linux-kernel - sparse: __pure declaration only

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Message-ID: <09d824ac-5371-830e-466d-7f78ccdae065@codethink.co.uk>
Date:   Fri, 18 Oct 2019 12:15:22 +0100
From:   Ben Dooks <ben.dooks@...ethink.co.uk>
To:     linux-sparse@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: sparse: __pure declaration only

I'm seeing the following sparse warnings where the declaration
has __pure but the implementation does not.

> lib/bitmap.c:62:6: error: symbol '__bitmap_or_equal' redeclared with different type (originally declared at ./include/linux/bitmap.h:123) - different modifiers

is this a valid warning? if not, should sparse be ignoring these.

Note:
> include/linux/bitmap.h:extern bool __pure __bitmap_or_equal(const unsigned long *src1,
> lib/bitmap.c:bool __bitmap_or_equal(const unsigned long *bitmap1,


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Ben Dooks				http://www.codethink.co.uk/
Senior Engineer				Codethink - Providing Genius

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