motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-04 00:03:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

vfio-pci: Fix BAR->VFIODevice translation in

Browse source 
DO_UPCAST is supposed to translate from the first member of a struct to
that struct, not from arbitrary ones. And it (usually) breaks the build
when neglecting this rule. Use container_of to fix the build breakage
and likely also the runtime behavior.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
aw: runtime behavior is actually the same, but clearly misuse of DO_UPCAST
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Jan Kiszka 2012-10-08 08:45:31 -06:00 • committed by Alex Williamson
parent 1a40313381
commit 3a4f2816fa
1 changed files with 2 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

4
hw/vfio_pci.c
View file

@ -721,7 +721,7 @@ static void vfio_bar_write(void *opaque, target_phys_addr_t addr,
* which access will service the interrupt, so we're potentially
* getting quite a few host interrupts per guest interrupt.
*/
vfio_eoi(DO_UPCAST(VFIODevice, bars[bar->nr], bar));
vfio_eoi(container_of(bar, VFIODevice, bars[bar->nr]));
}
static uint64_t vfio_bar_read(void *opaque,
@ -761,7 +761,7 @@ static uint64_t vfio_bar_read(void *opaque,
__func__, bar->nr, addr, size, data);
/* Same as write above */
vfio_eoi(DO_UPCAST(VFIODevice, bars[bar->nr], bar));
vfio_eoi(container_of(bar, VFIODevice, bars[bar->nr]));
return data;
}