Messages in this thread | | | Date | Tue, 14 Nov 2023 08:57:54 -0600 | Subject | Re: [PATCH] greybus: gb-beagleplay: fix restricted __le16 degrades to integer warning | From | Alex Elder <> |
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On 11/14/23 8:01 AM, Ayush Singh wrote: > greybus message header->size are of type __le16, so to fix this warnings > we are using le16_to_cpu() macros.
This is more than a warning, it's a bug (though it has no effect with a little-endian native CPU).
I suggest you add:
Fixes: ec558bbfea671 ("greybus: Add BeaglePlay Linux Driver")
Should your hdlc_payload->len field be defined as little-endian? I've only scanned through this file at this point but I'm thinking there might be other endianness fixes needed as well.
-Alex
> > Reported-by: kernel test robot <yujie.liu@intel.com> > Closes: https://lore.kernel.org/r/202311072329.Xogj7hGW-lkp@intel.com/ > Signed-off-by: Ayush Singh <ayushdevel1325@gmail.com> > --- > drivers/greybus/gb-beagleplay.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/greybus/gb-beagleplay.c b/drivers/greybus/gb-beagleplay.c > index 43318c1993ba..b3f47b5cbbfa 100644 > --- a/drivers/greybus/gb-beagleplay.c > +++ b/drivers/greybus/gb-beagleplay.c > @@ -344,7 +344,7 @@ static int gb_message_send(struct gb_host_device *hd, u16 cport, struct gb_messa > dev_dbg(&hd->dev, "Sending greybus message with Operation %u, Type: %X on Cport %u", > msg->header->operation_id, msg->header->type, cport); > > - if (msg->header->size > RX_HDLC_PAYLOAD) > + if (le16_to_cpu(msg->header->size) > RX_HDLC_PAYLOAD) > return dev_err_probe(&hd->dev, -E2BIG, "Greybus message too big"); > > memcpy(msg->header->pad, &cport, sizeof(cport));
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