linux/drivers/gpu/host1x
Greg Kroah-Hartman d69d804845 driver core: have match() callback in struct bus_type take a const *
In the match() callback, the struct device_driver * should not be
changed, so change the function callback to be a const *.  This is one
step of many towards making the driver core safe to have struct
device_driver in read-only memory.

Because the match() callback is in all busses, all busses are modified
to handle this properly.  This does entail switching some container_of()
calls to container_of_const() to properly handle the constant *.

For some busses, like PCI and USB and HV, the const * is cast away in
the match callback as those busses do want to modify those structures at
this point in time (they have a local lock in the driver structure.)
That will have to be changed in the future if they wish to have their
struct device * in read-only-memory.

Cc: Rafael J. Wysocki <rafael@kernel.org>
Reviewed-by: Alex Elder <elder@kernel.org>
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Link: https://lore.kernel.org/r/2024070136-wrongdoer-busily-01e8@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-07-03 15:16:54 +02:00
..
hw
Kconfig
Makefile
bus.c driver core: have match() callback in struct bus_type take a const * 2024-07-03 15:16:54 +02:00
bus.h
cdma.c
cdma.h
channel.c
channel.h
context.c
context.h
context_bus.c
debug.c
debug.h
dev.c gpu: host1x: Convert to platform remove callback returning void 2024-05-27 10:13:55 +02:00
dev.h
fence.c
fence.h
intr.c
intr.h
job.c
job.h
mipi.c
syncpt.c
syncpt.h