Changes in sysfs-class-devlink

e020ff61 - driver core: Fix device link device name collision

Sun, 10 Jan 2021 17:54:07 +0000

driver core: Fix device link device name collisionThe device link device's name was of the form:--This can cause name collision as reported here [1] as device names arenot globally unique. Since device names have to be unique within thebus/class, add the bus/class name as a prefix to the device names used toconstruct the device link device name.So the devuce link device's name will be of the form::--:[1] - https://lore.kernel.org/lkml/20201229033440.32142-1-michael@walle.cc/Fixes: 287905e68dd2 ("driver core: Expose device link details in sysfs")Cc: stable@vger.kernel.orgReported-by: Michael Walle Tested-by: Michael Walle Signed-off-by: Saravana Kannan Link: https://lore.kernel.org/r/20210110175408.1465657-1-saravanak@google.comSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-class-devlink

54a19b4d - docs: ABI: cleanup several ABI documents

Fri, 30 Oct 2020 07:40:50 +0000

docs: ABI: cleanup several ABI documentsThere are some ABI documents that, while they don't generateany warnings, they have issues when parsed by get_abi.pl scripton its output result.Address them, in order to provide a clean output.Reviewed-by: Tom Rix # for fpga-managerReviewed-By: Kajol Jain # for sysfs-bus-event_source-devices-hv_gpci and sysfs-bus-event_source-devices-hv_24x7Acked-by: Jonathan Cameron #for IIOAcked-by: Oded Gabbay # for HabanalabsAcked-by: Vaibhav Jain # for sysfs-bus-papr-pmemAcked-by: Cezary Rojewski # for catptAcked-by: Suzuki K Poulose Acked-by: Ilya Dryomov # for rbdAcked-by: Jonathan Corbet Signed-off-by: Mauro Carvalho Chehab Link: https://lore.kernel.org/r/5bc78e5b68ed1e9e39135173857cb2e753be868f.1604042072.git.mchehab+huawei@kernel.orgSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-class-devlink

90b109d5 - driver core: Change delimiter in devlink device's name to "--"

Fri, 24 Jul 2020 18:05:22 +0000

driver core: Change delimiter in devlink device's name to "--"The devlink device name is of the form "supplier:consumer". But ":" isfairly common in device names and makes it visually hard to distinguishsupplier and consumer. So, replace it with "--" to make it easier.Signed-off-by: Saravana Kannan Link: https://lore.kernel.org/r/20200724180523.1393383-1-saravanak@google.comSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-class-devlink

287905e6 - driver core: Expose device link details in sysfs

Thu, 21 May 2020 19:17:58 +0000

driver core: Expose device link details in sysfsIt's helpful to be able to look at device link details from sysfs. So,expose it in sysfs.Say device-A is supplier of device-B. These are the additional filesthis patch would create:/sys/class/devlink/device-A:device-B/ auto_remove_on consumer/ -> .../device-B/ runtime_pm status supplier/ -> .../device-A/ sync_state_only/sys/devices/.../device-A/ consumer:device-B/ -> /sys/class/devlink/device-A:device-B//sys/devices/.../device-B/ supplier:device-A/ -> /sys/class/devlink/device-A:device-B/That way:To get a list of all the device link in the system:ls /sys/class/devlink/To get the consumer names and links of a device:ls -d /sys/devices/.../device-X/consumer:*To get the supplier names and links of a device:ls -d /sys/devices/.../device-X/supplier:*Signed-off-by: Saravana Kannan Link: https://lore.kernel.org/r/20200521191800.136035-2-saravanak@google.comSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-class-devlink