3rd-party/linux-kernel-module-cheat
1
0
Fork 0
mirror of https://github.com/cirosantilli/linux-kernel-module-cheat.git synced 2026-01-23 02:05:57 +01:00
Code Issues Releases Wiki Activity

linux kernel update: procedure is only for old patchset

Browse Source
This commit is contained in:
Ciro Santilli
2018-06-05 22:57:12 +01:00
parent 84f88cbd5c
commit b8d8838179
1 changed files with 12 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
README.adoc
View File

@@ -2600,6 +2600,18 @@ git log | grep -E ' Linux [0-9]+\.' | head
==== Update the Linux kernel
During update all you kernel modules may break since the kernel API is not stable.
They are usually trivial breaks of things moving around headers or to sub-structs.
The userland, however, should simply not break, as Linus enforces strict backwards compatibility of userland interfaces.
This backwards compatibility is just awesome, it makes getting and running the latest master painless.
This also makes this repo the perfect setup to develop the Linux kernel.
When we had a local patchset on top of mainline, this is how we updated it:
....
# Last point before out patches.
last_mainline_revision=v4.15
@@ -2628,16 +2640,6 @@ git commit -m "linux: update to ${next_mainline_revision}"
git push
....
During update all you kernel modules may break since the kernel API is not stable.
They are usually trivial breaks of things moving around headers or to sub-structs.
The userland, however, should simply not break, as Linus enforces strict backwards compatibility of userland interfaces.
This backwards compatibility is just awesome, it makes getting and running the latest master painless.
This also makes this repo the perfect setup to develop the Linux kernel.
==== Downgrade the Linux kernel
The kernel is not forward compatible, however, so downgrading the Linux kernel requires downgrading the userland too to the latest Buildroot branch that supports it.