This allows enabling support for extra hardware with just a module
param, without kernel/module recompilation.
Signed-off-by: Rafał Miłecki <[email protected]>
---
drivers/net/wireless/b43/Kconfig | 6 ------
drivers/net/wireless/b43/main.c | 16 ++++++++++++++--
2 files changed, 14 insertions(+), 8 deletions(-)
diff --git a/drivers/net/wireless/b43/Kconfig b/drivers/net/wireless/b43/Kconfig
index 3f21e0b..51ff0b1 100644
--- a/drivers/net/wireless/b43/Kconfig
+++ b/drivers/net/wireless/b43/Kconfig
@@ -31,12 +31,6 @@ config B43_BCMA
depends on B43 && (BCMA = y || BCMA = B43)
default y
-config B43_BCMA_EXTRA
- bool "Hardware support that overlaps with the brcmsmac driver"
- depends on B43_BCMA
- default n if BRCMSMAC
- default y
-
config B43_SSB
bool
depends on B43 && (SSB = y || SSB = B43)
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index a95b77a..583993c 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -113,13 +113,19 @@ static int b43_modparam_pio = 0;
module_param_named(pio, b43_modparam_pio, int, 0644);
MODULE_PARM_DESC(pio, "Use PIO accesses by default: 0=DMA, 1=PIO");
+#ifdef CONFIG_BRCMSMAC
+static int modparam_allhwsupport;
+#else
+static int modparam_allhwsupport = 1;
+#endif
+module_param_named(allhwsupport, modparam_allhwsupport, int, 0444);
+MODULE_PARM_DESC(allhwsupport, "Enable support for all hardware (even it if overlaps with the brcmsmac driver)");
+
#ifdef CONFIG_B43_BCMA
static const struct bcma_device_id b43_bcma_tbl[] = {
BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x11, BCMA_ANY_CLASS),
-#ifdef CONFIG_B43_BCMA_EXTRA
BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x17, BCMA_ANY_CLASS),
BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x18, BCMA_ANY_CLASS),
-#endif
BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x1D, BCMA_ANY_CLASS),
BCMA_CORETABLE_END
};
@@ -5396,6 +5402,12 @@ static int b43_bcma_probe(struct bcma_device *core)
struct b43_wl *wl;
int err;
+ if (!modparam_allhwsupport &&
+ (core->id.rev == 0x17 || core->id.rev == 0x18)) {
+ pr_err("Support for cores revisions 0x17 and 0x18 disabled by module param allhwsupport=0. Try b43.allhwsupport=1\n");
+ return -ENOTSUPP;
+ }
+
dev = b43_bus_dev_bcma_init(core);
if (!dev)
return -ENODEV;
--
1.7.10.4
2013/6/25 Jonas Gorski <[email protected]>:
> On Tue, Jun 25, 2013 at 5:34 PM, Rafał Miłecki <[email protected]> wrote:
>> This allows enabling support for extra hardware with just a module
>> param, without kernel/module recompilation.
>>
>> Signed-off-by: Rafał Miłecki <[email protected]>
>> ---
>> drivers/net/wireless/b43/Kconfig | 6 ------
>> drivers/net/wireless/b43/main.c | 16 ++++++++++++++--
>> 2 files changed, 14 insertions(+), 8 deletions(-)
>>
>> diff --git a/drivers/net/wireless/b43/Kconfig b/drivers/net/wireless/b43/Kconfig
>> index 3f21e0b..51ff0b1 100644
>> --- a/drivers/net/wireless/b43/Kconfig
>> +++ b/drivers/net/wireless/b43/Kconfig
>> @@ -31,12 +31,6 @@ config B43_BCMA
>> depends on B43 && (BCMA = y || BCMA = B43)
>> default y
>>
>> -config B43_BCMA_EXTRA
>> - bool "Hardware support that overlaps with the brcmsmac driver"
>> - depends on B43_BCMA
>> - default n if BRCMSMAC
>> - default y
>> -
>> config B43_SSB
>> bool
>> depends on B43 && (SSB = y || SSB = B43)
>> diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
>> index a95b77a..583993c 100644
>> --- a/drivers/net/wireless/b43/main.c
>> +++ b/drivers/net/wireless/b43/main.c
>> @@ -113,13 +113,19 @@ static int b43_modparam_pio = 0;
>> module_param_named(pio, b43_modparam_pio, int, 0644);
>> MODULE_PARM_DESC(pio, "Use PIO accesses by default: 0=DMA, 1=PIO");
>>
>> +#ifdef CONFIG_BRCMSMAC
>
> This is only defined if BRCMSMAC is built-in, but not if it is built
> as a module; then it's CONFIG_BRCMSMAC_MODULE, which is probably not
> what you want. To easily catch both, use IS_ENABLED(CONFIG_BRCMSMAC).
>
>> +static int modparam_allhwsupport;
>> +#else
>> +static int modparam_allhwsupport = 1;
>> +#endif
>
> And since IS_ENABLED returns 0 or 1 you should be able to reduce it to one line:
>
> static int modparam_allhwsupport = !IS_ENABLED(CONFIG_BRCMSMAC);
I love learning new tricks all the time :)
--
Rafał
On Tue, Jun 25, 2013 at 5:34 PM, Rafał Miłecki <[email protected]> wrote:
> This allows enabling support for extra hardware with just a module
> param, without kernel/module recompilation.
