Re: [PATCH AUTOSEL 4.4 4/9] parisc: Provide an extru_safe() macro to extract unsigned bits

Pavel Machek
2021-12-04T12:15:58Z

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Hi!

> From: Helge Deller <deller@gmx.de>
>
> [ Upstream commit 169d1a4a2adb2c246396c56aa2f9eec3868546f1 ]
>
> The extru instruction leaves the most significant 32 bits of the
> target register in an undefined state on PA 2.0 systems.
> Provide a macro to safely use extru on 32- and 64-bit machines.

As the macro is not used by subsequent 4.4 patches, I don't believe
this is suitable for -stable.

Best regards,
Pavel
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'DENX Software Engineering GmbH, Managing Director: Wolfgang Denk'
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