diff options
| author | Brian Norris <briannorris@chromium.org> | 2017-05-01 12:36:59 -0700 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2017-05-18 16:39:36 +0300 |
| commit | 21f569af9ab3608382482166ae9aba802b097e3f (patch) | |
| tree | 44297576b4af2fa52f4507eb1291a4c98cb410de /drivers/net/wireless/marvell/mwifiex/pcie.c | |
| parent | 83625a40165a01655db017fcc871c30e81e56ab4 (diff) | |
| download | linux-rt-21f569af9ab3608382482166ae9aba802b097e3f.tar.gz | |
mwifiex: initiate card-specific work atomically
The non-atomic test + set is a little awkward here, and it technically
means we might double-schedule work unnecessarily. AFAICT, this is not
really a problem, since the extra "work" will be a no-op (the flag(s)
will be cleared by then), but it's still an anti-pattern.
Rewrite this to use the atomic test_and_set_bit() helper instead.
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/marvell/mwifiex/pcie.c')
| -rw-r--r-- | drivers/net/wireless/marvell/mwifiex/pcie.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c index ac62bce50e96..5f56e8e6d612 100644 --- a/drivers/net/wireless/marvell/mwifiex/pcie.c +++ b/drivers/net/wireless/marvell/mwifiex/pcie.c @@ -2837,12 +2837,9 @@ static void mwifiex_pcie_device_dump(struct mwifiex_adapter *adapter) { struct pcie_service_card *card = adapter->card; - if (test_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP, &card->work_flags)) - return; - - set_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP, &card->work_flags); - - schedule_work(&card->work); + if (!test_and_set_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP, + &card->work_flags)) + schedule_work(&card->work); } static void mwifiex_pcie_free_buffers(struct mwifiex_adapter *adapter) |