ACK: [PATCH 0/1][SRU][Jammy] UBSAN warnings in Intel IPU6 camera driver at boot

[Tim Gardner]

Acked-by: Tim Gardner <tim.gardner at canonical.com>

On 4/8/22 10:14, You-Sheng Yang wrote:
> BugLink: https://bugs.launchpad.net/bugs/1958006
> 
> [Impact]
> 
> Several UBSAN warnings captured on Intel IPU6 camera equipped platforms
> running 5.15+ kernels.
> 
> [Fix]
> 
> Upstream fix commit 8dcb7d8df28f ("media: pci: intel: Avoid UBSAN
> warnings of index bound and shift").
> 
> [Test Case]
> 
> Boot Intel IPU6 camera equipped platforms and check dmesg.
> 
> [Where problems could occur]
> 
> This patch turns a few return statements to error to stop further
> processing that may fall in UBSAN warnings. No other side effect.
> 
> [Other Info]
> 
> While plan for -generic and oem-5.17 is still under discuss, only Jammy
> is nominated for linux-oem-5.14/focal migration (to hwe-5.15).
> 
> This depends on the pull request titled "Support Intel IPU6 MIPI camera
> on Alder Lake platforms" for bug 1955383 for Jammy.
> 
> Hao Yao (1):
>    UBUNTU: SAUCE: media: pci: intel: Avoid UBSAN warnings of index bound
>      and shift
> 
>   drivers/media/pci/intel/ipu6/ipu-resources.c | 21 ++++++++++++++------
>   1 file changed, 15 insertions(+), 6 deletions(-)
> 

-- 
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Tim Gardner
Canonical, Inc