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From: Randy Dunlap on 1 Dec 2009 01:50
Michal Nazarewicz wrote:
> From: Michal Nazarewicz <m.nazarewicz(a)samsung.com>
>
> If g_ether and g_multi are both built CONFIG_USB_ETH_RNDIS symbol
> may be redefined in the later and, whats even worse, g_ether's settings
> may affect g_multi's. This adds a USB_ETH_RNDIS symbol defined at the
> beginning of ether.c and multi.c according toproper KConfig settings.
>
> Signed-off-by: Michal Nazarewicz <m.nazarewicz(a)samsung.com>
> Cc: Marek Szyprowski <m.szyprowski(a)samsung.com>
> ---
> drivers/usb/gadget/ether.c | 16 ++++++++++++----
> drivers/usb/gadget/multi.c | 13 ++++++++-----
> drivers/usb/gadget/u_ether.h | 2 +-
> 3 files changed, 21 insertions(+), 10 deletions(-)
>
>> On Wed, 25 Nov 2009 12:59:46 +0100 Michal Nazarewicz wrote:
>>> CONFIG_USB_ETH_RNDIS may be defined when g_ether is built causing
>>> warning when multi.c tries to redefine its value. Changed to first
>>> undefine CONFIG_USB_ETH_RNDIS in multi.c.
>
> On Sat, 28 Nov 2009 19:34:29 +0100, Randy Dunlap wrote:
>> Is there no kconfig way to solve this?
>> You shouldn't be messing with kconfig symbols in source files...
>
> Messing with KConfig symbols was less intrusive method of fixing the
> warning but if anyone feels like it's not the proper method here's
> another patch.

This is a little better -- thanks.
Acked-by: Randy Dunlap <randy.dunlap(a)oracle.com>


> diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c
> index 167cb2a..141372b 100644
> --- a/drivers/usb/gadget/ether.c
> +++ b/drivers/usb/gadget/ether.c
> @@ -25,6 +25,14 @@
> #include <linux/kernel.h>
> #include <linux/utsname.h>
>
> +
> +#if defined USB_ETH_RNDIS
> +# undef USB_ETH_RNDIS
> +#endif
> +#ifdef CONFIG_USB_ETH_RNDIS
> +# define USB_ETH_RNDIS y
> +#endif
> +
> #include "u_ether.h"
>
>
> @@ -66,7 +74,7 @@
> #define DRIVER_DESC "Ethernet Gadget"
> #define DRIVER_VERSION "Memorial Day 2008"
>
> -#ifdef CONFIG_USB_ETH_RNDIS
> +#ifdef USB_ETH_RNDIS
> #define PREFIX "RNDIS/"
> #else
> #define PREFIX ""
> @@ -87,7 +95,7 @@
>
> static inline bool has_rndis(void)
> {
> -#ifdef CONFIG_USB_ETH_RNDIS
> +#ifdef USB_ETH_RNDIS
> return true;
> #else
> return false;
> @@ -110,7 +118,7 @@ static inline bool has_rndis(void)
>
> #include "f_ecm.c"
> #include "f_subset.c"
> -#ifdef CONFIG_USB_ETH_RNDIS
> +#ifdef USB_ETH_RNDIS
> #include "f_rndis.c"
> #include "rndis.c"
> #endif
> @@ -251,7 +259,7 @@ static struct usb_configuration rndis_config_driver = {
>
> /*-------------------------------------------------------------------------*/
>
> -#ifdef CONFIG_USB_ETH_EEM
> +#ifdef USB_ETH_EEM
> static int use_eem = 1;
> #else
> static int use_eem;
> diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c
> index 64711fe..4295601 100644
> --- a/drivers/usb/gadget/multi.c
> +++ b/drivers/usb/gadget/multi.c
> @@ -26,8 +26,11 @@
> #include <linux/utsname.h>
>
>
> -#if defined CONFIG_USB_G_MULTI_RNDIS
> -# define CONFIG_USB_ETH_RNDIS y
> +#if defined USB_ETH_RNDIS
> +# undef USB_ETH_RNDIS
> +#endif
> +#ifdef CONFIG_USB_ETH_RNDIS
> +# define USB_ETH_RNDIS y
> #endif
>
>
> @@ -59,7 +62,7 @@
>
> #include "f_ecm.c"
> #include "f_subset.c"
> -#ifdef CONFIG_USB_ETH_RNDIS
> +#ifdef USB_ETH_RNDIS
> # include "f_rndis.c"
> # include "rndis.c"
> #endif
> @@ -150,7 +153,7 @@ FSG_MODULE_PARAMETERS(/* no prefix */, mod_data);
> static struct fsg_common *fsg_common;
>
>
> -#ifdef CONFIG_USB_ETH_RNDIS
> +#ifdef USB_ETH_RNDIS
>
> static int __init rndis_do_config(struct usb_configuration *c)
> {
> @@ -292,7 +295,7 @@ static int __init multi_bind(struct usb_composite_dev *cdev)
> strings_dev[STRING_PRODUCT_IDX].id = status;
> device_desc.iProduct = status;
>
> -#ifdef CONFIG_USB_ETH_RNDIS
> +#ifdef USB_ETH_RNDIS
> /* register our first configuration */
> status = usb_add_config(cdev, &rndis_config_driver);
> if (status < 0)
> diff --git a/drivers/usb/gadget/u_ether.h b/drivers/usb/gadget/u_ether.h
> index 91b39ff..fd55f45 100644
> --- a/drivers/usb/gadget/u_ether.h
> +++ b/drivers/usb/gadget/u_ether.h
> @@ -112,7 +112,7 @@ int geth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]);
> int ecm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]);
> int eem_bind_config(struct usb_configuration *c);
>
> -#ifdef CONFIG_USB_ETH_RNDIS
> +#ifdef USB_ETH_RNDIS
>
> int rndis_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]);
>

