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. thanks, Takashi
