From: Guenter Roeck linux@roeck-us.net
[ Upstream commit a9e26169cfda651802f88262a315146fbe4bc74c ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/base/regmap/regmap-kunit.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/base/regmap/regmap-kunit.c b/drivers/base/regmap/regmap-kunit.c index f76d416881349..0b3dacc7fa424 100644 --- a/drivers/base/regmap/regmap-kunit.c +++ b/drivers/base/regmap/regmap-kunit.c @@ -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);