Messages in this thread |  | | Date | Sat, 19 Nov 2016 13:18:12 +0100 | From | Greg Kroah-Hartman <> | Subject | Re: [char-misc-next 4/4 V2] mei: bus: enable non-blocking RX |
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On Sat, Nov 19, 2016 at 02:16:11PM +0200, Tomas Winkler wrote: > From: Alexander Usyskin <alexander.usyskin@intel.com> > > Enable non-blocking receive for drivers on mei bus, this allows checking > for data availability by mei client drivers. This is most effective for > fixed address clients, that lacks flow control. > > This function adds new API function mei_cldev_recv_nonblock(), it > retuns -EGAIN if function will block. > > Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> > Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> > --- > V2: use _nonblock() function suffix instead of NONBLOCK flag > > drivers/misc/mei/bus-fixup.c | 4 ++-- > drivers/misc/mei/bus.c | 31 +++++++++++++++++++++++++++++-- > drivers/misc/mei/mei_dev.h | 7 ++++++- > include/linux/mei_cl_bus.h | 6 ++++-- > 4 files changed, 41 insertions(+), 7 deletions(-) > > diff --git a/drivers/misc/mei/bus-fixup.c b/drivers/misc/mei/bus-fixup.c > index 7f2cef9011ae..18e05ca7584f 100644 > --- a/drivers/misc/mei/bus-fixup.c > +++ b/drivers/misc/mei/bus-fixup.c > @@ -141,7 +141,7 @@ static int mei_osver(struct mei_cl_device *cldev) > if (ret < 0) > return ret; > > - ret = __mei_cl_recv(cldev->cl, buf, length); > + ret = __mei_cl_recv(cldev->cl, buf, length, 0);
What is 0 here? Again, mode...
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