diff options
Diffstat (limited to 'drivers/firmware/efi/vars.c')
| -rw-r--r-- | drivers/firmware/efi/vars.c | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/drivers/firmware/efi/vars.c b/drivers/firmware/efi/vars.c index e9dc7116daf1..3700e9869767 100644 --- a/drivers/firmware/efi/vars.c +++ b/drivers/firmware/efi/vars.c @@ -63,6 +63,7 @@ int efivars_register(struct efivars *efivars, const struct efivar_operations *ops) { int rv; + int event; if (down_interruptible(&efivars_lock)) return -EINTR; @@ -77,6 +78,13 @@ int efivars_register(struct efivars *efivars, __efivars = efivars; + if (efivar_supports_writes()) + event = EFIVAR_OPS_RDWR; + else + event = EFIVAR_OPS_RDONLY; + + blocking_notifier_call_chain(&efivar_ops_nh, event, NULL); + pr_info("Registered efivars operations\n"); rv = 0; out: @@ -141,7 +149,7 @@ int efivar_lock(void) } return 0; } -EXPORT_SYMBOL_NS_GPL(efivar_lock, EFIVAR); +EXPORT_SYMBOL_NS_GPL(efivar_lock, "EFIVAR"); /* * efivar_lock() - obtain the efivar lock if it is free @@ -157,7 +165,7 @@ int efivar_trylock(void) } return 0; } -EXPORT_SYMBOL_NS_GPL(efivar_trylock, EFIVAR); +EXPORT_SYMBOL_NS_GPL(efivar_trylock, "EFIVAR"); /* * efivar_unlock() - release the efivar lock @@ -166,7 +174,7 @@ void efivar_unlock(void) { up(&efivars_lock); } -EXPORT_SYMBOL_NS_GPL(efivar_unlock, EFIVAR); +EXPORT_SYMBOL_NS_GPL(efivar_unlock, "EFIVAR"); /* * efivar_get_variable() - retrieve a variable identified by name/vendor @@ -178,7 +186,7 @@ efi_status_t efivar_get_variable(efi_char16_t *name, efi_guid_t *vendor, { return __efivars->ops->get_variable(name, vendor, attr, size, data); } -EXPORT_SYMBOL_NS_GPL(efivar_get_variable, EFIVAR); +EXPORT_SYMBOL_NS_GPL(efivar_get_variable, "EFIVAR"); /* * efivar_get_next_variable() - enumerate the next name/vendor pair @@ -190,7 +198,7 @@ efi_status_t efivar_get_next_variable(unsigned long *name_size, { return __efivars->ops->get_next_variable(name_size, name, vendor); } -EXPORT_SYMBOL_NS_GPL(efivar_get_next_variable, EFIVAR); +EXPORT_SYMBOL_NS_GPL(efivar_get_next_variable, "EFIVAR"); /* * efivar_set_variable_locked() - set a variable identified by name/vendor @@ -207,7 +215,7 @@ efi_status_t efivar_set_variable_locked(efi_char16_t *name, efi_guid_t *vendor, if (data_size > 0) { status = check_var_size(nonblocking, attr, - data_size + ucs2_strsize(name, 1024)); + data_size + ucs2_strsize(name, EFI_VAR_NAME_LEN)); if (status != EFI_SUCCESS) return status; } @@ -222,7 +230,7 @@ efi_status_t efivar_set_variable_locked(efi_char16_t *name, efi_guid_t *vendor, return setvar(name, vendor, attr, data_size, data); } -EXPORT_SYMBOL_NS_GPL(efivar_set_variable_locked, EFIVAR); +EXPORT_SYMBOL_NS_GPL(efivar_set_variable_locked, "EFIVAR"); /* * efivar_set_variable() - set a variable identified by name/vendor @@ -244,7 +252,7 @@ efi_status_t efivar_set_variable(efi_char16_t *name, efi_guid_t *vendor, efivar_unlock(); return status; } -EXPORT_SYMBOL_NS_GPL(efivar_set_variable, EFIVAR); +EXPORT_SYMBOL_NS_GPL(efivar_set_variable, "EFIVAR"); efi_status_t efivar_query_variable_info(u32 attr, u64 *storage_space, @@ -256,4 +264,4 @@ efi_status_t efivar_query_variable_info(u32 attr, return __efivars->ops->query_variable_info(attr, storage_space, remaining_space, max_variable_size); } -EXPORT_SYMBOL_NS_GPL(efivar_query_variable_info, EFIVAR); +EXPORT_SYMBOL_NS_GPL(efivar_query_variable_info, "EFIVAR"); |