It's more convenient to have strreplace() to return the pointer to
 the string itself. This will help users to make their code better.

The patch 1 kills the only user of the returned value of strreplace(),
Patch 2 converts the return value of strreplace(). And patch 3 shows
how it may be useful. That said, the series can be routed via fs tree,
with or without the last patch.

In v3:
- rebased on top of latest Linux Next

In v2:
- removed not anymore used variable (LKP)
- added tag (Jan)
- fixed wording (Kees)
- actually return the pointer to the string itself

Andy Shevchenko (3):
  jbd2: Avoid printing outside the boundary of the buffer
  lib/string_helpers: Change returned value of the strreplace()
  kobject: Use return value of strreplace()

 fs/jbd2/journal.c      |  6 ++----
 include/linux/string.h |  2 +-
 lib/kobject.c          |  3 +--
 lib/string_helpers.c   | 12 ++++++++----
 4 files changed, 12 insertions(+), 11 deletions(-)

-- 
2.40.0.1.gaa8946217a0b

On Mon, 5 Jun 2023 20:05:50 +0300, Andy Shevchenko wrote:
> It's more convenient to have strreplace() to return the pointer to
>  the string itself. This will help users to make their code better.
> 
> The patch 1 kills the only user of the returned value of strreplace(),
> Patch 2 converts the return value of strreplace(). And patch 3 shows
> how it may be useful. That said, the series can be routed via fs tree,
> with or without the last patch.
> 
> [...]

Applied to for-next/hardening, thanks!

[1/3] jbd2: Avoid printing outside the boundary of the buffer
      https://git.kernel.org/kees/c/7afb6d8fa81f
[2/3] lib/string_helpers: Change returned value of the strreplace()
      https://git.kernel.org/kees/c/d01a77afd6be
[3/3] kobject: Use return value of strreplace()
      https://git.kernel.org/kees/c/b2f10148ec1e

-- 
Kees Cook