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Date:	Wed, 24 Dec 2008 11:21:32 -0800
From:	"Luis R. Rodriguez" <lrodriguez@...eros.com>
To:	Randy Dunlap <randy.dunlap@...cle.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>
Subject: Re: mmotm 2008-12-24-01-20 uploaded (ath9k)

On Wed, Dec 24, 2008 at 10:04:43AM -0800, Randy Dunlap wrote:
> akpm@...ux-foundation.org wrote:
> > The mm-of-the-moment snapshot 2008-12-24-01-20 has been uploaded to
> >
> >    http://userweb.kernel.org/~akpm/mmotm/
> >
> > and will soon be available at
> >
> >    git://git.zen-sources.org/zen/mmotm.git
> 
> 
> ath9k build fails with:
> 
> drivers/built-in.o: In function `ath_detach':
> main.c:(.text+0xee655): undefined reference to `rfkill_unregister'
> drivers/built-in.o: In function `ath_rfkill_poll':
> main.c:(.text+0xeedfa): undefined reference to `rfkill_force_state'
> drivers/built-in.o: In function `ath9k_start':
> main.c:(.text+0xefe79): undefined reference to `rfkill_register'
> main.c:(.text+0xeff20): undefined reference to `rfkill_free'
> drivers/built-in.o: In function `ath_pci_probe':
> main.c:(.text+0xf0f73): undefined reference to `rfkill_allocate'
> 
> when ath9k is built-in and CONFIG_RFKILL=m.
> 
> config attached.

<-- snip -->

> # CONFIG_MAC80211_DEBUGFS is not set
> # CONFIG_MAC80211_DEBUG_MENU is not set
> CONFIG_RFKILL=m
> CONFIG_RFKILL_INPUT=m
> CONFIG_RFKILL_LEDS=y

Try this (already merged into wireless-testing):

commit bb2476392c584a769f88421fcc9de3408656d05d
Author: Senthil Balasubramanian <senthilkumar@...eros.com>
Date:   Thu Nov 13 18:00:02 2008 +0530

    ath9k: Build RFKILL feature even when RFKILL subsystem is a MODULE
    
    Currently, ath9k builds RFKILL feature only when the RFKILL subsystem
    is built part of the kernel. Build RFKILL feature regardless of whether
    RFKILL subsystem is built as a MODULE or part of the kernel.
    
    Signed-off-by: Senthil Balasubramanian <senthilkumar@...eros.com>
    Signed-off-by: John W. Linville <linville@...driver.com>

diff --git a/drivers/net/wireless/ath9k/ath9k.h b/drivers/net/wireless/ath9k/ath9k.h
index 3a180ce..6be2b94 100644
--- a/drivers/net/wireless/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath9k/ath9k.h
@@ -904,7 +904,7 @@ u32 ath9k_hw_gpio_get(struct ath_hal *ah, u32 gpio);
 void ath9k_hw_cfg_output(struct ath_hal *ah, u32 gpio,
 			 u32 ah_signal_type);
 void ath9k_hw_set_gpio(struct ath_hal *ah, u32 gpio, u32 val);
-#ifdef CONFIG_RFKILL
+#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
 void ath9k_enable_rfkill(struct ath_hal *ah);
 #endif
 int ath9k_hw_select_antconfig(struct ath_hal *ah, u32 cfg);
diff --git a/drivers/net/wireless/ath9k/core.c b/drivers/net/wireless/ath9k/core.c
index 5f5184a..3e94dab 100644
--- a/drivers/net/wireless/ath9k/core.c
+++ b/drivers/net/wireless/ath9k/core.c
@@ -705,7 +705,7 @@ void ath_stop(struct ath_softc *sc)
 	} else
 		sc->sc_rxlink = NULL;
 
-#ifdef CONFIG_RFKILL
+#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
 	if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
 		cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll);
 #endif
diff --git a/drivers/net/wireless/ath9k/hw.c b/drivers/net/wireless/ath9k/hw.c
index 7ca2efa..dc30703 100644
--- a/drivers/net/wireless/ath9k/hw.c
+++ b/drivers/net/wireless/ath9k/hw.c
@@ -2341,7 +2341,7 @@ bool ath9k_hw_reset(struct ath_hal *ah, struct ath9k_channel *chan,
 	ath9k_hw_init_interrupt_masks(ah, ah->ah_opmode);
 	ath9k_hw_init_qos(ah);
 
-#ifdef CONFIG_RFKILL
+#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
 	if (ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
 		ath9k_enable_rfkill(ah);
 #endif
@@ -3516,7 +3516,7 @@ bool ath9k_hw_fill_cap_info(struct ath_hal *ah)
 
 	pCap->hw_caps |= ATH9K_HW_CAP_ENHANCEDPM;
 
-#ifdef CONFIG_RFKILL
+#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
 	ah->ah_rfsilent = ath9k_hw_get_eeprom(ah, EEP_RF_SILENT);
 	if (ah->ah_rfsilent & EEP_RFSILENT_ENABLED) {
 		ah->ah_rfkill_gpio =
@@ -3773,7 +3773,7 @@ void ath9k_hw_set_gpio(struct ath_hal *ah, u32 gpio, u32 val)
 		AR_GPIO_BIT(gpio));
 }
 
-#ifdef CONFIG_RFKILL
+#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
 void ath9k_enable_rfkill(struct ath_hal *ah)
 {
 	REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL,
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 04342ec..97f0b47 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -595,7 +595,7 @@ fail:
 	ath_deinit_leds(sc);
 }
 
-#ifdef CONFIG_RFKILL
+#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
 
 /*******************/
 /*	Rfkill	   */
@@ -839,7 +839,7 @@ static void ath_detach(struct ath_softc *sc)
 
 	ath_deinit_leds(sc);
 
-#ifdef CONFIG_RFKILL
+#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
 	ath_deinit_rfkill(sc);
 #endif
 	ath_rate_control_unregister();
@@ -922,7 +922,7 @@ static int ath_attach(u16 devid, struct ath_softc *sc)
 	/* Initialize LED control */
 	ath_init_leds(sc);
 
-#ifdef CONFIG_RFKILL
+#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
 	/* Initialze h/w Rfkill */
 	if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
 		INIT_DELAYED_WORK(&sc->rf_kill.rfkill_poll, ath_rfkill_poll);
@@ -979,7 +979,7 @@ static int ath9k_start(struct ieee80211_hw *hw)
 		goto exit;
 	}
 
-#ifdef CONFIG_RFKILL
+#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
 	error = ath_start_rfkill_poll(sc);
 #endif
 
@@ -1724,7 +1724,7 @@ static int ath_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 
 	ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1);
 
-#ifdef CONFIG_RFKILL
+#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
 	if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
 		cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll);
 #endif
@@ -1761,7 +1761,7 @@ static int ath_pci_resume(struct pci_dev *pdev)
 			    AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
 	ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1);
 
-#ifdef CONFIG_RFKILL
+#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
 	/*
 	 * check the h/w rfkill state on resume
 	 * and start the rfkill poll timer
--
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