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: <1650304226-11080-1-git-send-email-quic_jhugo@quicinc.com>
Date:   Mon, 18 Apr 2022 11:50:24 -0600
From:   Jeffrey Hugo <quic_jhugo@...cinc.com>
To:     <mani@...nel.org>, <quic_hemantk@...cinc.com>,
        <quic_bbhatt@...cinc.com>
CC:     <mhi@...ts.linux.dev>, <linux-arm-msm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Jeffrey Hugo <quic_jhugo@...cinc.com>
Subject: [PATCH v4 0/2] MHI MMIO register write updates

In case of MHI MMIO writes, the register field write function needs to do reads
before writes are performed. Propagate read failures such that callers are made
aware of those and can take appropriate action instead of running blind.

Optimizing the MMIO initialization function to use mhi_write_reg() in most cases
should also be done to improve design.

These patches were tested on X86_64 architecture with Ubuntu 18.04 and SDX65
attach.

v4:
Address review comments about log messages, and a missing blank line

v3:
Noticed this was reviewed but never picked up.  Rebased to -next

v2:
-Fix testbot reported missing set of changes from pm.c

Bhaumik Bhatt (2):
  bus: mhi: host: Bail on writing register fields if read fails
  bus: mhi: host: Optimize and update MMIO register write method

 drivers/bus/mhi/host/boot.c     | 22 +++++++++----
 drivers/bus/mhi/host/init.c     | 68 ++++++++++++++++++++++++-----------------
 drivers/bus/mhi/host/internal.h |  7 +++--
 drivers/bus/mhi/host/main.c     |  9 ++++--
 drivers/bus/mhi/host/pm.c       | 15 ++++++---
 5 files changed, 77 insertions(+), 44 deletions(-)

-- 
2.7.4

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