There are still some g_multi build problems.
The following patch is also needed -- please apply.

---
From: Randy Dunlap <randy.dunlap(a)oracle.com>

USB_G_MULTI uses block and net interface functions, so make it
depend on both of those. Otherwise there are lots of build errors.

Fix USB_G_MULTI config help text typos and copy/paste error.

Signed-off-by: Randy Dunlap <randy.dunlap(a)oracle.com>
---
drivers/usb/gadget/Kconfig | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)

--- linux-next-20091130.orig/drivers/usb/gadget/Kconfig
+++ linux-next-20091130/drivers/usb/gadget/Kconfig
@@ -814,16 +814,17 @@ config USB_CDC_COMPOSITE

config USB_G_MULTI
tristate "Multifunction Composite Gadget (EXPERIMENTAL)"
+ depends on BLOCK && NET
help
The Multifunction Composite Gadget provides Ethernet (RNDIS
and/or CDC Ethernet), mass storage and ACM serial link
interfaces.

- You will be asked too choose which of the two configurations are
+ You will be asked to choose which of the two configurations is
to be available in the gadget. At least one configuration must
- be choosen to make gadget usable. Selecting more then one
+ be chosen to make the gadget usable. Selecting more than one
configuration will prevent Windows from automatically detecting
- the gadget as a composite gadget an INF file will be needed to
+ the gadget as a composite gadget, so an INF file will be needed to
use the gadget.

Say "y" to link the driver statically, or "m" to build a
@@ -836,8 +837,8 @@ config USB_G_MULTI_RNDIS
help
This option enables a configuration with RNDIS, CDC Serial and
Mass Storage functions available in the Multifunction Composite
- Gadget. This is configuration dedicated for Windows since RNDIS
- is Microsfot's protocol.
+ Gadget. This is the configuration dedicated for Windows since RNDIS
+ is Microsoft's protocol.

If unsure, say "y".

@@ -848,8 +849,7 @@ config USB_G_MULTI_CDC
help
This option enables a configuration with CDC Ethernet (ECM), CDC
Serial and Mass Storage functions available in the Multifunction
- Composite Gadget. This is configuration dedicated for Windows
- since RNDIS is Microsfot's protocol.
+ Composite Gadget.

If unsure, say "y".

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