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Date:	Sat, 02 Nov 2013 08:10:33 +0400
From:	Рустафа Джамурахметов <>
To:	Andrew Morton <>
Cc:	Michal Nazarewicz <>,
	"" <>
Subject: Re: [PATCH] drivers: w1: make w1_slave::flags long to avoid casts


01.11.2013, 23:30, "Andrew Morton" <>:

> set_bit() operates on longs.  So if we do
> struct foo {
>         u32 a;
>         u32 b;
> } f;
>         ...
>         set_bit(0, (long *)&f.a);
>         ...
> then we'll scribble on f.b on a big-endian 64-bit machine.

Argh, why would we just don't do that? Its in-memory field, it can be anything,
I wouldn't be surprised if it even can be non-atomic because of proper locks already
being held
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