Messages in this thread | | | Date | Thu, 21 Apr 2022 12:40:56 +0530 | From | Pratyush Yadav <> | Subject | Re: [PATCH v2] spi: spi-mem: check if data buffers are on stack |
| |
On 20/04/22 02:04PM, Mark Brown wrote: > On Wed, Apr 20, 2022 at 03:50:22PM +0530, Pratyush Yadav wrote: > > The buffers passed in the data phase must be DMA-able. Programmers often > > don't realise this requirement and pass in buffers that reside on the > > stack. This can be hard to spot when reviewing code. Reject ops if their > > data buffer is on the stack to avoid this. > > > > Signed-off-by: Pratyush Yadav <p.yadav@ti.com> > > Acked-by: Mark Brown <broonie@kernel.org> > > --- > > > > Changes in v2: > > - Include task_stack.h. It might not get included indirectly on some > > platforms and can cause build failures. > > - Add a WARN_ON_ONCE() for debuggability. > > - Add Mark's Ack. > > Since this is now an isolated patch does that mean whatever meant that I > acked rather than applying this patch has gone in and I can now apply it > directly?
Yes, you should be able to apply it directly. Miquel's spi-mem-ecc branch is now in 5.18-rc1 and later. Though this patch never conflicted with that branch to begin with. The spi-mem-ecc branch does not touch spi_mem_check_op() as far as I can see.
-- Regards, Pratyush Yadav Texas Instruments Inc.
| |