linux-xiaomi-chiron/drivers/base
Christopher James Halse Rogers 19e8697ba4 dma-buf: Expose buffer size to userspace (v2)
Each dma-buf has an associated size and it's reasonable for userspace
to want to know what it is.

Since userspace already has an fd, expose the size using the
size = lseek(fd, SEEK_END, 0); lseek(fd, SEEK_CUR, 0);
idiom.

v2: Added Daniel's sugeested documentation, with minor fixups

Signed-off-by: Christopher James Halse Rogers <christopher.halse.rogers@canonical.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Tested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
2013-09-10 11:36:45 +05:30
..
power ACPI and power management updates for 3.12-rc1 2013-09-03 15:59:39 -07:00
regmap Driver core patches for 3.12-rc1 2013-09-03 11:37:15 -07:00
attribute_container.c
base.h
bus.c
class.c
core.c ACPI and power management updates for 3.12-rc1 2013-09-03 15:59:39 -07:00
cpu.c ACPI and power management updates for 3.12-rc1 2013-09-03 15:59:39 -07:00
dd.c
devres.c
devtmpfs.c
dma-buf.c dma-buf: Expose buffer size to userspace (v2) 2013-09-10 11:36:45 +05:30
dma-coherent.c
dma-contiguous.c
dma-mapping.c
driver.c
firmware.c
firmware_class.c
hypervisor.c
init.c
isa.c
Kconfig
Makefile
map.c
memory.c ACPI and power management updates for 3.12-rc1 2013-09-03 15:59:39 -07:00
module.c
node.c
pinctrl.c
platform.c
reservation.c
soc.c
syscore.c
topology.c
transport_class.c