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ath9k: move spectral scan support under a separate config symbol

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At the moment, spectral scan support, and with it RELAY, is always enabled
with ATH9K[_HTC]_DEBUGFS. Spectral scan support is currently the only user
of RELAY in ath9k, and it unconditionally reserves a relay channel.

Having debugfs support in ath9k is often useful even on very small embedded
routers, where we'd rather like to avoid the code size and RAM usage of the
relay support.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Matthias Schiffer 2017-11-27 18:56:22 +01:00 committed by Kalle Valo
parent dafa420360
commit 9df7ddc3ed
3 changed files with 14 additions and 8 deletions
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14
drivers/net/wireless/ath/ath9k/Kconfig
View File

@ -61,13 +61,12 @@ config ATH9K_DEBUGFS
depends on ATH9K && DEBUG_FS
select MAC80211_DEBUGFS
select ATH9K_COMMON_DEBUG
select RELAY
---help---
Say Y, if you need access to ath9k's statistics for
interrupts, rate control, etc.
Also required for changing debug message flags at run time.
As well as access to the FFT/spectral data and TX99.
Also required for changing debug message flags at run time and for
TX99.
config ATH9K_STATION_STATISTICS
bool "Detailed station statistics"
@ -177,7 +176,6 @@ config ATH9K_HTC_DEBUGFS
bool "Atheros ath9k_htc debugging"
depends on ATH9K_HTC && DEBUG_FS
select ATH9K_COMMON_DEBUG
select RELAY
---help---
Say Y, if you need access to ath9k_htc's statistics.
As well as access to the FFT/spectral data.
@ -192,3 +190,11 @@ config ATH9K_HWRNG
Say Y, feeds the entropy directly from the WiFi driver to the input
pool.
config ATH9K_COMMON_SPECTRAL
bool "Atheros ath9k/ath9k_htc spectral scan support"
depends on ATH9K_DEBUGFS || ATH9K_HTC_DEBUGFS
select RELAY
default n
---help---
Say Y to enable access to the FFT/spectral data via debugfs.

4
drivers/net/wireless/ath/ath9k/Makefile
View File

@ -62,8 +62,8 @@ ath9k_common-y:= common.o \
common-init.o \
common-beacon.o \
ath9k_common-$(CONFIG_ATH9K_COMMON_DEBUG) += common-debug.o \
common-spectral.o
ath9k_common-$(CONFIG_ATH9K_COMMON_DEBUG) += common-debug.o
ath9k_common-$(CONFIG_ATH9K_COMMON_SPECTRAL) += common-spectral.o
ath9k_htc-y += htc_hst.o \
hif_usb.o \

4
drivers/net/wireless/ath/ath9k/common-spectral.h
View File

@ -151,7 +151,7 @@ static inline u8 spectral_bitmap_weight(u8 *bins)
return bins[0] & 0x3f;
}
#ifdef CONFIG_ATH9K_COMMON_DEBUG
#ifdef CONFIG_ATH9K_COMMON_SPECTRAL
void ath9k_cmn_spectral_init_debug(struct ath_spec_scan_priv *spec_priv, struct dentry *debugfs_phy);
void ath9k_cmn_spectral_deinit_debug(struct ath_spec_scan_priv *spec_priv);
@ -183,6 +183,6 @@ static inline int ath_cmn_process_fft(struct ath_spec_scan_priv *spec_priv,
{
return 0;
}
#endif /* CONFIG_ATH9K_COMMON_DEBUG */
#endif /* CONFIG_ATH9K_COMMON_SPECTRAL */
#endif /* SPECTRAL_H */