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* [PATCH 0/5] iio: move IIO to the cleanup.h magic
@ 2024-02-21 13:26 Nuno Sa via B4 Relay
  2024-02-21 13:26 ` [PATCH 1/5] iio: core: move to " Nuno Sa via B4 Relay
                   ` (4 more replies)
  0 siblings, 5 replies; 8+ messages in thread
From: Nuno Sa via B4 Relay @ 2024-02-21 13:26 UTC (permalink / raw)
  To: linux-iio; +Cc: Jonathan Cameron, Lars-Peter Clausen, Nuno Sa

This series moves the main IIO core files to the new cleanup.h
macros for acquiring and automatically releasing mutexes. This results (in
some cases) in way simpler code paths.

I think the overall result is fairly neat (mainly in inkern.c).

One thing to mention is in the iio_event_getfd() function. We might be
changing the return code. Before we directly returned the error code
returned by mutex_lock_interruptible(). Now we return -EINTR. And this
is something visible by userspace so it might mean an ABI breakage.

Having said the above, looking at the mutex_lock_interruptible() docs it
seems we either return 0 or -EINTR. Not sure if that is really truth
(but it does makes sense). On top of that, I would also say it's very
unlikely for someone to be relying on an error code return by a locking
function but who knows... Anyways, this is something worth mentioning.

Next goal is to convert the code under iio/buffer/

---
Nuno Sa (5):
      iio: core: move to cleanup.h magic
      iio: events: move to the cleanup.h magic
      iio: trigger: move to the cleanup.h magic
      iio: buffer: iio: core: move to the cleanup.h magic
      iio: inkern: move to the cleanup.h magic

 drivers/iio/industrialio-buffer.c  | 105 +++++++----------
 drivers/iio/industrialio-core.c    |  52 ++++-----
 drivers/iio/industrialio-event.c   |  42 +++----
 drivers/iio/industrialio-trigger.c |  64 +++++------
 drivers/iio/inkern.c               | 224 ++++++++++++-------------------------
 5 files changed, 172 insertions(+), 315 deletions(-)
---
base-commit: bd2f1ed8873d4bbb2798151bbe28c86565251cfb
change-id: 20240216-iio-use-cleanup-magic-29fc666a142b
--

Thanks!
- Nuno Sá


^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2024-02-23  8:17 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2024-02-21 13:26 [PATCH 0/5] iio: move IIO to the cleanup.h magic Nuno Sa via B4 Relay
2024-02-21 13:26 ` [PATCH 1/5] iio: core: move to " Nuno Sa via B4 Relay
2024-02-22 19:22   ` Jonathan Cameron
2024-02-23  8:20     ` Nuno Sá
2024-02-21 13:26 ` [PATCH 2/5] iio: events: move to the " Nuno Sa via B4 Relay
2024-02-21 13:26 ` [PATCH 3/5] iio: trigger: " Nuno Sa via B4 Relay
2024-02-21 13:26 ` [PATCH 4/5] iio: buffer: iio: core: " Nuno Sa via B4 Relay
2024-02-21 13:26 ` [PATCH 5/5] iio: inkern: " Nuno Sa via B4 Relay

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