netdev - [PATCH v3 0/2] mwifiex: Work around firmware bugs on 88W8897 chip

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20211011133224.15561-1-verdre@v0yd.nl>
Date:   Mon, 11 Oct 2021 15:32:22 +0200
From:   Jonas Dreßler <verdre@...d.nl>
To:     Amitkumar Karwar <amitkarwar@...il.com>,
        Ganapathi Bhat <ganapathi017@...il.com>,
        Xinming Hu <huxinming820@...il.com>,
        Kalle Valo <kvalo@...eaurora.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     Jonas Dreßler <verdre@...d.nl>,
        Tsuchiya Yuto <kitakar@...il.com>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
        Maximilian Luz <luzmaximilian@...il.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Pali Rohár <pali@...nel.org>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Johannes Berg <johannes@...solutions.net>,
        Brian Norris <briannorris@...omium.org>,
        David Laight <David.Laight@...LAB.COM>
Subject: [PATCH v3 0/2] mwifiex: Work around firmware bugs on 88W8897 chip

This is the third revision of this patch, here's v1 and v2:
v1: https://lore.kernel.org/linux-wireless/20210830123704.221494-1-verdre@v0yd.nl/
v2: https://lore.kernel.org/linux-wireless/20210914114813.15404-1-verdre@v0yd.nl/

Changes between v2 and v3:
 - Use consistent terminology (PCIe, USB)
 - Read a generic register (PCI_VENDOR_ID) in the first patch since it's not 
 the actual readback that fixes the crash. I decided against using usleep()
 because reading a register has proven to work on lots of devices for a few 
 months now, and usleep() only appears to work when a certain duration is used.
 - Use read_poll_timeout() for wakeup patch

Jonas Dreßler (2):
  mwifiex: Read a PCI register after writing the TX ring write pointer
  mwifiex: Try waking the firmware until we get an interrupt

 drivers/net/wireless/marvell/mwifiex/pcie.c | 36 ++++++++++++++++++---
 1 file changed, 31 insertions(+), 5 deletions(-)

-- 
2.31.1