From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Warren <swarren@wwwdotorg.org>
Date: Tue, 12 Apr 2016 14:00:21 -0600
Subject: [U-Boot] [PATCH 05/44] Allow iotrace byte access to use an
 address of any size
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 <1460256336-30436-6-git-send-email-sjg@chromium.org>
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On 04/09/2016 08:44 PM, Simon Glass wrote:
> If an address is used with readb() and writeb() which is smaller than the
> expected size (e.g. 32-bit value on a machine with 64-bit addresses), a
> warning results. Fix this by adding a cast.

> diff --git a/include/iotrace.h b/include/iotrace.h

> -#define readb(addr)	iotrace_readb((const void *)(addr))
> +#define readb(addr)	iotrace_readb((const void *)((uintptr_t)addr))

Nit: I think (type)(othertype)val is as good as (type)((othertype)val)