> -----Original Message----- > From: Dan Carpenter [mailto:dan.carpen...@oracle.com] > Sent: Monday, September 16, 2013 11:33 AM > To: KY Srinivasan > Cc: Dmitry Torokhov; o...@aepfle.de; gre...@linuxfoundation.org; > jasow...@redhat.com; linux-kernel@vger.kernel.org; vojt...@suse.cz; linux- > in...@vger.kernel.org; a...@canonical.com; de...@linuxdriverproject.org > Subject: Re: [PATCH 1/1] Drivers: input: serio: New driver to support Hyper-V > synthetic keyboard > > Just roll something like the following into your patch. > > regards, > dan carpenter > > diff --git a/drivers/input/serio/hyperv-keyboard.c > b/drivers/input/serio/hyperv- > keyboard.c > index 0d4625f..262721b 100644 > --- a/drivers/input/serio/hyperv-keyboard.c > +++ b/drivers/input/serio/hyperv-keyboard.c > @@ -151,15 +151,18 @@ static void hv_kbd_free_device(struct hv_kbd_dev > *device) > } > > static void hv_kbd_on_receive(struct hv_device *device, > - struct vmpacket_descriptor *packet) > + struct vmpacket_descriptor *packet, size_t size) > { > struct synth_kbd_msg *msg; > struct hv_kbd_dev *kbd_dev = hv_get_drvdata(device); > struct synth_kbd_keystroke *ks_msg; > + int offset; > u16 scan_code; > > - msg = (struct synth_kbd_msg *)((unsigned long)packet + > - (packet->offset8 << 3)); > + offset = packet->offset8 << 3; > + if (offset + sizeof(struct synth_kbd_protocol_response) > size) > + return; > + msg = (void *)packet + offset; > > switch (msg->header.type) { > case SYNTH_KBD_PROTOCOL_RESPONSE: > @@ -220,7 +223,7 @@ static void hv_kbd_on_channel_callback(void *context) > break; > > case VM_PKT_DATA_INBAND: > - hv_kbd_on_receive(device, desc); > + hv_kbd_on_receive(device, desc, bytes_recvd); > break; > > default:
Dan, Rolling the changes you have indicated is not the issue; this can trivially be done. My contention is that it is not needed given that the underlying function is already doing that. Look at the function vmbus_recvpacket_raw() in drivers/hv/channel.c. Regards, K. Y -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
