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| author | Rasmus Villemoes <rasmus.villemoes@prevas.dk> | 2020-02-27 16:56:12 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2020-04-24 17:09:59 +0300 |
| commit | 080019b86c997a9b7e13bc7b8f476fbf9a0e5f3c (patch) | |
| tree | 79d730d1f93c336251fe391c7a157455f8465f9e /env/callback.c | |
| parent | 34284970a1736e7be35bef74e4f8e429e703c1ce (diff) | |
| download | u-boot-080019b86c997a9b7e13bc7b8f476fbf9a0e5f3c.tar.xz | |
make env_entry::callback conditional on !CONFIG_SPL_BUILD
The callback member of struct env_entry is always NULL for an SPL
build. Removing it thus saves a bit of run-time memory in the
SPL (when CONFIG_SPL_ENV_SUPPORT=y) since struct env_entry is embedded
in struct env_entry_node - i.e. about 2KB for the normal case of
512+change hash table entries.
Two small fixups are needed for this, all other references to the
callback member are already under !CONFIG_SPL_BUILD: Don't initialize
.callback in set_flags() - hsearch_r doesn't use that value
anyway. And make env_callback_init() initialize ->callback to NULL for
a new entry instead of relying on an unused or deleted entry having
NULL in ->callback.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'env/callback.c')
| -rw-r--r-- | env/callback.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/env/callback.c b/env/callback.c index f0904cfdc5..4054b9ef58 100644 --- a/env/callback.c +++ b/env/callback.c @@ -55,6 +55,8 @@ void env_callback_init(struct env_entry *var_entry) first_call = 0; } + var_entry->callback = NULL; + /* look in the ".callbacks" var for a reference to this variable */ if (callback_list != NULL) ret = env_attr_lookup(callback_list, var_name, callback_name); |