Messages in this thread | | | From | Dexuan Cui <> | Subject | RE: [PATCH V2 3/5] Drivers: hv: kvp: Fix the recent regression caused by incorrect clean-up | Date | Wed, 31 Oct 2018 23:23:54 +0000 |
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> From: Michael Kelley <mikelley@microsoft.com> > Sent: Wednesday, October 24, 2018 08:38 > From: kys@linuxonhyperv.com <kys@linuxonhyperv.com> Sent: Wednesday, > October 17, 2018 10:10 PM > > From: Dexuan Cui <decui@microsoft.com> > > > > In kvp_send_key(), we do need call process_ib_ipinfo() if > > message->kvp_hdr.operation is KVP_OP_GET_IP_INFO, because it turns out > > the userland hv_kvp_daemon needs the info of operation, adapter_id and > > addr_family. With the incorrect fc62c3b1977d, the host can't get the > > VM's IP via KVP. > > > > And, fc62c3b1977d added a "break;", but actually forgot to initialize > > the key_size/value in the case of KVP_OP_SET, so the default key_size of > > 0 is passed to the kvp daemon, and the pool files > > /var/lib/hyperv/.kvp_pool_* can't be updated. > > > > This patch effectively rolls back the previous fc62c3b1977d, and > > correctly fixes the "this statement may fall through" warnings. > > > > This patch is tested on WS 2012 R2 and 2016. > > > > Fixes: fc62c3b1977d ("Drivers: hv: kvp: Fix two "this statement may fall > through" warnings") > > Signed-off-by: Dexuan Cui <decui@microsoft.com> > > Cc: K. Y. Srinivasan <kys@microsoft.com> > > Cc: Haiyang Zhang <haiyangz@microsoft.com> > > Cc: Stephen Hemminger <sthemmin@microsoft.com> > > Cc: <Stable@vger.kernel.org> > > Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> > > --- > > drivers/hv/hv_kvp.c | 26 ++++++++++++++++++++++---- > > 1 file changed, 22 insertions(+), 4 deletions(-) > > > Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Hi Greg, Can you please take a look at this patch?
We need it to fix a regression introduced by me in: Fixes: fc62c3b1977d ("Drivers: hv: kvp: Fix two "this statement may fall through" warnings")
The faulty patch is being meged into the old stable kernels... So we need to take this patch ASAP. Thanks!
-- Dexuan
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