linux-kernel - Re: [PATCH] firmware_loader: rework crypto dependencies

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Message-ID: <8978fc5c-73fc-c654-dce2-d3b22511da64@linux.intel.com>
Date:   Fri, 14 Apr 2023 11:22:51 +0200
From:   Amadeusz Sławiński 
        <amadeuszx.slawinski@...ux.intel.com>
To:     Arnd Bergmann <arnd@...nel.org>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Russ Weight <russell.h.weight@...el.com>
Cc:     linux-crypto@...r.kernel.org,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Tianfei zhang <tianfei.zhang@...el.com>,
        Cezary Rojewski <cezary.rojewski@...el.com>,
        Takashi Iwai <tiwai@...e.de>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] firmware_loader: rework crypto dependencies

On 4/14/2023 10:03 AM, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> The crypto dependencies for the firmwware loader are incomplete,
> in particular a built-in FW_LOADER fails to link against a modular
> crypto hash driver:
> 
> ld.lld: error: undefined symbol: crypto_alloc_shash
> ld.lld: error: undefined symbol: crypto_shash_digest
> ld.lld: error: undefined symbol: crypto_destroy_tfm
>>>> referenced by main.c
>>>>                drivers/base/firmware_loader/main.o:(fw_log_firmware_info) in archive vmlinux.a
> 
> Rework this to use the usual 'select' from the driver module,
> to respect the built-in vs module dependencies, and add a
> more verbose crypto dependency to the debug option to prevent
> configurations that lead to a link failure.
> 
> Fixes: 02fe26f25325 ("firmware_loader: Add debug message with checksum for FW file")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
> Tested on a few hundred randconfig builds
> ---

When I thought I've tested all combinations... ;)

Thanks!

Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@...ux.intel.com>