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authorGuenter Roeck <linux@roeck-us.net>2023-07-19 20:28:47 -0700
committerMark Brown <broonie@kernel.org>2023-07-20 13:57:01 +0100
commita9e26169cfda651802f88262a315146fbe4bc74c (patch)
tree9b66d33fd9d2bac0d3c4bfd12320c9995108a992 /drivers/base/regmap/regmap-kunit.c
parentb460a52257b1f5299ca70b7d1bb32442d3ce7bf6 (diff)
regmap: Disable locking for RBTREE and MAPLE unit tests
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>
Diffstat (limited to 'drivers/base/regmap/regmap-kunit.c')
-rw-r--r--drivers/base/regmap/regmap-kunit.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/base/regmap/regmap-kunit.c b/drivers/base/regmap/regmap-kunit.c
index 24257aa9004d..9ff3018a46aa 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);
@@ -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)