>
> Signed-off-by: Rafał Miłecki <[email protected]>
> ---
> drivers/net/wireless/b43/Kconfig | 6 ------
> drivers/net/wireless/b43/main.c | 16 ++++++++++++++--
> 2 files changed, 14 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/net/wireless/b43/Kconfig b/drivers/net/wireless/b43/Kconfig
> index 3f21e0b..51ff0b1 100644
> --- a/drivers/net/wireless/b43/Kconfig
> +++ b/drivers/net/wireless/b43/Kconfig
> @@ -31,12 +31,6 @@ config B43_BCMA
> depends on B43 && (BCMA = y || BCMA = B43)
> default y
>
> -config B43_BCMA_EXTRA
> - bool "Hardware support that overlaps with the brcmsmac driver"
> - depends on B43_BCMA
> - default n if BRCMSMAC
> - default y
> -
> config B43_SSB
> bool
> depends on B43 && (SSB = y || SSB = B43)
> diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
> index a95b77a..583993c 100644
> --- a/drivers/net/wireless/b43/main.c
> +++ b/drivers/net/wireless/b43/main.c
> @@ -113,13 +113,19 @@ static int b43_modparam_pio = 0;
> module_param_named(pio, b43_modparam_pio, int, 0644);
> MODULE_PARM_DESC(pio, "Use PIO accesses by default: 0=DMA, 1=PIO");
>
> +#ifdef CONFIG_BRCMSMAC
This is only defined if BRCMSMAC is built-in, but not if it is built
as a module; then it's CONFIG_BRCMSMAC_MODULE, which is probably not
what you want. To easily catch both, use IS_ENABLED(CONFIG_BRCMSMAC).
> +static int modparam_allhwsupport;
> +#else
> +static int modparam_allhwsupport = 1;
> +#endif
And since IS_ENABLED returns 0 or 1 you should be able to reduce it to one line:
static int modparam_allhwsupport = !IS_ENABLED(CONFIG_BRCMSMAC);
Jonas
Seems OK to me...
On Tue, Jun 25, 2013 at 05:34:55PM +0200, Rafał Miłecki wrote:
> This allows enabling support for extra hardware with just a module
> param, without kernel/module recompilation.
>
> Signed-off-by: Rafał Miłecki <[email protected]>
> ---
> drivers/net/wireless/b43/Kconfig | 6 ------
> drivers/net/wireless/b43/main.c | 16 ++++++++++++++--
> 2 files changed, 14 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/net/wireless/b43/Kconfig b/drivers/net/wireless/b43/Kconfig
> index 3f21e0b..51ff0b1 100644
> --- a/drivers/net/wireless/b43/Kconfig
> +++ b/drivers/net/wireless/b43/Kconfig
> @@ -31,12 +31,6 @@ config B43_BCMA
> depends on B43 && (BCMA = y || BCMA = B43)
> default y
>
> -config B43_BCMA_EXTRA
> - bool "Hardware support that overlaps with the brcmsmac driver"
> - depends on B43_BCMA
> - default n if BRCMSMAC
> - default y
> -
> config B43_SSB
> bool
> depends on B43 && (SSB = y || SSB = B43)
> diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
> index a95b77a..583993c 100644
> --- a/drivers/net/wireless/b43/main.c
> +++ b/drivers/net/wireless/b43/main.c
> @@ -113,13 +113,19 @@ static int b43_modparam_pio = 0;
> module_param_named(pio, b43_modparam_pio, int, 0644);
> MODULE_PARM_DESC(pio, "Use PIO accesses by default: 0=DMA, 1=PIO");
>
> +#ifdef CONFIG_BRCMSMAC
> +static int modparam_allhwsupport;
> +#else
> +static int modparam_allhwsupport = 1;
> +#endif
> +module_param_named(allhwsupport, modparam_allhwsupport, int, 0444);
> +MODULE_PARM_DESC(allhwsupport, "Enable support for all hardware (even it if overlaps with the brcmsmac driver)");
> +
> #ifdef CONFIG_B43_BCMA
> static const struct bcma_device_id b43_bcma_tbl[] = {
> BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x11, BCMA_ANY_CLASS),
> -#ifdef CONFIG_B43_BCMA_EXTRA
> BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x17, BCMA_ANY_CLASS),
> BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x18, BCMA_ANY_CLASS),
> -#endif
> BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x1D, BCMA_ANY_CLASS),
> BCMA_CORETABLE_END
> };
> @@ -5396,6 +5402,12 @@ static int b43_bcma_probe(struct bcma_device *core)
> struct b43_wl *wl;
> int err;
>
> + if (!modparam_allhwsupport &&
> + (core->id.rev == 0x17 || core->id.rev == 0x18)) {
> + pr_err("Support for cores revisions 0x17 and 0x18 disabled by module param allhwsupport=0. Try b43.allhwsupport=1\n");
> + return -ENOTSUPP;
> + }
> +
> dev = b43_bus_dev_bcma_init(core);
> if (!dev)
> return -ENODEV;
> --
> 1.7.10.4
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
--
John W. Linville Someday the world will need a hero, and you
[email protected] might be all we have. Be ready.