[ Upstream commit 839349d13905927d8a567ca4d21d88c82028e31d ] On the remote side, when QRTR socket is removed, af_qrtr will call qrtr_port_remove() which broadcasts the DEL_CLIENT packet to all neighbours including local NS. NS upon receiving the DEL_CLIENT packet, will remove the lookups associated with the node:port and broadcasts the DEL_SERVER packet. But on the host side, due to the arrival of the DEL_CLIENT packet, the NS would've already deleted the server belonging to that port. So when the remote's NS again broadcasts the DEL_SERVER for that port, it throws below error message on the host: "failed while handling packet from 2:-2" So fix this error by not broadcasting the DEL_SERVER packet when the DEL_CLIENT packet gets processed." Fixes: 0c2204a4ad71 ("net: qrtr: Migrate nameservice to kernel from userspace") Reviewed-by: Manivannan Sadhasivam <mani@kernel.org> Signed-off-by: Ram Kumar Dharuman <quic_ramd@quicinc.com> Signed-off-by: Sricharan Ramabadhran <quic_srichara@quicinc.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
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. 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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