mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
8a7f9fd8a3
main_proc_lock and int_lock (in mwifiex_adapter) are the only spinlocks
used in hardirq contexts. The rest are only in task or softirq contexts.
Convert every other lock from *_irq{save,restore}() variants to _bh()
variants.
This is a mechanical transformation of all spinlock usage in mwifiex
using the following:
Step 1:
I ran this nasty sed script:
sed -i -E '/spin_lock_irqsave|spin_unlock_irqrestore/ {
/main_proc_lock|int_lock/! {
s:(spin_(un|)lock)_irq(save|restore):\1_bh: ;
# Join broken lines.
:a /;$/! {
N;
s/\s*\n\s*//;
ba
}
/,.*\);$/ s:,.*\):\):
}
}' drivers/net/wireless/marvell/mwifiex/*
Step 2:
Manually delete the flags / ra_list_flags args from:
mwifiex_send_single_packet()
mwifiex_11n_aggregate_pkt()
mwifiex_send_processed_packet()
which are now unused.
Step 3:
Apply this semantic patch (coccinelle) to remove the unused 'flags'
variables:
// <smpl>
@@
type T;
identifier i;
@@
(
extern T i;
|
- T i;
... when != i
)
// </smpl>
(Usage is something like this:
make coccicheck COCCI=./patch.cocci MODE=patch M=drivers/net/wireless/marvell/mwifiex/
although this skips *.h files for some reasons, so I had to massage
stuff.)
Testing: I've played with a variety of stress tests, including download
stress tests on the same APs which caught regressions with commit
5188d5453b ("mwifiex: restructure rx_reorder_tbl_lock usage"). I've
primarily tested on Marvell 8997 / PCIe, although I've given 8897 / SDIO
a quick spin as well.
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
34 lines
1.3 KiB
C
34 lines
1.3 KiB
C
/*
|
|
* Marvell Wireless LAN device driver: 802.11n Aggregation
|
|
*
|
|
* Copyright (C) 2011-2014, Marvell International Ltd.
|
|
*
|
|
* This software file (the "File") is distributed by Marvell International
|
|
* Ltd. under the terms of the GNU General Public License Version 2, June 1991
|
|
* (the "License"). You may use, redistribute and/or modify this File in
|
|
* accordance with the terms and conditions of the License, a copy of which
|
|
* is available by writing to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
|
|
* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
|
|
*
|
|
* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
|
|
* this warranty disclaimer.
|
|
*/
|
|
|
|
#ifndef _MWIFIEX_11N_AGGR_H_
|
|
#define _MWIFIEX_11N_AGGR_H_
|
|
|
|
#define PKT_TYPE_AMSDU 0xE6
|
|
#define MIN_NUM_AMSDU 2
|
|
|
|
int mwifiex_11n_deaggregate_pkt(struct mwifiex_private *priv,
|
|
struct sk_buff *skb);
|
|
int mwifiex_11n_aggregate_pkt(struct mwifiex_private *priv,
|
|
struct mwifiex_ra_list_tbl *ptr,
|
|
int ptr_index)
|
|
__releases(&priv->wmm.ra_list_spinlock);
|
|
|
|
#endif /* !_MWIFIEX_11N_AGGR_H_ */
|