kernel/linux.git/Documentation/ABI/testing/sysfs-kernel-cpu_byteorder, branch v6.19.11Linux kernel stable tree (mirror)https://git.radix-linux.su/kernel/linux.git/atom?h=v6.19.112022-11-10T18:07:31+00:00kernel/ksysfs.c: export kernel cpu byteorder2022-11-10T18:07:31+00:00Thomas Weißschuhlinux@weissschuh.net2022-11-03T15:24:07+00:00urn:sha1:d3d76fbde1c456a6d19991baa99ea8c2d6e6696f
Certain files in procfs are formatted in byteorder-dependent formats.
For example the IP addresses in /proc/net/udp.
When using emulation like qemu-user, applications are not guaranteed to
be using the same byteorder as the kernel.
Therefore the kernel needs to provide a way for applications to discover
the byteorder used in API-filesystems.
Using systemcalls is not enough because these are intercepted and
translated by the emulation.
Also this makes it easier for non-compiled applications like
shellscripts to discover the byteorder.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20221103152407.3348-1-linux@weissschuh.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>