iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

regmap: Disable locking for RBTREE and MAPLE unit tests

Browse Source 
REGCACHE_RBTREE and REGCACHE_MAPLE dynamically allocate memory
for regmap operations. This is incompatible with spinlock based locking
which is used for fast_io operations. Disable locking for the associated
unit tests to avoid lockdep splashes.

Fixes: f033c26de5a5 ("regmap: Add maple tree based register cache")
Fixes: 2238959b6ad2 ("regmap: Add some basic kunit tests")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20230720032848.1306349-1-linux@roeck-us.net
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Guenter Roeck 2023-07-19 20:28:47 -07:00 committed by Mark Brown
parent b460a52257
commit a9e26169cf
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/base/regmap/regmap-kunit.c
View File

@ -58,6 +58,9 @@ static struct regmap *gen_regmap(struct regmap_config *config,
int i;
struct reg_default *defaults;
config->disable_locking = config->cache_type == REGCACHE_RBTREE ||
config->cache_type == REGCACHE_MAPLE;
buf = kmalloc(size, GFP_KERNEL);
if (!buf)
return ERR_PTR(-ENOMEM);
@ -889,6 +892,8 @@ static struct regmap *gen_raw_regmap(struct regmap_config *config,
config->cache_type = test_type->cache_type;
config->val_format_endian = test_type->val_endian;
config->disable_locking = config->cache_type == REGCACHE_RBTREE ||
config->cache_type == REGCACHE_MAPLE;
buf = kmalloc(size, GFP_KERNEL);
if (!buf)