Subject: Re: [PATCH RFC v4 06/10] net: qualcomm: make qca_common a separate kernel module

From: Dan Williams <[email-masked]>
Date: Mon, 27 Mar 2017 10:44:04 -0500

On Mon, 2017-03-27 at 15:37 +0200, Stefan Wahren wrote:
> In order to share common functions between QCA7000 SPI and UART
> protocol
> driver the qca_common needs to be a separate kernel module.

Maybe "qca_eth_common"?  There are many things Qualcomm, slightly fewer
things Qualcomm Atheros, and "qca_common" isn't very descriptive.

Dan

> Signed-off-by: Stefan Wahren <[email-masked]>
> ---
>  drivers/net/ethernet/qualcomm/Kconfig      |  8 +++++++-
>  drivers/net/ethernet/qualcomm/Makefile     |  5 +++--
>  drivers/net/ethernet/qualcomm/qca_common.c | 10 ++++++++++
>  3 files changed, 20 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/ethernet/qualcomm/Kconfig
> b/drivers/net/ethernet/qualcomm/Kconfig
> index d7720bf..b4c369d 100644
> --- a/drivers/net/ethernet/qualcomm/Kconfig
> +++ b/drivers/net/ethernet/qualcomm/Kconfig
> @@ -16,7 +16,13 @@ config NET_VENDOR_QUALCOMM
>  if NET_VENDOR_QUALCOMM
>  
>  config QCA7000
> -	tristate "Qualcomm Atheros QCA7000 support"
> +	tristate
> +	help
> +	  This enables support for the Qualcomm Atheros QCA7000.
> +
> +config QCA7000_SPI
> +	tristate "Qualcomm Atheros QCA7000 SPI support"
> +	select QCA7000
>  	depends on SPI_MASTER && OF
>  	---help---
>  	  This SPI protocol driver supports the Qualcomm Atheros
> QCA7000.
> diff --git a/drivers/net/ethernet/qualcomm/Makefile
> b/drivers/net/ethernet/qualcomm/Makefile
> index 8080570..00d8729 100644
> --- a/drivers/net/ethernet/qualcomm/Makefile
> +++ b/drivers/net/ethernet/qualcomm/Makefile
> @@ -2,7 +2,8 @@
>  # Makefile for the Qualcomm network device drivers.
>  #
>  
> -obj-$(CONFIG_QCA7000) += qcaspi.o
> -qcaspi-objs := qca_spi.o qca_common.o qca_7k.o qca_debug.o
> +obj-$(CONFIG_QCA7000) += qca_common.o
> +obj-$(CONFIG_QCA7000_SPI) += qcaspi.o
> +qcaspi-objs := qca_7k.o qca_debug.o qca_spi.o
>  
>  obj-y += emac/
> diff --git a/drivers/net/ethernet/qualcomm/qca_common.c
> b/drivers/net/ethernet/qualcomm/qca_common.c
> index d930524..f2c9e76 100644
> --- a/drivers/net/ethernet/qualcomm/qca_common.c
> +++ b/drivers/net/ethernet/qualcomm/qca_common.c
> @@ -21,7 +21,9 @@
>   *   by an atheros frame while transmitted over a serial channel;
>   */
>  
> +#include <linux/init.h>
>  #include <linux/kernel.h>
> +#include <linux/module.h>
>  
>  #include "qca_common.h"
>  
> @@ -46,6 +48,7 @@ qcafrm_create_header(u8 *buf, u16 length)
>  
>  	return QCAFRM_HEADER_LEN;
>  }
> +EXPORT_SYMBOL_GPL(qcafrm_create_header);
>  
>  u16
>  qcafrm_create_footer(u8 *buf)
> @@ -57,6 +60,7 @@ qcafrm_create_footer(u8 *buf)
>  	buf[1] = 0x55;
>  	return QCAFRM_FOOTER_LEN;
>  }
> +EXPORT_SYMBOL_GPL(qcafrm_create_footer);
>  
>  /*   Gather received bytes and try to extract a full ethernet frame
> by
>   *   following a simple state machine.
> @@ -154,3 +158,9 @@ qcafrm_fsm_decode(struct qcafrm_handle *handle,
> u8 *buf, u16 buf_len, u8 recv_by
>  
>  	return ret;
>  }
> +EXPORT_SYMBOL_GPL(qcafrm_fsm_decode);
> +
> +MODULE_DESCRIPTION("Qualcomm Atheros Common");
> +MODULE_AUTHOR("Qualcomm Atheros Communications");
> +MODULE_AUTHOR("Stefan Wahren <[email-masked]>");
> +MODULE_LICENSE("Dual BSD/GPL");