Messages in this thread | | | Date | Thu, 28 Mar 2019 17:22:33 +0100 | From | Greg KH <> | Subject | Re: [PATCH v3] w1: ds2408: reset on output_write retry with readback |
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On Thu, Mar 28, 2019 at 08:22:44AM -0400, Jean-Francois Dagenais wrote: > When we have success in 'Channel Access Write' but reading back latch > states fails, a write is retried without doing a proper slave reset. > This leads to protocol errors as the slave treats the next 'Channel > Access Write' as the continuation of previous command. > > This commit is fixing this by making sure if the retry loop re-runs, a > reset is performed, whatever the failure (CONFIRM_BYTE or the read > back). > > The loop was quite due for a cleanup and this change mandated it. By > isolating the CONFIG_W1_SLAVE_DS2408_READBACK case into it's own > function, we vastly reduce the visual and branching(runtime and > compile-time) noise. > > Reported-by: Mariusz Bialonczyk <manio@skyboo.net> > Tested-by: Mariusz Bialonczyk <manio@skyboo.net> > Signed-off-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com> > --- > drivers/w1/slaves/w1_ds2408.c | 76 ++++++++++++++++++++++--------------------- > 1 file changed, 39 insertions(+), 37 deletions(-)
What changed from previous versions? That information always goes below the --- line.
v4 please.
thanks,
greg k-h
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