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authorBreno Leitao <leitao@debian.org>2026-08-05 07:52:36 -0700
committerTejun Heo <tj@kernel.org>2026-08-10 11:47:20 -1000
commita5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656 (patch)
tree39f5b258386e1127d253d293194e9a2991bf3c34 /Documentation/ABI/testing/sysfs-class-net-grcan
downloadlinux-stable-a5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656.tar.gz
linux-stable-a5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656.zip
workqueue: skip the node_nr_active update for non-unbound workqueuesgrafted
apply_wqattrs_commit() updates node_nr_active->max unconditionally. wq->node_nr_active[] is only allocated for unbound workqueues, so guard the call before per-cpu workqueues start using this path. No functional change: only unbound workqueues reach apply_wqattrs_*() today. Signed-off-by: Breno Leitao <leitao@debian.org> Signed-off-by: Tejun Heo <tj@kernel.org>
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+
+What: /sys/class/net/<iface>/grcan/enable0
+Date: October 2012
+KernelVersion: 3.8
+Contact: Andreas Larsson <andreas@gaisler.com>
+Description:
+ Hardware configuration of physical interface 0. This file reads
+ and writes the "Enable 0" bit of the configuration register.
+ Possible values: 0 or 1. See the GRCAN chapter of the GRLIB IP
+ core library documentation for details. The default value is 0
+ or set by the module parameter grcan.enable0 and can be read at
+ /sys/module/grcan/parameters/enable0.
+
+What: /sys/class/net/<iface>/grcan/enable1
+Date: October 2012
+KernelVersion: 3.8
+Contact: Andreas Larsson <andreas@gaisler.com>
+Description:
+ Hardware configuration of physical interface 1. This file reads
+ and writes the "Enable 1" bit of the configuration register.
+ Possible values: 0 or 1. See the GRCAN chapter of the GRLIB IP
+ core library documentation for details. The default value is 0
+ or set by the module parameter grcan.enable1 and can be read at
+ /sys/module/grcan/parameters/enable1.
+
+What: /sys/class/net/<iface>/grcan/select
+Date: October 2012
+KernelVersion: 3.8
+Contact: Andreas Larsson <andreas@gaisler.com>
+Description:
+ Configuration of which physical interface to be used. Possible
+ values: 0 or 1. See the GRCAN chapter of the GRLIB IP core
+ library documentation for details. The default value is 0 or is
+ set by the module parameter grcan.select and can be read at
+ /sys/module/grcan/parameters/select.