linux-kernel - Re: [PATCH v4] perf/marvell: Marvell PEM performance monitor support

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Date: Thu, 4 Apr 2024 00:40:52 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Gowthami Thiagarajan <gthiagarajan@...vell.com>
Cc: will@...nel.org, mark.rutland@....com,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	sgoutham@...vell.com, gcherian@...vell.com, lcherian@...vell.com
Subject: Re: [PATCH v4] perf/marvell: Marvell PEM performance monitor support

> +config MARVELL_PEM_PMU
> +	tristate "MARVELL PEM PMU Support"
> +	depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT)

Why the && 64BIT?

I expect any kernel function/macro should work on 32bit systems as
well, but might internally need a different implementation. But
drivers should not need to care.

If you get warning / errors with 32bit systems, it might suggests your
driver is not as clean as it could be.

	Andrew