Both cmd_xzkern and cmd_xzmisc where already defined in the same file Signed-off-by: Jules Maselbas <jmaselbas@xxxxxxxx> Reviewed-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx> --- v2: no changes --- scripts/Makefile.lib | 28 ---------------------------- 1 file changed, 28 deletions(-) diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index f04c09f9e2..6baa618f15 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -470,34 +470,6 @@ cmd_lzo = (cat $(filter-out FORCE,$^) | \ %.lzo: % $(call if_changed,lzo) -# XZ -# --------------------------------------------------------------------------- -# Use xzkern to compress the kernel image and xzmisc to compress other things. -# -# xzkern uses a big LZMA2 dictionary since it doesn't increase memory usage -# of the kernel decompressor. A BCJ filter is used if it is available for -# the target architecture. xzkern also appends uncompressed size of the data -# using size_append. The .xz format has the size information available at -# the end of the file too, but it's in more complex format and it's good to -# avoid changing the part of the boot code that reads the uncompressed size. -# Note that the bytes added by size_append will make the xz tool think that -# the file is corrupt. This is expected. -# -# xzmisc doesn't use size_append, so it can be used to create normal .xz -# files. xzmisc uses smaller LZMA2 dictionary than xzkern, because a very -# big dictionary would increase the memory usage too much in the multi-call -# decompression mode. A BCJ filter isn't used either. -quiet_cmd_xzkern = XZKERN $@ -cmd_xzkern = (cat $(filter-out FORCE,$^) | \ - sh $(srctree)/scripts/xz_wrap.sh && \ - $(call size_append, $(filter-out FORCE,$^))) > $@ || \ - (rm -f $@ ; false) - -quiet_cmd_xzmisc = XZMISC $@ -cmd_xzmisc = (cat $(filter-out FORCE,$^) | \ - xz --check=crc32 --lzma2=dict=1MiB) > $@ || \ - (rm -f $@ ; false) - # lz4 # --------------------------------------------------------------------------- -- 2.42.0
