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-dev

e105b8bf - sysfs: add /sys/dev/{char,block} to lookup sysfs path by major:minor

Mon, 21 Apr 2008 17:51:07 +0000

sysfs: add /sys/dev/{char,block} to lookup sysfs path by major:minorWhy?:There are occasions where userspace would like to access sysfsattributes for a device but it may not know how sysfs has named thedevice or the path. For example what is the sysfs path for/dev/disk/by-id/ata-ST3160827AS_5MT004CK? With this change a call tostat(2) returns the major:minor then userspace can see that/sys/dev/block/8:32 links to /sys/block/sdc.What are the alternatives?:1/ Add an ioctl to return the path: Doable, but sysfs is meant to reduce the need to proliferate ioctl interfaces into the kernel, so this seems counter productive.2/ Use udev to create these symlinks: Also doable, but it adds a udev dependency to utilities that might be running in a limited environment like an initramfs.3/ Do a full-tree search of sysfs.[kay.sievers@vrfy.org: fix duplicate registrations][kay.sievers@vrfy.org: cleanup suggestions]Cc: Neil Brown Cc: Tejun Heo Acked-by: Kay Sievers Reviewed-by: SL Baur Acked-by: Kay Sievers Acked-by: Mark Lord Acked-by: H. Peter Anvin Signed-off-by: Dan Williams Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-dev

Changes in sysfs-dev

54a19b4d - docs: ABI: cleanup several ABI documents

e105b8bf - sysfs: add /sys/dev/{char,block} to lookup sysfs path by major:minor