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SubjectRe: [PATCH 1/2] crypto: add new driver for Marvell CESA
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(This patch needed a trivial context change in drivers/crypto/Makefile
to get it applied on top of next-20150409.)

On Thu, 2015-04-09 at 16:58 +0200, Boris Brezillon wrote:
> --- a/drivers/crypto/Kconfig
> +++ b/drivers/crypto/Kconfig
> @@ -164,8 +164,10 @@ config CRYPTO_DEV_MV_CESA
> depends on PLAT_ORION
> select CRYPTO_ALGAPI
> select CRYPTO_AES
> + select CRYPTO_DES
> select CRYPTO_BLKCIPHER2
> select CRYPTO_HASH
> + select SRAM
> help
> This driver allows you to utilize the Cryptographic Engines and
> Security Accelerator (CESA) which can be found on the Marvell Orion

> --- a/drivers/crypto/Makefile
> +++ b/drivers/crypto/Makefile

> -obj-$(CONFIG_CRYPTO_DEV_MV_CESA) += mv_cesa.o
> +obj-$(CONFIG_CRYPTO_DEV_MV_CESA) += marvell/

> --- /dev/null
> +++ b/drivers/crypto/marvell/Makefile
> @@ -0,0 +1 @@
> +obj-$(CONFIG_CRYPTO_DEV_MV_CESA) += cesa.o cipher.o hash.o tdma.o

For a modular build (which is all I tried) this doesn't do what you
probably want, as this will generate four modules. Assuming you want to
keep the mv_cesa name for the module, you could try something like:
obj-$(CONFIG_CRYPTO_DEV_MV_CESA) += mv_cesa.o
mv_cesa-objs := cesa.o cipher.o hash.o tdma.o

Does that do what you want?

> --- /dev/null
> +++ b/drivers/crypto/marvell/cesa.c

> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License version 2 as published
> + * by the Free Software Foundation.

This states the license is GPL v2.

> +static struct platform_driver marvell_cesa = {
> + .probe = mv_cesa_probe,
> + .remove = mv_cesa_remove,
> + .driver = {
> + .owner = THIS_MODULE,
> + .name = "mv_crypto",
> + .of_match_table = mv_cesa_of_match_table,
> + },
> +};
> +MODULE_ALIAS("platform:mv_crypto");

(It's nicer to make that macro be a part of the block of the other
MODULE_ macros.)

> +module_platform_driver(marvell_cesa);

(And it's nicer to have this directly follow the definition of
marvell_cesa.)

> +MODULE_AUTHOR("Boris Brezillon <boris.brezillon@free-electrons.com>");
> +MODULE_AUTHOR("Arnaud Ebalard <arno@natisbad.org>");
> +MODULE_DESCRIPTION("Support for Marvell's cryptographic engine");
> +MODULE_LICENSE("GPL");

And this states the license is GPL v2 or later. So either the comment at
the top of this file or this macro need to be changed.


Paul Bolle



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