]> git.baikalelectronics.ru Git - kernel.git/commit
projects / kernel.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 6db045b) | patch
drivers: net: davinci_mdio: remove busy loop on wait user access
authorMaxim Uvarov <muvarov@gmail.com>
Thu, 10 Aug 2017 07:47:46 +0000 (10:47 +0300)
committerDavid S. Miller <davem@davemloft.net>
Fri, 11 Aug 2017 21:23:59 +0000 (14:23 -0700)
commitd1e6404b5276b719970437cd8174e410c4fc2924
treec48837e059647422f9c99b320abda09d5b9f376etree | snapshot
parent6db045b140d6beeacec9310b60ba8925907bca8fcommit | diff
drivers: net: davinci_mdio: remove busy loop on wait user access

Polling 14 mdio devices on single mdio bus eats 30% of 1Ghz cpu time
due to busy loop in wait(). Add small delay to relax cpu.

Signed-off-by: Max Uvarov <muvarov@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/ti/davinci_mdio.c diff | blob | history
Linux Kernel Source Tree.