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Subject: Re: [PATCH 2/2] Platform integrity information in sysfs (version 9)
To:     Daniel Gutson <daniel.gutson@eclypsium.com>,
        Derek Kiernan <derek.kiernan@xilinx.com>,
        Tudor Ambarus <tudor.ambarus@microchip.com>,
        Miquel Raynal <miquel.raynal@bootlin.com>,
        Richard Weinberger <richard@nod.at>,
        Vignesh Raghavendra <vigneshr@ti.com>,
        Mika Westerberg <mika.westerberg@linux.intel.com>,
        Arnd Bergmann <arnd@arndb.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
        linux-kernel@vger.kernel.org, Richard Hughes <hughsient@gmail.com>,
        Alex Bazhaniuk <alex@eclypsium.com>,
        linux-mtd@lists.infradead.org
References: <20200930163714.12879-1-daniel.gutson@eclypsium.com>
 <20200930163714.12879-3-daniel.gutson@eclypsium.com>
From:   Randy Dunlap <rdunlap@infradead.org>
Message-ID: <82bb95bd-988f-3cc2-40f7-8ebfd20b09d9@infradead.org>
Date:   Sat, 3 Oct 2020 21:01:27 -0700
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On 9/30/20 9:37 AM, Daniel Gutson wrote:
> diff --git a/drivers/mtd/spi-nor/controllers/Kconfig b/drivers/mtd/spi-nor/controllers/Kconfig
> index 5c0e0ec2e6d1..e7eaef506fc2 100644
> --- a/drivers/mtd/spi-nor/controllers/Kconfig
> +++ b/drivers/mtd/spi-nor/controllers/Kconfig
> @@ -29,6 +29,7 @@ config SPI_NXP_SPIFI
>  
>  config SPI_INTEL_SPI
>  	tristate
> +	depends on PLATFORM_INTEGRITY_DATA

So SPI_INTEL_SPI_PCI selects SPI_INTEL_SPI:

config SPI_INTEL_SPI_PCI
	tristate "Intel PCH/PCU SPI flash PCI driver (DANGEROUS)"
	depends on X86 && PCI
	select SPI_INTEL_SPI

without checking that PLATFORM_INTEGRITY_DATA is set/enabled.

"select" does not follow any kconfig dependency chains, so when
PLATFORM_INTEGRITY_DATA is not enabled, this should be causing
a kconfig warning, which is not OK.


-- 
~Randy