linux-kernel - Re: [PATCH] crypto: octeontx2 - Add dependency on NET_VENDOR

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Date:   Thu, 28 Jan 2021 23:04:59 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Herbert Xu <herbert@...dor.apana.org.au>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        "linux-next@...r.kernel.org" <linux-next@...r.kernel.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Linux Crypto Mailing List <linux-crypto@...r.kernel.org>,
        Boris Brezillon <bbrezillon@...nel.org>,
        Arnaud Ebalard <arno@...isbad.org>,
        Srujana Challa <schalla@...vell.com>,
        kernel test robot <lkp@...el.com>
Subject: Re: [PATCH] crypto: octeontx2 - Add dependency on NET_VENDOR_MARVELL

On 1/28/21 9:48 PM, Herbert Xu wrote:
> On Mon, Jan 25, 2021 at 09:41:12AM -0800, Randy Dunlap wrote:
>> on x86_64:
>>
>> ld: drivers/crypto/marvell/octeontx2/otx2_cptpf_main.o: in function `cptpf_flr_wq_handler':
>> otx2_cptpf_main.c:(.text+0x2b): undefined reference to `otx2_mbox_alloc_msg_rsp'
> 
> Thanks for the report.  The issue is that the crypto driver depends
> on code that sits under net so if that option is off then you'll end
> up with these errors.
> 
> ---8<---
> The crypto octeontx2 driver depends on the mbox code in the network
> tree.  It tries to select the MBOX Kconfig option but that option
> itself depends on many other options which are not selected, e.g.,
> CONFIG_NET_VENDOR_MARVELL.  It would be inappropriate to select them
> all as randomly prompting the user for network options which would
> oterhwise be disabled just because a crypto driver has been enabled
> makes no sense.
> 
> This patch fixes this by adding a dependency on NET_VENDOR_MARVELL.
> This makes the crypto driver invisible if the network option is off.
> 
> If the crypto driver must be visible even without the network stack
> then the shared mbox code should be moved out of drivers/net.
> 
> Reported-by: Randy Dunlap <rdunlap@...radead.org>
> Reported-by: kernel test robot <lkp@...el.com>
> Fixes: 5e8ce8334734 ("crypto: marvell - add Marvell OcteonTX2 CPT...")
> Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>

Thanks, Herbert.

Acked-by: Randy Dunlap <rdunlap@...radead.org> # build-tested


> diff --git a/drivers/crypto/marvell/Kconfig b/drivers/crypto/marvell/Kconfig
> index 2efbd79180ce..a188ad1fadd3 100644
> --- a/drivers/crypto/marvell/Kconfig
> +++ b/drivers/crypto/marvell/Kconfig
> @@ -41,6 +41,7 @@ config CRYPTO_DEV_OCTEONTX2_CPT
>  	depends on ARM64 || COMPILE_TEST
>  	depends on PCI_MSI && 64BIT
>  	depends on CRYPTO_LIB_AES
> +	depends on NET_VENDOR_MARVELL
>  	select OCTEONTX2_MBOX
>  	select CRYPTO_DEV_MARVELL
>  	select CRYPTO_SKCIPHER
> 


-- 
~Randy