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From: Tal Shnaiderman <talshn@nvidia.com>
To: dev@dpdk.org
Cc: thomas@monjalon.net, pallavi.kadam@intel.com,
	dmitry.kozliuk@gmail.com, ranjit.menon@intel.com,
	navasile@linux.microsoft.com, dmitrym@microsoft.com,
	stable@dpdk.org
Subject: [dpdk-stable] [PATCH] bus/pci: clear undefined bits in Windows segment parsing
Date: Wed, 14 Oct 2020 22:30:01 +0300
Message-ID: <20201014193001.13820-1-talshn@nvidia.com> (raw)

When reading bus and segment values using SPDRP_BUSNUMBER
bits 24-31 are undefined.

They are cleared to verify we read the segment number correctly.

Fixes: c3adf8144a1 ("bus/pci: support segment value as address domain on Window")
Cc: stable@dpdk.org

Signed-off-by: Tal Shnaiderman <talshn@nvidia.com>
---
 drivers/bus/pci/windows/pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/bus/pci/windows/pci.c b/drivers/bus/pci/windows/pci.c
index 2cd010a09b..2b0a7a7c86 100644
--- a/drivers/bus/pci/windows/pci.c
+++ b/drivers/bus/pci/windows/pci.c
@@ -195,7 +195,7 @@ get_device_pci_address(HDEVINFO dev_info,
 		return -1;
 	}
 
-	addr->domain = bus_num >> 8;
+	addr->domain = (bus_num >> 8) & 0xffff;
 	addr->bus = bus_num & 0xff;
 	addr->devid = dev_and_func >> 16;
 	addr->function = dev_and_func & 0xffff;
-- 
2.16.1.windows.4


             reply index

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-14 19:30 Tal Shnaiderman [this message]
2020-10-14 20:44 ` Ranjit Menon
2020-10-15 18:45 ` Narcisa Ana Maria Vasile
2020-10-16 10:22   ` [dpdk-stable] [dpdk-dev] " Thomas Monjalon

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