On Mon, May 31, 2021 at 02:12:46PM -0700, Nathan Chancellor wrote:

On Wed, May 19, 2021 at 02:37:26PM -0700, Kees Cook wrote:

quoted

I've added this to patch to my -next tree now:

https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git/commit/?h=for-next/clang/pgo&id=e1af496cbe9b4517428601a4e44fee3602dd3c15

Would this be appropriate to send? Someone sent some patches based on
this work so it would be nice to solidify how they will get to Linus
if/when the time comes :)

Yeah, good idea.

https://lore.kernel.org/r/20210528200133.459022-1-jarmo.tiitto@gmail.com/ (local)
https://lore.kernel.org/r/20210528200432.459120-1-jarmo.tiitto@gmail.com/ (local)
https://lore.kernel.org/r/20210528200821.459214-1-jarmo.tiitto@gmail.com/ (local)
https://lore.kernel.org/r/20210528201006.459292-1-jarmo.tiitto@gmail.com/ (local)
https://lore.kernel.org/r/20210528201107.459362-1-jarmo.tiitto@gmail.com/ (local)
https://lore.kernel.org/r/20210528201213.459483-1-jarmo.tiitto@gmail.com/ (local)

BTW, Jarmo, if you haven't had this suggested yet, I'd recommend using
this kind of a script for your email sending workflow to get a set of
threaded patches:

#!/bin/sh
set -x

MYSELF="Your Name [off-list ref]"
prefix="PATCH"
#	or
#prefix="PATCH v2"
#	etc...
SHA="SHA your series is based on"


format_args="--cover-letter -n -o outgoing/"
maint_args="--norolestats"

mkdir -p outgoing
git format-patch $format_args --subject-prefix "$prefix" "$SHA"

./scripts/checkpatch.pl "$@" --codespell outgoing/0*patch

${EDITOR:-vi} outgoing/*

# Send patches
git send-email --transfer-encoding=8bit --8bit-encoding=UTF-8 \
	--no-chain-reply-to --thread \
	--from="$MYSELF" --cc="$MYSELF" \
	--to-cmd="./scripts/get_maintainer.pl $maint_args -m" \
	--cc-cmd="./scripts/get_maintainer.pl $maint_args --nom" \
	outgoing/*

quoted hunk

Cheers,
Nathan

======================================

diff --git a/MAINTAINERS b/MAINTAINERS
index c45613c30803..0d03f6ccdb70 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS

@@ -14378,9 +14378,13 @@ F:	include/uapi/linux/personality.h
 PGO BASED KERNEL PROFILING
 M:	Sami Tolvanen <samitolvanen@google.com>
 M:	Bill Wendling <wcw@google.com>
+M:	Kees Cook <keescook@chromium.org>
 R:	Nathan Chancellor <nathan@kernel.org>
 R:	Nick Desaulniers <ndesaulniers@google.com>
+L:	clang-built-linux@googlegroups.com
 S:	Supported
+B:	https://github.com/ClangBuiltLinux/linux/issues
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/clang/pgo

I think I'm going to keep things combined in a single tree for now since the patch rate
is low:

+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/clang/features

 F:	Documentation/dev-tools/pgo.rst
 F:	kernel/pgo/
 

I should likely do the same entry for CFI.

-- 
Kees Cook