On Tue, Jun 28, 2022 at 11:03 PM Michael Schmitz [off-list ref] wrote:

On 28/06/22 19:03, Geert Uytterhoeven wrote:

quoted

quoted

The driver allocates bounce buffers using kmalloc if it hits an
unaligned data buffer - can such buffers still even happen these days?

No idea.

Hmmm - I think I'll stick a WARN_ONCE() in there so we know whether this
code path is still being used.

kmalloc() guarantees alignment to the next power-of-two size or
KMALLOC_MIN_ALIGN, whichever is bigger. On m68k this means it
is cacheline aligned.

      Arnd