On Wed, Feb 17, 2021 at 02:34:34PM +0100, Takashi Iwai wrote: > On Wed, 17 Feb 2021 14:24:19 +0100, > Luis Chamberlain wrote: > > > > On Wed, Jan 27, 2021 at 04:49:36PM +0100, Takashi Iwai wrote: > > > Due to the popular demands on ZSTD, here is a patch to add a support > > > of ZSTD-compressed firmware files via the direct firmware loader. > > > It's just like XZ-compressed file support, providing a decompressor > > > with ZSTD. Since ZSTD API can give the decompression size beforehand, > > > the code is even simpler than XZ. > > > > > > Signed-off-by: Takashi Iwai <[email protected]> > > > > It also occurs to me that having a simple like #define > > HAVE_FIRMWARE_COMPRESS_ZSTD > > on include/linux/firmware.h would enable userspace to be aware (if they > > have kernel sources) to determine if the kernels supports this format. > > Extending that idea, we might want to have a sysfs entry showing the > supported formats instead? This will allow to judge dynamically.
What could userspace do with that information?
