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authorNick Terrell <terrelln@fb.com>2020-07-30 12:08:35 -0700
committerIngo Molnar <mingo@kernel.org>2020-07-31 11:49:08 +0200
commit4963bb2b89884bbdb7e33e6a09c159551e9627aa (patch)
tree503649537075d61fddbfec3f73736d57e5c33a2e /lib/Makefile
parent6d25a633ea68a103c7293d16eb69a7d4689075ad (diff)
downloadlinux-4963bb2b89884bbdb7e33e6a09c159551e9627aa.tar.bz2
lib: Add zstd support to decompress
- Add unzstd() and the zstd decompress interface. - Add zstd support to decompress_method(). The decompress_method() and unzstd() functions are used to decompress the initramfs and the initrd. The __decompress() function is used in the preboot environment to decompress a zstd compressed kernel. The zstd decompression function allows the input and output buffers to overlap because that is used by x86 kernel decompression. Signed-off-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20200730190841.2071656-3-nickrterrell@gmail.com
Diffstat (limited to 'lib/Makefile')
-rw-r--r--lib/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Makefile b/lib/Makefile
index b1c42c10073b..2ba9642a3a87 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -170,6 +170,7 @@ lib-$(CONFIG_DECOMPRESS_LZMA) += decompress_unlzma.o
lib-$(CONFIG_DECOMPRESS_XZ) += decompress_unxz.o
lib-$(CONFIG_DECOMPRESS_LZO) += decompress_unlzo.o
lib-$(CONFIG_DECOMPRESS_LZ4) += decompress_unlz4.o
+lib-$(CONFIG_DECOMPRESS_ZSTD) += decompress_unzstd.o
obj-$(CONFIG_TEXTSEARCH) += textsearch.o
obj-$(CONFIG_TEXTSEARCH_KMP) += ts_kmp.o