linux-kernel - linux-next: build failure after merge of the ext3 tree

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Date: Thu, 7 Mar 2024 11:07:17 +1100
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Jan Kara <jack@...e.cz>
Cc: Winston Wen <wentao@...ontech.com>, Linux Kernel Mailing List
 <linux-kernel@...r.kernel.org>, Linux Next Mailing List
 <linux-next@...r.kernel.org>
Subject: linux-next: build failure after merge of the ext3 tree

Hi all,

After merging the ext3 tree, today's linux-next build (x86_64
allmodconfig) failed like this:

In file included from include/linux/sysctl.h:27,
                 from include/linux/fanotify.h:5,
                 from fs/notify/fanotify/fanotify.c:2:
fs/notify/fanotify/fanotify.c: In function 'fanotify_get_response':
fs/notify/fanotify/fanotify.c:233:48: error: suggest parentheses around arithmetic in operand of '|' [-Werror=parentheses]
  233 |                                   TASK_KILLABLE|TASK_FREEZABLE);
      |                                                ^
include/linux/wait.h:283:11: note: in definition of macro '___wait_is_interruptible'
  283 |          (state & (TASK_INTERRUPTIBLE | TASK_WAKEKILL)))
      |           ^~~~~
include/linux/wait.h:935:9: note: in expansion of macro '___wait_event'
  935 |         ___wait_event(wq, condition, state, 0, 0, schedule())
      |         ^~~~~~~~~~~~~
include/linux/wait.h:958:25: note: in expansion of macro '__wait_event_state'
  958 |                 __ret = __wait_event_state(wq_head, condition, state);          \
      |                         ^~~~~~~~~~~~~~~~~~
fs/notify/fanotify/fanotify.c:231:15: note: in expansion of macro 'wait_event_state'
  231 |         ret = wait_event_state(group->fanotify_data.access_waitq,
      |               ^~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

Caused by commit

  3440e7e55ced ("fanotify: allow freeze when waiting response for permission events")

Though, I guess, you could argue that the ___wait_is_interruptible macro
should parenthesise the use of its "state" argument.

I have used the ext3 tree from next-20240306 for today.

-- 
Cheers,
Stephen Rothwell

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