Revert "docs: Raise minimum pahole version to 1.26 for KF_IMPLICIT_ARGS kfuncs"

This reverts commit 9edd04c4189e047d4b4f6efd1255e2a32cb167b8.

The doc-only change is insufficient. The actual fix requires bumping the
minimum pahole version to 1.27 with proper Kconfig and Makefile.btf
changes, and should be routed through the BPF tree.

Link: https://lore.kernel.org/all/e0ca748d-3204-4160-b37d-0f76cbac8c6c@linux.dev
Signed-off-by: Tejun Heo <tj@kernel.org>

diff --git a/Documentation/process/changes.rst b/Documentation/process/changes.rst
index 02068d72a101eb0be3ac1d048b8b0c8db73422d9..6b373e193548515aa8b13c49f8d29b60e3aaf7e9 100644 (file)
--- a/Documentation/process/changes.rst
+++ b/Documentation/process/changes.rst
@@ -38,7 +38,7 @@ bash                   4.2              bash --version
 binutils               2.30             ld -v
 flex                   2.5.35           flex --version
 bison                  2.0              bison --version
-pahole                 1.26             pahole --version
+pahole                 1.22             pahole --version
 util-linux             2.10o            mount --version
 kmod                   13               depmod -V
 e2fsprogs              1.41.4           e2fsck -V
@@ -145,11 +145,6 @@ Since Linux 5.2, if CONFIG_DEBUG_INFO_BTF is selected, the build system
 generates BTF (BPF Type Format) from DWARF in vmlinux, a bit later from kernel
 modules as well.  This requires pahole v1.22 or later.
 
-Since Linux 7.0, kfuncs annotated with KF_IMPLICIT_ARGS require pahole v1.26
-or later.  Without it, such kfuncs will have incorrect BTF prototypes in
-vmlinux, causing BPF programs to fail to load with a "func_proto incompatible
-with vmlinux" error.  Many sched_ext kfuncs are affected.
-
 It is found in the 'dwarves' or 'pahole' distro packages or from
 https://fedorapeople.org/~acme/dwarves/.