ARM64: Disabling warnings about deprecated armv8 instructions
mzoran at crowfest.net
Sun Jan 22 00:07:04 PST 2017
I'm not sure if this if the correct place to be asking this. The RPI
3 running ARM64 is slowly reaching the point of being about to
seriously run a 32 bit vender OS like Raspbian. When running Raspbian,
I'm seeing a very large number(thousands) of kernel log messages about
deprecated instructions especially setend and barrier instuctions.
This can be very annoying and is completely filling the kernel log.
I'm considering submitting a patch to add a Kconfig option to disable
these warnings with the default being to keep the warnings enabled. I
was wondering if such a patch could be seriously considered.
I completely understand thee need for these warnings and the need to
encourage people to update software, but at the same time some software
like Raspbian needs to run on a large number of processors with a
simple install so updating isn't always realistic.
Running a 64 bit kernel with a 32 bit userland is better from a upgrade
point of view then always running 32 just because they want to not have
the machine slowed by excessive logging.
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