diff options
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/plpks.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/plpks.h b/arch/powerpc/include/asm/plpks.h index e7204e6c0ca4..0c49969b0864 100644 --- a/arch/powerpc/include/asm/plpks.h +++ b/arch/powerpc/include/asm/plpks.h @@ -88,16 +88,28 @@ int plpks_remove_var(char *component, u8 varos, /** * Returns the data for the specified os variable. + * + * Caller must allocate a buffer in var->data with length in var->datalen. + * If no buffer is provided, var->datalen will be populated with the object's + * size. */ int plpks_read_os_var(struct plpks_var *var); /** * Returns the data for the specified firmware variable. + * + * Caller must allocate a buffer in var->data with length in var->datalen. + * If no buffer is provided, var->datalen will be populated with the object's + * size. */ int plpks_read_fw_var(struct plpks_var *var); /** * Returns the data for the specified bootloader variable. + * + * Caller must allocate a buffer in var->data with length in var->datalen. + * If no buffer is provided, var->datalen will be populated with the object's + * size. */ int plpks_read_bootloader_var(struct plpks_var *var); |