What: /sys/class/backlight//als_channel Date: May 2012 KernelVersion: 3.5 Contact: Johan Hovold Description: Get the ALS output channel used as input in ALS-current-control mode (0, 1), where: == ========================== 0 out_current0 (backlight 0) 1 out_current1 (backlight 1) == ========================== What: /sys/class/backlight//als_en Date: May 2012 KernelVersion: 3.5 Contact: Johan Hovold Description: Enable ALS-current-control mode (0, 1). What: /sys/class/backlight//id Date: April 2012 KernelVersion: 3.5 Contact: Johan Hovold Description: Get the id of this backlight (0, 1). What: /sys/class/backlight//linear Date: April 2012 KernelVersion: 3.5 Contact: Johan Hovold Description: Set the brightness-mapping mode (0, 1), where: == ================ 0 exponential mode 1 linear mode == ================ What: /sys/class/backlight//pwm Date: April 2012 KernelVersion: 3.5 Contact: Johan Hovold Description: Set the PWM-input control mask (5 bits), where: ===== =========================== bit 5 PWM-input enabled in Zone 4 bit 4 PWM-input enabled in Zone 3 bit 3 PWM-input enabled in Zone 2 bit 2 PWM-input enabled in Zone 1 bit 1 PWM-input enabled in Zone 0 bit 0 PWM-input enabled ===== =========================== 9d791eaab6dab3b4b2477'>refslogtreecommitdiff
path: root/drivers/net/ethernet
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authorEdward Cree <ecree@solarflare.com>2020-02-17 13:43:10 +0000
committerDavid S. Miller <davem@davemloft.net>2020-02-17 14:35:23 -0800
commitb7683155517c09c7e0f9d791eaab6dab3b4b2477 (patch)
treecea3ca29b8db6619ce2b9f90695c919f0f3d1fd1 /drivers/net/ethernet
parentbd706ff8ea2b6e2d3f21f0863b2fc42f860f8ba2 (diff)
sfc: only schedule asynchronous filter work if needed
Prevent excessive CPU time spent running a workitem with nothing to do. We avoid any races by keeping the same check in efx_filter_rfs_expire(). Suggested-by: Martin Habets <mhabets@solarflare.com> Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet')