diff mbox

[dpdk-dev] igb_uio: cast private data to correct struct type

Message ID 1457024900-18245-1-git-send-email-ferruh.yigit@intel.com (mailing list archive)
State Accepted, archived
Delegated to: Thomas Monjalon
Headers

Commit Message

Ferruh Yigit March 3, 2016, 5:08 p.m. UTC 
  Fixes: af75078fece3 ("first public release")

This was working fine because addresses of two structs are same:

struct A {
	struct B b;
} a;

As above sample "a" and "b" has same address.

Now casting private data back to the correct struct type, to the one
stored.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
 lib/librte_eal/linuxapp/igb_uio/igb_uio.c | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

Comments

Ananyev, Konstantin March 4, 2016, 1:17 p.m. UTC | #1 
> Subject: [dpdk-dev] [PATCH] igb_uio: cast private data to correct struct type
> 
> Fixes: af75078fece3 ("first public release")
> 
> This was working fine because addresses of two structs are same:
> 
> struct A {
> 	struct B b;
> } a;
> 
> As above sample "a" and "b" has same address.
> 
> Now casting private data back to the correct struct type, to the one
> stored.
> 
> Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
> ---

Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>

> --
> 2.5.0
Thomas Monjalon March 7, 2016, 10:29 p.m. UTC | #2 
2016-03-04 13:17, Ananyev, Konstantin:
> > Subject: [dpdk-dev] [PATCH] igb_uio: cast private data to correct struct type
> > 
> > Fixes: af75078fece3 ("first public release")
> > 
> > This was working fine because addresses of two structs are same:
> > 
> > struct A {
> > 	struct B b;
> > } a;
> > 
> > As above sample "a" and "b" has same address.
> > 
> > Now casting private data back to the correct struct type, to the one
> > stored.
> > 
> > Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
> 
> Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>

Applied, thanks
diff mbox

Patch

diff --git a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
index f5617d2..3374e44 100644
--- a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
+++ b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
@@ -561,24 +561,17 @@  fail_free:
 static void
 igbuio_pci_remove(struct pci_dev *dev)
 {
-	struct uio_info *info = pci_get_drvdata(dev);
-	struct rte_uio_pci_dev *udev;
-
-	if (info->priv == NULL) {
-		pr_notice("Not igbuio device\n");
-		return;
-	}
-	udev = info->priv;
+	struct rte_uio_pci_dev *udev = pci_get_drvdata(dev);
 
 	sysfs_remove_group(&dev->dev.kobj, &dev_attr_grp);
-	uio_unregister_device(info);
-	igbuio_pci_release_iomem(info);
+	uio_unregister_device(&udev->info);
+	igbuio_pci_release_iomem(&udev->info);
 	if (udev->mode == RTE_INTR_MODE_MSIX)
 		pci_disable_msix(dev);
 	pci_release_regions(dev);
 	pci_disable_device(dev);
 	pci_set_drvdata(dev, NULL);
-	kfree(info);
+	kfree(udev);
 }
 
 static int