linux-kernel - Re: [PATCH v3 5/5] kbuild: Allow adding modules into the FIT ramdisk

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <c02f08cc-0613-4e57-886f-9d49803cea00@infradead.org>
Date: Mon, 22 Sep 2025 16:07:59 -0700
From: Randy Dunlap <rdunlap@...radead.org>
To: Simon Glass <sjg@...omium.org>, linux-arm-kernel@...ts.infradead.org
Cc: Nicolas Schier <nicolas@...sle.eu>, Tom Rini <trini@...sulko.com>,
 Ahmad Fatoum <a.fatoum@...gutronix.de>, J . Neuschäfer
 <j.ne@...teo.net>, Masahiro Yamada <masahiroy@...nel.org>,
 Chen-Yu Tsai <wenst@...omium.org>, Ard Biesheuvel <ardb@...nel.org>,
 Han Shen <shenhan@...gle.com>, Josh Poimboeuf <jpoimboe@...nel.org>,
 Kees Cook <kees@...nel.org>, Nathan Chancellor <nathan@...nel.org>,
 Nicolas Schier <nicolas.schier@...ux.dev>, Rong Xu <xur@...gle.com>,
 linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 5/5] kbuild: Allow adding modules into the FIT ramdisk

Hi,

On 9/22/25 3:48 PM, Simon Glass wrote:
> Support 'make image.fit FIT_MODULES=1' to put all the modules into a
> ramdisk image within the FIT.
> 
> Signed-off-by: Simon Glass <sjg@...omium.org>
> Suggested-by: Ahmad Fatoum <a.fatoum@...gutronix.de>
> ---

Regarding $subject, a comment in scripts/make_fit.py says:

  Note that this tool does not yet support adding a ramdisk / initrd.

Is the comment incorrect or are you changing that feature here?

Thanks.

> 
> (no changes since v1)
> 
>  scripts/Makefile.lib | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
> index 1d581ba5df66..2e880d9b4706 100644
> --- a/scripts/Makefile.lib
> +++ b/scripts/Makefile.lib
> @@ -398,9 +398,15 @@ MAKE_FIT := $(srctree)/scripts/make_fit.py
>  # Use this to override the compression algorithm
>  FIT_COMPRESSION ?= gzip
>  
> +# Set this to 1 to include an initrd with all the kernel modules
> +FIT_MODULES ?= 0
> +ifeq ($(FIT_MODULES),1)
> +EXTRA := -B $(objtree) -m
> +endif
> +
>  quiet_cmd_fit = FIT     $@
>        cmd_fit = $(MAKE_FIT) -o $@ --arch $(UIMAGE_ARCH) --os linux \
> -		--name '$(UIMAGE_NAME)' \
> +		--name '$(UIMAGE_NAME)' $(EXTRA) \
>  		$(if $(findstring 1,$(KBUILD_VERBOSE)),-v) \
>  		$(if $(FIT_DECOMPOSE_DTBS),--decompose-dtbs) \
>  		--compress $(FIT_COMPRESSION) -k $< @$(word 2,$^)

-- 
~Randy