linux-kernel - Re: [GIT *] Allow request_firmware() to be satisfied from in-kernel, use it in more drivers.

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Message-Id: <1216155444.26991.33.camel@shinybook.infradead.org>
Date:	Tue, 15 Jul 2008 13:57:24 -0700
From:	David Woodhouse <dwmw2@...radead.org>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	torvalds@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	linux-kernel@...r.kernel.org, sam@...nborg.org
Subject: Re: [GIT *] Allow request_firmware() to be satisfied from
	in-kernel, use it in more drivers.

On Tue, 2008-07-15 at 13:49 -0700, David Woodhouse wrote:
> Sam, why do we have FORCE on the rules for $(hostprogs-y)? It forces the
> ihex2fw tool to be rebuilt, which in turn forces all .HEX->.fw
> conversions to happen again, which means that 'make modules_install'
> wants to write to the source tree. That's a problem in some strange
> situations like Rafael's, where he builds on another host and exports
> the tree read-only by NFS.
> 
> Can we do this? ...

Alternatively, Rafael, does this do it for you?

--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -150,11 +150,11 @@ $(obj)/%: $(obj)/%.ihex | $(objtree)/$(obj)/$$(dir %)
 # is actually meaningful, because the firmware has to be loaded in a certain
 # order rather than as a single binary blob. Thus, we convert them into our
 # more compact binary representation of ihex records (<linux/ihex.h>)
-$(obj)/%.fw: $(obj)/%.HEX $(obj)/ihex2fw | $(objtree)/$(obj)/$$(dir %)
+$(obj)/%.fw: $(obj)/%.HEX | $(obj)/ihex2fw $(objtree)/$(obj)/$$(dir %)
 	$(call cmd,ihex2fw)
 
 # .H16 is our own modified form of Intel HEX, with 16-bit length for records.
-$(obj)/%.fw: $(obj)/%.H16 $(obj)/ihex2fw | $(objtree)/$(obj)/$$(dir %)
+$(obj)/%.fw: $(obj)/%.H16 | $(obj)/ihex2fw $(objtree)/$(obj)/$$(dir %)
 	$(call cmd,h16tofw)
 
 $(firmware-dirs):

-- 
dwmw2

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