free_netvsc_device(struct rcu_head *head)
 	kfree(nvdev->extension);
 	vfree(nvdev->recv_buf);
 	vfree(nvdev->send_buf);
-	kfree(nvdev->send_section_map);
+	bitmap_free(nvdev->send_section_map);
 
 	for (i = 0; i < VRSS_CHANNEL_MAX; i++) {
 		xdp_rxq_info_unreg(&nvdev->chan_table[i].xdp_rxq);
@@ -336,7 +336,6 @@  static int netvsc_init_buf(struct hv_device *device,
 	struct net_device *ndev = hv_get_drvdata(device);
 	struct nvsp_message *init_packet;
 	unsigned int buf_size;
-	size_t map_words;
 	int i, ret = 0;
 
 	/* Get receive buffer area. */
@@ -528,10 +527,9 @@  static int netvsc_init_buf(struct hv_device *device,
 		   net_device->send_section_size, net_device->send_section_cnt);
 
 	/* Setup state for managing the send buffer. */
-	map_words = DIV_ROUND_UP(net_device->send_section_cnt, BITS_PER_LONG);
-
-	net_device->send_section_map = kcalloc(map_words, sizeof(ulong), GFP_KERNEL);
-	if (net_device->send_section_map == NULL) {
+	net_device->send_section_map = bitmap_zalloc(net_device->send_section_cnt,
+						     GFP_KERNEL);
+	if (!net_device->send_section_map) {
 		ret = -ENOMEM;
 		goto cleanup;
 	}