linux-kernel - Re: [PATCH 1/4] modsign: Abort modules

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Message-ID: <1431998970.4510.12.camel@linux.vnet.ibm.com>
Date:	Mon, 18 May 2015 21:29:30 -0400
From:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
To:	David Woodhouse <David.Woodhouse@...el.com>
Cc:	dhowells@...hat.com, rusty@...tcorp.com.au, mmarek@...e.cz,
	mjg59@...f.ucam.org, keyrings@...ux-nfs.org,
	dmitry.kasatkin@...il.com, mcgrof@...e.com,
	linux-kernel@...r.kernel.org, seth.forshee@...onical.com,
	linux-security-module@...r.kernel.org
Subject: Re: [PATCH 1/4] modsign: Abort modules_install when signing fails

On Fri, 2015-05-15 at 17:52 +0100, David Woodhouse wrote:
> Signed-off-by: David Woodhouse <David.Woodhouse@...el.com>

I assume the patch descriptions will be added before being upstreamed.  

> ---
>  scripts/Makefile.modinst | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst
> index e48a4e9..07650ee 100644
> --- a/scripts/Makefile.modinst
> +++ b/scripts/Makefile.modinst
> @@ -22,7 +22,7 @@ quiet_cmd_modules_install = INSTALL $@
>      mkdir -p $(2) ; \
>      cp $@ $(2) ; \
>      $(mod_strip_cmd) $(2)/$(notdir $@) ; \
> -    $(mod_sign_cmd) $(2)/$(notdir $@) $(patsubst %,|| true,$(KBUILD_EXTMOD)) ; \
> +    $(mod_sign_cmd) $(2)/$(notdir $@) $(patsubst %,|| true,$(KBUILD_EXTMOD)) && \
>      $(mod_compress_cmd) $(2)/$(notdir $@)

With this patch, as expected the modules_install aborted on failure.  Is
there any way to capture the reason for the failure?   In my case,
dropping the '-j <num>' option resolved the problem.

Mimi

>  # Modules built outside the kernel source tree go into extra by default

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