Commit b4e07588e743 for kernel

commit b4e07588e743c989499ca24d49e752c074924a9a
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Mon Apr 20 17:25:56 2026 -0700

    tracing: tell git to ignore the generated 'undefsyms_base.c' file

    This odd file was added to automatically figure out tool-generated
    symbols.

    Honestly, it *should* have been just a real honest-to-goodness regular
    file in git, instead of having strange code to generate it in the
    Makefile, but that is not how that silly thing works.  So now we need to
    ignore it explicitly.

    Fixes: 1211907ac0b5 ("tracing: Generate undef symbols allowlist for simple_ring_buffer")
    Cc: Vincent Donnefort <vdonnefort@google.com>
    Cc: Nathan Chancellor <nathan@kernel.org>
    Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
    Cc: Arnd Bergmann <arnd@arndb.de>
    Cc: Marc Zyngier <maz@kernel.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/kernel/trace/.gitignore b/kernel/trace/.gitignore
new file mode 100644
index 000000000000..6adbb09d6deb
--- /dev/null
+++ b/kernel/trace/.gitignore
@@ -0,0 +1 @@
+/undefsyms_base.c