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| author | Heiner Kallweit <hkallweit1@gmail.com> | 2020-10-29 20:56:06 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-11-01 02:35:49 +0300 |
| commit | 3a689e34973e8717cd57991c6fcf527dc56062b5 (patch) | |
| tree | ae1f5e03ced0bf1b5a32446a30944ac69818b7f9 /drivers/usb | |
| parent | c24672cf59b6f7da102833569fa8455132b2b8c2 (diff) | |
| download | linux-3a689e34973e8717cd57991c6fcf527dc56062b5.tar.xz | |
r8169: remove unneeded memory barrier in rtl_tx
tp->dirty_tx isn't changed outside rtl_tx(). Therefore I see no need
to guarantee a specific order of reading tp->dirty_tx and tp->cur_tx.
Having said that we can remove the memory barrier.
In addition use READ_ONCE() when reading tp->cur_tx because it can
change in parallel to rtl_tx().
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/2264563a-fa9e-11b0-2c42-31bc6b8e2790@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/usb')
0 files changed, 0 insertions, 0 deletions