On 1/22/21 8:59 AM, Su wrote: > > 在 2021/1/22 下午3:26, Marc Kleine-Budde 写道: >> On 1/22/21 4:02 AM, Su Yanjun wrote: >>> Recently i use mcp2518fd on 4.x kernel which multiple write is not >>> backported, regmap_raw_write will cause old kernel crash because the >>> tx buffer in driver is smaller then 2K. Use regmap_bulk_write instead >>> for compatibility. >> Hmmm, this patch will never be backported to any 4.x kernel, as the driver is >> not available on these kernels. You have to carry patches for these kernels >> anyway, so I think I'll not take that patch. Sorry. Drop me a note if you are >> interested in updating your kernel to a recent v5.11 kernel. > > I got it. I have already port it to 4.x kernel. I just want anyone > working on old kernels to use the driver more easier. Ok, you can post a link yo your repo with the patches for the interested reader. Marc -- Pengutronix e.K. | Marc Kleine-Budde | Embedded Linux | https://www.pengutronix.de | Vertretung West/Dortmund | Phone: +49-231-2826-924 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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