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

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Date: Tue, 23 Jan 2024 12:52:27 +1100
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Christian Brauner <brauner@...nel.org>
Cc: Baokun Li <libaokun1@...wei.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 vfs-brauner tree

Hi all,

After merging the vfs-brauner tree, today's linux-next build (powerpc
allnoconfig) failed like this:

In file included from <command-line>:
In function 'i_size_read',
    inlined from '__iomap_dio_rw' at fs/iomap/direct-io.c:570:16:
include/linux/compiler_types.h:435:45: error: call to '__compiletime_assert_229' declared with attribute error: Need native word sized stores/loads for atomicity.
  435 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
      |                                             ^
include/linux/compiler_types.h:416:25: note: in definition of macro '__compiletime_assert'
  416 |                         prefix ## suffix();                             \
      |                         ^~~~~~
include/linux/compiler_types.h:435:9: note: in expansion of macro '_compiletime_assert'
  435 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
      |         ^~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:438:9: note: in expansion of macro 'compiletime_assert'
  438 |         compiletime_assert(__native_word(t),                            \
      |         ^~~~~~~~~~~~~~~~~~
include/asm-generic/barrier.h:206:9: note: in expansion of macro 'compiletime_assert_atomic_type'
  206 |         compiletime_assert_atomic_type(*p);                             \
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/fs.h:911:16: note: in expansion of macro 'smp_load_acquire'
  911 |         return smp_load_acquire(&inode->i_size);
      |                ^~~~~~~~~~~~~~~~

Caused by commit

  4bbd51d0f0ad ("fs: make the i_size_read/write helpers be smp_load_acquire/store_release()")

I have used the vfs-brauner tree from next-20240122 for today.

-- 
Cheers,
Stephen Rothwell

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