[PATCH liburing v1 0/7] Ensure we mark internal functions and variables as static

[Ammar Faizi <ammarfaizi2@gnuweeb.org>]

From: Ammar Faizi <ammarfaizi2@gnuweeb.org>

Hi Jens,

This series is a -Wmissing-prototypes enforcement. -Wmissing-prototypes
is a clang C compiler flag that warns us if we have functions or
variables that are not used outisde the translation unit, but not marked
as static. This enforcement is good because it hints the compiler to do
escape analysis and optimization better.

There are 7 patches in this series.

- Patch 1 is a core library change. Export __io_uring_flush_sq().
- Patch 2 to 6 are cleanups preparation before enforcing
  -Wmissing-prototypes.
- Patch 7 is to add `-Wmissing-prototypes` for GitHub CI bot.

This series has been build tested each patch with the GitHub CI robot
and no breakage is found.

Signed-off-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
---

Ammar Faizi (7):
  liburing.h: Export `__io_uring_flush_sq()` function
  test/io_uring_setup: Remove unused functions
  ucontext-cp: Remove an unused function
  tests: Mark internal functions as static
  ucontext-cp: Mark internal functions as static
  test/Makefile: Omit `-Wmissing-prototypes` from the C++ compiler flags
  github: Add `-Wmissing-prototypes` for GitHub CI bot

 .github/workflows/build.yml |  7 ++--
 examples/ucontext-cp.c      | 19 +--------
 src/include/liburing.h      |  1 +
 src/liburing.map            |  5 +++
 test/Makefile               | 11 ++++-
 test/accept-link.c          |  2 +-
 test/accept-reuse.c         |  9 ++--
 test/ce593a6c480a.c         |  4 +-
 test/defer-taskrun.c        |  2 +-
 test/exit-no-cleanup.c      |  2 +-
 test/hardlink.c             |  2 +-
 test/io_uring_setup.c       | 83 ++-----------------------------------
 test/link_drain.c           |  2 +-
 test/multicqes_drain.c      | 27 +++++++-----
 test/nvme.h                 |  3 +-
 test/poll-link.c            |  2 +-
 test/poll-mshot-overflow.c  |  2 +-
 test/read-before-exit.c     |  2 +-
 test/ring-leak2.c           |  2 +-
 test/sq-poll-kthread.c      |  2 +-
 test/sqpoll-cancel-hang.c   |  2 +-
 test/symlink.c              |  3 +-
 test/timeout-new.c          | 12 ++++--
 23 files changed, 70 insertions(+), 136 deletions(-)


base-commit: b90a28636e5b5efe6dc1383acc90aec61814d9ba
-- 
Ammar Faizi