sysfs-kernel-cpu_byteorder - OpenGrok history log for /openbmc/linux/Documentation/ABI/testing/sysfs-kernel-cpu

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# d3d76fbd	03-Nov-2022	Thomas Weißschuh <linux@weissschuh.net>	kernel/ksysfs.c: export kernel cpu byteorder 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 kernel/ksysfs.c: export kernel cpu byteorder 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> show more ...

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# d3d76fbd

03-Nov-2022

Thomas Weißschuh <linux@weissschuh.net>

kernel/ksysfs.c: export kernel cpu byteorder

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

kernel/ksysfs.c: export kernel cpu byteorder

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>