linux-kernel - Re: [PATCH] ARM: Fix dtb dependency to use order-only prerequisites

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Message-ID: <20130624205521.GA25530@codeaurora.org>
Date:	Mon, 24 Jun 2013 13:55:21 -0700
From:	David Brown <davidb@...eaurora.org>
To:	Doug Anderson <dianders@...omium.org>
Cc:	Russell King <rmk+kernel@....linux.org.uk>,
	Olof Johansson <olof@...om.net>,
	Mike Frysinger <vapier@...too.org>,
	Russell King <linux@....linux.org.uk>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: Fix dtb dependency to use order-only prerequisites

On Mon, Jun 24, 2013 at 01:41:57PM -0700, Doug Anderson wrote:
>The %.dtb dependency is specified to depend on the PHONY "scripts".
>That means that it'll build every time even if the underlying dtb file
>hasn't been touched.  Use an order-only prerequisites to fix this.
>Also mark "dtbs" as PHONY for correctness.
>
>This was broken in (70b0476 ARM: 7513/1: Make sure dtc is built before
>running it).
>
>Reported-by: Mike Frysinger <vapier@...too.org>
>Signed-off-by: Doug Anderson <dianders@...omium.org>
>---
> arch/arm/Makefile | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)

Reviewed-by: David Brown <davidb@...eaurora.org>

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