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The most important fix here is for missing dropping of the RCU read lock
when syncing maple tree register caches, the physical devices I have
that use the code don't do any syncing so I'd only ever tested this with
virtual devices and missed the fact that we need to drop the lock in
order to write to buses that need to sleep. Otherwise there's a fix for
an edge case when splitting up large batch writes which has been lurking
for a long time, a check to make sure nobody writes new drivers with a
bug that was found in several SoundWire drivers and a tweak to the way
the new kunit tests are enabled to ensure they don't cause regmap to be
enabled when it wouldn't otherwise be.
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Merge tag 'regmap-fix-v6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap fixes from Mark Brown:
"The most important fix here is for missing dropping of the RCU read
lock when syncing maple tree register caches, the physical devices I
have that use the code don't do any syncing so I'd only ever tested
this with virtual devices and missed the fact that we need to drop the
lock in order to write to buses that need to sleep.
Otherwise there's a fix for an edge case when splitting up large batch
writes which has been lurking for a long time, a check to make sure
nobody writes new drivers with a bug that was found in several
SoundWire drivers and a tweak to the way the new kunit tests are
enabled to ensure they don't cause regmap to be enabled when it
wouldn't otherwise be"
* tag 'regmap-fix-v6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: maple: Drop the RCU read lock while syncing registers
regmap: sdw: check for invalid multi-register writes config
regmap: Account for register length when chunking
regmap: REGMAP_KUNIT should not select REGMAP
1683c329b6