From: David Woodhouse
> Sent: 25 October 2020 10:26
> To: David Laight ; x...@kernel.org
>
> On Sun, 2020-10-25 at 09:49 +, David Laight wrote:
> > Just looking at a random one of these patches...
> >
> > Does the compiler manage to optimise that reasonably?
> > Or does it generate a lot of sh
On Sun, 2020-10-25 at 09:49 +, David Laight wrote:
> Just looking at a random one of these patches...
>
> Does the compiler manage to optimise that reasonably?
> Or does it generate a lot of shifts and masks as each
> bitfield is set?
>
> The code generation for bitfields is often a lot worse
From: David Woodhouse
> Sent: 24 October 2020 22:35
>
> From: Thomas Gleixner
>
> Use the msi_msg shadow structs and compose the message with named bitfields
> instead of the unreadable macro maze.
>
> Signed-off-by: Thomas Gleixner
> Signed-off-by: David Woodhouse
> ---
> arch/x86/pci/xen.c
From: Thomas Gleixner
Use the msi_msg shadow structs and compose the message with named bitfields
instead of the unreadable macro maze.
Signed-off-by: Thomas Gleixner
Signed-off-by: David Woodhouse
---
arch/x86/pci/xen.c | 26 +++---
1 file changed, 11 insertions(+), 15 de
