x86: remove old lzma tuning patch
authorChristian Lamparter <chunkeey@gmail.com>
Sat, 4 Dec 2021 20:52:22 +0000 (21:52 +0100)
committerChristian Lamparter <chunkeey@gmail.com>
Fri, 10 Dec 2021 23:50:02 +0000 (00:50 +0100)
commit4deaeaa13cbcd3c4b94c69e96d7e507f201ea4cc
treeb0f3d02bc0c3687c71a055bee898dbb2e839d40b
parentffab23d99d980974e502989994f3aaec3f462865
x86: remove old lzma tuning patch

Chen Minqiang reported in his GitHub PR #4733 that:
With CONFIG_TARGET_INITRAMFS_COMPRESSION_LZMA=y option set,
the popular x86/amd64 target's initramfs-kernel failed to boot.

The cause for this boot failure is that the LZMA compression
uses a the first bytes to encode the compression parameters.
It does not have a fixed magic. Yes, this only works if the
the existing lzma options in the upstream are not changed.

This patch does away with OpenWrt special LZMA options tuning
since it is rather unlikely that upstream will improve the
compression algorithm detection after all this time. Even
though, the tuning produced a smaller initramfs (~1.1% in a
spot check).

Link: <https://github.com/openwrt/openwrt/pull/4733>
Reported-by: Chen Minqiang <ptpt52@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
target/linux/x86/patches-5.10/011-tune_lzma_options.patch [deleted file]