From: "Jan Beulich" <JBeulich@suse.com>
To: "David Vrabel" <david.vrabel@citrix.com>,
"Boris Ostrovsky" <boris.ostrovsky@oracle.com>,
"Jan Beulich" <JBeulich@suse.com>,
"Juergen Gross" <JGross@suse.com>
Cc: "xen-devel" <xen-devel@lists.xenproject.org>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH v4 4/7] xen-pciback: simplify determination of 64-bit memory resource
Date: Wed, 06 Jul 2016 00:58:19 -0600 [thread overview]
Message-ID: <577CC82B02000078000FB7BA@prv-mh.provo.novell.com> (raw)
In-Reply-To: <577CC59602000078000FB7A0@prv-mh.provo.novell.com>
Other than for raw BAR values, flags are properly separated in the
internal representation.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
---
drivers/xen/xen-pciback/conf_space_header.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
--- 4.7-rc6-xen-pciback.orig/drivers/xen/xen-pciback/conf_space_header.c
+++ 4.7-rc6-xen-pciback/drivers/xen/xen-pciback/conf_space_header.c
@@ -222,10 +222,7 @@ static void *bar_init(struct pci_dev *de
pos = PCI_ROM_RESOURCE;
else {
pos = (offset - PCI_BASE_ADDRESS_0) / 4;
- if (pos && ((res[pos - 1].flags & (PCI_BASE_ADDRESS_SPACE |
- PCI_BASE_ADDRESS_MEM_TYPE_MASK)) ==
- (PCI_BASE_ADDRESS_SPACE_MEMORY |
- PCI_BASE_ADDRESS_MEM_TYPE_64))) {
+ if (pos && (res[pos - 1].flags & IORESOURCE_MEM_64)) {
bar->val = res[pos - 1].start >> 32;
bar->len_val = -resource_size(&res[pos - 1]) >> 32;
return bar;
next prev parent reply other threads:[~2016-07-06 6:58 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-06 6:47 [PATCH v4 0/7] xen-pciback: misc cleanup Jan Beulich
2016-07-06 6:56 ` [PATCH v4 1/7] xen-pciback: drop unused function parameter of read_dev_bar() Jan Beulich
2016-07-06 6:57 ` [PATCH v4 2/7] xen-pciback: drop rom_init() Jan Beulich
2016-07-06 6:57 ` [PATCH v4 3/7] xen-pciback: fold read_dev_bar() into its now single caller Jan Beulich
2016-07-06 6:58 ` Jan Beulich [this message]
2016-07-06 6:58 ` [PATCH v4 5/7] xen-pciback: use const and unsigned in bar_init() Jan Beulich
2016-07-06 6:59 ` [PATCH v4 6/7] xen-pciback: short-circuit read path used for merging write values Jan Beulich
2016-07-06 7:00 ` [PATCH v4 7/7] xen-pciback: drop superfluous variables Jan Beulich
2016-07-06 9:41 ` [Xen-devel] [PATCH v4 0/7] xen-pciback: misc cleanup David Vrabel
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