> -----Original Message----- > From: David Miller [mailto:da...@davemloft.net] > Sent: Wednesday, January 18, 2017 5:45 AM > To: Ashizuka, Yuusuke/芦塚 雄介 > Cc: fugang.d...@nxp.com; netdev@vger.kernel.org > Subject: Re: [PATCH] net: fec: Fixed panic problem with non-tso > > From: Yuusuke Ashiduka <ashid...@jp.fujitsu.com> > Date: Tue, 17 Jan 2017 16:48:20 +0900 > > > If highmem and 2GB or more of memory are valid, "this_frag-> page.p" > > indicates the highmem area, so the result of page_address() is NULL > > and panic occurs. > > > > This commit fixes this by using the skb_frag_dma_map() helper, which > > takes care of mapping the skb fragment properly. Additionally, the > > type of mapping is now tracked, so it can be unmapped using > > dma_unmap_page or dma_unmap_single when appropriate. > > This patch submission is lacking a proper signoff.
Thank you for pointing out my mistake. I will submit the patch again.
