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From: Hans de Goede <hdegoede@redhat.com>
Subject: Re: New brcmfmac errors in 4.12: brcmf_sdio_rxglom: sublen ... not
 multiple of 8
To: Arend van Spriel <arend.vanspriel@broadcom.com>,
        Franky Lin <franky.lin@broadcom.com>,
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Message-ID: <540e89cd-c222-e81a-5e34-600ae0aa052e@redhat.com> (sfid-20170513_143558_629684_9EBE1017)
Date: Sat, 13 May 2017 14:35:52 +0200
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<resend with the author of the commit causing this added>

Hi,

On 13-05-17 14:19, Hans de Goede wrote:
> Hi,
> 
> I've just rebased my personal kernel tree to what will soon be 4.12-rc1
> and I'm getting my dmesg log filled with the following errors:
> 
> [   32.528271] brcmfmac: brcmf_sdio_rxglom: sublen 524 not multiple of 8
> [   32.528296] brcmfmac: brcmf_sdio_rxglom: sublen 84 not multiple of 8
> [   33.063241] brcmfmac: brcmf_sdio_rxglom: sublen 1492 not multiple of 8
> 
> Other brcmfmac dmesg messages:
> 
> [   16.020013] brcmfmac: brcmf_c_preinit_dcmds: Firmware version = wl0: Jul 17 2013 07:36:07 version 6.10.197.71 (r412987) FWID 01-882d2634
> 
> This is on a Asus T100TA which uses a 43241b1

Ok, this seems to be a regression caused by:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6e84ab604bded
"brcmfmac: properly align buffers on certain platforms with 64 bit DMA"

I believe this may need a different fix then that.

Regards,

Hans