linux-kernel - Re: [RESEND PATCH v3] MODSIGN: Fix including certificate twice when the signing

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Date:	Thu, 16 Jan 2014 12:43:13 +0000
From:	David Howells <dhowells@...hat.com>
To:	"Lee, Chun-Yi" <joeyli.kernel@...il.com>
Cc:	dhowells@...hat.com, rusty@...tcorp.com.au,
	linux-kernel@...r.kernel.org, Chun-Yi Lee <jlee@...e.com>,
	Josh Boyer <jwboyer@...hat.com>,
	Randy Dunlap <rdunlap@...otime.net>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>,
	Michal Marek <mmarek@...e.com>
Subject: Re: [RESEND PATCH v3] MODSIGN: Fix including certificate twice when the signing_key.x509 already exists

Lee, Chun-Yi <joeyli.kernel@...il.com> wrote:

> +ifneq ($(realpath .), $(realpath $(srctree)))
> +X509_CERTIFICATES-y += $(wildcard $(srctree)/*.x509)
> +endif

This ought to be unnecessary, given the $(sort ...) here:

>  X509_CERTIFICATES-raw := $(sort $(foreach CERT,$(X509_CERTIFICATES-y), \
>  				$(or $(realpath $(CERT)),$(CERT))))

as that is supposed to remove duplicates.

However, I will admit there's a snag with my idea: $(realpath ...) doesn't
work if the argument path does not exist (hence the $(or ...)).

David
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