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Jian Shen
b4f1d30327
net: hns3: Fix tqp array traversal condition for vf
There are two tqp_num variables "hdev->tqp_num" and "kinfo->tqp_num" used in VF. "hdev->tqp_num" is the total tqp number allocated to the VF, and "kinfo->tqp_num" indicates the tqp number being used by the VF. Usually the two variables are equal. But for the case hdev->tqp_num larger than rss_size_max, and num_tc is 1, "kinfo->tqp_num" will be less than "hdev->tqp_num". In original codes, "hdev->tqp_num" is always used to traverse the tqp array of kinfo. It may cause null pointer error when "hdev->tqp_num" is larger than "kinfo->tqp_num" Fixes: e2cb1dec9779 ("net: hns3: Add HNS3 VF HCL(Hardware Compatibility Layer) Support") Signed-off-by: Jian Shen <shenjian15@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Salil Mehta <salil.mehta@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.
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