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path: root/drivers/firmware/arm_scmi/base.c
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2018-09-10firmware: arm_scmi: use strlcpy to ensure NULL-terminated stringsSudeep Holla
Replace all the memcpy() for copying name strings from the firmware with strlcpy() to make sure we are bounded by the source buffer size and we also always have NULL-terminated strings. This is needed to avoid out of bounds accesses if the firmware returns a non-terminated string. Reported-by: Olof Johansson <olof@lixom.net> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2018-05-10firmware: arm_scmi: rename scmi_xfer_{init,get,put}Sudeep Holla
Just after the initial patches were queued, Jonathan Cameron mentioned that scmi_one_xfer_{get_put} were not very clear and suggested to use scmi_xfer_{alloc,free}. While I agree to some extent, the reason not to have alloc/free as these are preallocated buffers and these functions just returns a reference to free slot in that preallocated array. However it was agreed to drop "_one" as it's implicit that we are always dealing with one slot anyways. This patch updates the name accordingly dropping "_one" in both {get,put} functions. Also scmi_one_xfer_init is renamed as scmi_xfer_get_init to reflect the fact that it gets the free slots and then initialise it. Reported-by: Jonathan Cameron <jonathan.cameron@huawei.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2018-05-09firmware: arm_scmi: fix kernel-docs documentationSudeep Holla
There are few missing descriptions for function parameters and structure members along with certain instances where excessive function parameters or structure members are described. This patch fixes all of those warnings. Reported-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2018-02-28firmware: arm_scmi: add common infrastructure and support for base protocolSudeep Holla
The base protocol describes the properties of the implementation and provide generic error management. The base protocol provides commands to describe protocol version, discover implementation specific attributes and vendor/sub-vendor identification, list of protocols implemented and the various agents are in the system including OSPM and the platform. It also supports registering for notifications of platform errors. This protocol is mandatory. This patch adds support for the same along with some basic infrastructure to add support for other protocols. Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>