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| author | Dimitris Papastamos <dp@opensource.wolfsonmicro.com> | 2013-02-11 11:50:59 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-02-11 12:25:33 +0100 |
| commit | 4dd7c5531d3b046574da39096b1a66c738aca102 (patch) | |
| tree | 35924e82be3e915577262cc4b27dd9f34fb7b802 /drivers/base | |
| parent | regmap: debugfs: Optimize seeking within blocks of registers (diff) | |
| download | linux-4dd7c5531d3b046574da39096b1a66c738aca102.tar.xz linux-4dd7c5531d3b046574da39096b1a66c738aca102.zip | |
regmap: debugfs: Factor out debugfs_tot_len calc into a function
In preparation to support the regmap debugfs ranges functionality
factor this code out to a separate function. We'll need to ensure
that the value has been correctly calculated from two separate places
in the code.
Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/regmap/regmap-debugfs.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c index 246f459e9170..78d5f20c5f5b 100644 --- a/drivers/base/regmap/regmap-debugfs.c +++ b/drivers/base/regmap/regmap-debugfs.c @@ -155,6 +155,19 @@ static unsigned int regmap_debugfs_get_dump_start(struct regmap *map, return ret; } +static inline void regmap_calc_tot_len(struct regmap *map, + void *buf, size_t count) +{ + /* Calculate the length of a fixed format */ + if (!map->debugfs_tot_len) { + map->debugfs_reg_len = regmap_calc_reg_len(map->max_register, + buf, count); + map->debugfs_val_len = 2 * map->format.val_bytes; + map->debugfs_tot_len = map->debugfs_reg_len + + map->debugfs_val_len + 3; /* : \n */ + } +} + static ssize_t regmap_read_debugfs(struct regmap *map, unsigned int from, unsigned int to, char __user *user_buf, size_t count, loff_t *ppos) @@ -173,14 +186,7 @@ static ssize_t regmap_read_debugfs(struct regmap *map, unsigned int from, if (!buf) return -ENOMEM; - /* Calculate the length of a fixed format */ - if (!map->debugfs_tot_len) { - map->debugfs_reg_len = regmap_calc_reg_len(map->max_register, - buf, count); - map->debugfs_val_len = 2 * map->format.val_bytes; - map->debugfs_tot_len = map->debugfs_reg_len + - map->debugfs_val_len + 3; /* : \n */ - } + regmap_calc_tot_len(map, buf, count); /* Work out which register we're starting at */ start_reg = regmap_debugfs_get_dump_start(map, from, *ppos, &p); |