On 23 July 2015 at 00:17, Masahiro Yamada yamada.masahiro@socionext.com wrote:
Currently, Devres requires additional 16 byte for each allocation, which is not so insignificant in some cases.
Add CONFIG_DEVRES to make this framework optional. If the option is disabled, devres functions fall back to non-managed variants. For example, devres_alloc() to kzalloc(), devm_kmalloc() to kmalloc(), etc.
Because devres_head is also surrounded by the ifdef conditional, there is no memory overhead when CONFIG_DEVRES is disabled.
Signed-off-by: Masahiro Yamada yamada.masahiro@socionext.com Suggested-by: Simon Glass sjg@chromium.org
Changes in v3:
- Introduce CONFIG_DEVRES
- Surround devres_head member with ifdef CONFIG_DEVRES
Changes in v2: None
drivers/core/Kconfig | 14 +++++++- drivers/core/Makefile | 3 +- drivers/core/device.c | 2 ++ include/dm/device-internal.h | 13 +++++++ include/dm/device.h | 86 ++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 116 insertions(+), 2 deletions(-)
Acked-by: Simon Glass sjg@chromium.org