2021-08-19 11:57:20

by Colin King

[permalink] [raw]
Subject: [PATCH] hinic: make array speeds static const, makes object smaller

From: Colin Ian King <[email protected]>

Don't populate the array speeds on the stack but instead it
static const. Makes the object code smaller by 17 bytes:

Before:
text data bss dec hex filename
39987 14200 64 54251 d3eb .../huawei/hinic/hinic_sriov.o

After:
text data bss dec hex filename
39906 14264 64 54234 d3da .../huawei/hinic/hinic_sriov.o

(gcc version 10.3.0)

Signed-off-by: Colin Ian King <[email protected]>
---
drivers/net/ethernet/huawei/hinic/hinic_sriov.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/huawei/hinic/hinic_sriov.c b/drivers/net/ethernet/huawei/hinic/hinic_sriov.c
index f8a26459ff65..a78c398bf5b2 100644
--- a/drivers/net/ethernet/huawei/hinic/hinic_sriov.c
+++ b/drivers/net/ethernet/huawei/hinic/hinic_sriov.c
@@ -836,8 +836,10 @@ int hinic_ndo_set_vf_trust(struct net_device *netdev, int vf, bool setting)
int hinic_ndo_set_vf_bw(struct net_device *netdev,
int vf, int min_tx_rate, int max_tx_rate)
{
- u32 speeds[] = {SPEED_10, SPEED_100, SPEED_1000, SPEED_10000,
- SPEED_25000, SPEED_40000, SPEED_100000};
+ static const u32 speeds[] = {
+ SPEED_10, SPEED_100, SPEED_1000, SPEED_10000,
+ SPEED_25000, SPEED_40000, SPEED_100000
+ };
struct hinic_dev *nic_dev = netdev_priv(netdev);
struct hinic_port_cap port_cap = { 0 };
enum hinic_port_link_state link_state;
--
2.32.0


2021-08-19 12:34:39

by patchwork-bot+netdevbpf

[permalink] [raw]
Subject: Re: [PATCH] hinic: make array speeds static const, makes object smaller

Hello:

This patch was applied to netdev/net-next.git (refs/heads/master):

On Thu, 19 Aug 2021 12:52:53 +0100 you wrote:
> From: Colin Ian King <[email protected]>
>
> Don't populate the array speeds on the stack but instead it
> static const. Makes the object code smaller by 17 bytes:
>
> Before:
> text data bss dec hex filename
> 39987 14200 64 54251 d3eb .../huawei/hinic/hinic_sriov.o
>
> [...]

Here is the summary with links:
- hinic: make array speeds static const, makes object smaller
https://git.kernel.org/netdev/net-next/c/36d5825babbc

You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html