[RFC PATCH 03/13] drivers/xen: Use never-managed version of pci_intx()

Philipp Stanner posted 13 patches 1 month, 2 weeks ago
There is a newer version of this series
[RFC PATCH 03/13] drivers/xen: Use never-managed version of pci_intx()
Posted by Philipp Stanner 1 month, 2 weeks ago
pci_intx() is a hybrid function which can sometimes be managed through
devres. To remove this hybrid nature from pci_intx(), it is necessary to
port users to either an always-managed or a never-managed version.

xen enables its PCI-Device with pci_enable_device(). Thus, it
needs the never-managed version.

Replace pci_intx() with pci_intx_unmanaged().

Signed-off-by: Philipp Stanner <pstanner@redhat.com>
---
 drivers/xen/xen-pciback/conf_space_header.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/xen/xen-pciback/conf_space_header.c b/drivers/xen/xen-pciback/conf_space_header.c
index fc0332645966..8d26d64232e8 100644
--- a/drivers/xen/xen-pciback/conf_space_header.c
+++ b/drivers/xen/xen-pciback/conf_space_header.c
@@ -106,7 +106,7 @@ static int command_write(struct pci_dev *dev, int offset, u16 value, void *data)
 
 	if (dev_data && dev_data->allow_interrupt_control &&
 	    ((cmd->val ^ value) & PCI_COMMAND_INTX_DISABLE))
-		pci_intx(dev, !(value & PCI_COMMAND_INTX_DISABLE));
+		pci_intx_unmanaged(dev, !(value & PCI_COMMAND_INTX_DISABLE));
 
 	cmd->val = value;
 
-- 
2.46.1
Re: [RFC PATCH 03/13] drivers/xen: Use never-managed version of pci_intx()
Posted by Juergen Gross 1 month, 2 weeks ago
On 09.10.24 10:35, Philipp Stanner wrote:
> pci_intx() is a hybrid function which can sometimes be managed through
> devres. To remove this hybrid nature from pci_intx(), it is necessary to
> port users to either an always-managed or a never-managed version.
> 
> xen enables its PCI-Device with pci_enable_device(). Thus, it
> needs the never-managed version.
> 
> Replace pci_intx() with pci_intx_unmanaged().
> 
> Signed-off-by: Philipp Stanner <pstanner@redhat.com>

Acked-by: Juergen Gross <jgross@suse.com>

BTW, the diffstat in the [PATCH 00/13] mail is missing some files,
e.g. the changes of this patch.


Juergen

Re: [RFC PATCH 03/13] drivers/xen: Use never-managed version of pci_intx()
Posted by Philipp Stanner 1 month, 2 weeks ago
On Wed, 2024-10-09 at 10:51 +0200, Juergen Gross wrote:
> On 09.10.24 10:35, Philipp Stanner wrote:
> > pci_intx() is a hybrid function which can sometimes be managed
> > through
> > devres. To remove this hybrid nature from pci_intx(), it is
> > necessary to
> > port users to either an always-managed or a never-managed version.
> > 
> > xen enables its PCI-Device with pci_enable_device(). Thus, it
> > needs the never-managed version.
> > 
> > Replace pci_intx() with pci_intx_unmanaged().
> > 
> > Signed-off-by: Philipp Stanner <pstanner@redhat.com>
> 
> Acked-by: Juergen Gross <jgross@suse.com>
> 
> BTW, the diffstat in the [PATCH 00/13] mail is missing some files,
> e.g. the changes of this patch.

Ooops, probably something exploded when I copied the backed-up cover-
letter after regenerating the patches. Will fix.

But good to see that someone actually reads cover letters :p

P.

> 
> 
> Juergen
>