linux-next: build failure after merge of the rcu tree

[Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>]

Hi all,

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

drivers/base/core.c: In function 'device_links_read_lock_held':
drivers/base/core.c:106:9: error: implicit declaration of function 'lock_is_held'; did you mean 'lockref_get'? [-Werror=implicit-function-declaration]
  return lock_is_held(&device_links_lock);
         ^~~~~~~~~~~~
         lockref_get

Caused by commit

  4a3a5474b4c1 ("driver/core: Convert to use built-in RCU list checking")

lock_is_held() us only available if CONFIG_LOCKDEP is set.

I have reverted that commit for today.

-- 
Cheers,
Stephen Rothwell

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