AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/drivers/base/regmap
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Guenter Roeck 8ef9724bf9 regmap: regcache-rbtree: Clean new present bits on present bitmap resize 
When inserting a new register into a block, the present bit map size is
increased using krealloc. krealloc does not clear the additionally
allocated memory, leaving it filled with random values. Result is that
some registers are considered cached even though this is not the case.

Fix the problem by clearing the additionally allocated memory. Also, if
the bitmap size does not increase, do not reallocate the bitmap at all
to reduce overhead.

Fixes: 3f4ff561bc ("regmap: rbtree: Make cache_present bitmap per node")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
2015-07-29 15:10:13 +01:00
..
internal.h regmap: Use regcache_mark_dirty() to indicate power loss or reset 2015-05-06 13:01:25 +01:00
Kconfig regmap: ac97: Add generic AC'97 callbacks 2014-11-19 10:28:14 +00:00
Makefile regmap: Move tracing header into drivers/base/regmap 2015-03-19 22:22:45 +00:00
regcache-flat.c regmap: cache: Sort include headers alphabetically 2014-10-20 12:25:06 +01:00
regcache-lzo.c regmap: cache: Sort include headers alphabetically 2014-10-20 12:25:06 +01:00
regcache-rbtree.c regmap: regcache-rbtree: Clean new present bits on present bitmap resize 2015-07-29 15:10:13 +01:00
regcache.c regmap: Use regcache_mark_dirty() to indicate power loss or reset 2015-05-06 13:01:25 +01:00
regmap-ac97.c regmap: ac97: Clean up indentation 2015-02-02 12:13:39 +00:00
regmap-debugfs.c Merge remote-tracking branch 'regmap/fix/debugfs' into regmap-linus 2014-09-29 20:49:40 +01:00
regmap-i2c.c regmap: Fix i2c word access when using SMBus access functions 2015-02-04 20:48:13 +00:00
regmap-irq.c regmap: kill off set_irq_flags usage 2015-06-09 20:08:57 +01:00
regmap-mmio.c Merge remote-tracking branches 'regmap/topic/irq', 'regmap/topic/le', 'regmap/topic/mmio' and 'regmap/topic/rbtree' into regmap-next 2014-06-02 17:07:39 +01:00
regmap-spi.c regmap: add DT endianness binding support. 2014-08-16 16:56:23 -05:00
regmap-spmi.c regmap: spmi: support base and extended register spaces 2014-02-15 11:55:28 -08:00
regmap.c Merge remote-tracking branches 'regmap/topic/defaults', 'regmap/topic/irq' and 'regmap/topic/reg-params' into regmap-next 2015-06-17 17:40:08 +01:00
trace.h regmap: Move tracing header into drivers/base/regmap 2015-03-19 22:22:45 +00:00