Re: [PATCH v4] dell_rbu: make firmware payload memory uncachable

2018-04-10 Thread Sasha Levin
Hi, [This is an automated email] This commit has been processed by the -stable helper bot and determined to be a high probability candidate for -stable trees. (score: 19.9792) The bot has tested the following trees: v4.16.1, v4.15.16, v4.14.33, v4.9.93, v4.4.127. v4.16.1: Build OK! v4.15.16: B

Re: [PATCH v4] dell_rbu: make firmware payload memory uncachable

2018-04-06 Thread Takashi Iwai
On Fri, 06 Apr 2018 15:12:21 +0200, Stuart Hayes wrote: > > The dell_rbu driver takes firmware update payloads and puts them in memory so > the system BIOS can find them after a reboot. This sometimes fails (though > rarely), because the memory containing the payload is in the CPU cache but > nev

[PATCH v4] dell_rbu: make firmware payload memory uncachable

2018-04-06 Thread Stuart Hayes
The dell_rbu driver takes firmware update payloads and puts them in memory so the system BIOS can find them after a reboot. This sometimes fails (though rarely), because the memory containing the payload is in the CPU cache but never gets written back to main memory before the system is rebooted (