package/kernel/mac80211/patches/308-v4.16-0001-ath9k-move-spectral-scan-support-under-a-separate-co.patch

   1 From 9df7ddc3ed25b7d3473f117a0680b9418adb5753 Mon Sep 17 00:00:00 2001
   2 Message-Id: <9df7ddc3ed25b7d3473f117a0680b9418adb5753.1515610034.git.mschiffer@universe-factory.net>
   3 From: Matthias Schiffer <mschiffer@universe-factory.net>
   4 Date: Mon, 27 Nov 2017 18:56:22 +0100
   5 Subject: [PATCH 1/2] ath9k: move spectral scan support under a separate config
   6  symbol
   7
   8 At the moment, spectral scan support, and with it RELAY, is always enabled
   9 with ATH9K[_HTC]_DEBUGFS. Spectral scan support is currently the only user
  10 of RELAY in ath9k, and it unconditionally reserves a relay channel.
  11
  12 Having debugfs support in ath9k is often useful even on very small embedded
  13 routers, where we'd rather like to avoid the code size and RAM usage of the
  14 relay support.
  15
  16 Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
  17 Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
  18 ---
  19  drivers/net/wireless/ath/ath9k/Kconfig           | 14 ++++++++++----
  20  drivers/net/wireless/ath/ath9k/Makefile          |  4 ++--
  21  drivers/net/wireless/ath/ath9k/common-spectral.h |  4 ++--
  22  3 files changed, 14 insertions(+), 8 deletions(-)
  23
  24 --- a/drivers/net/wireless/ath/ath9k/Kconfig
  25 +++ b/drivers/net/wireless/ath/ath9k/Kconfig
  26 @@ -64,13 +64,12 @@ config ATH9K_DEBUGFS
  27         depends on ATH9K && DEBUG_FS
  28         select MAC80211_DEBUGFS
  29         select ATH9K_COMMON_DEBUG
  30 -       depends on RELAY
  31         ---help---
  32           Say Y, if you need access to ath9k's statistics for
  33           interrupts, rate control, etc.
  34
  35 -         Also required for changing debug message flags at run time.
  36 -         As well as access to the FFT/spectral data and TX99.
  37 +         Also required for changing debug message flags at run time and for
  38 +         TX99.
  39
  40  config ATH9K_STATION_STATISTICS
  41         bool "Detailed station statistics"
  42 @@ -181,7 +180,6 @@ config ATH9K_HTC_DEBUGFS
  43         bool "Atheros ath9k_htc debugging"
  44         depends on ATH9K_HTC && DEBUG_FS
  45         select ATH9K_COMMON_DEBUG
  46 -       depends on RELAY
  47         ---help---
  48           Say Y, if you need access to ath9k_htc's statistics.
  49           As well as access to the FFT/spectral data.
  50 @@ -197,3 +195,11 @@ config ATH9K_HWRNG
  51
  52           Say Y, feeds the entropy directly from the WiFi driver to the input
  53           pool.
  54 +
  55 +config ATH9K_COMMON_SPECTRAL
  56 +       bool "Atheros ath9k/ath9k_htc spectral scan support"
  57 +       depends on ATH9K_DEBUGFS || ATH9K_HTC_DEBUGFS
  58 +       depends on RELAY
  59 +       default n
  60 +       ---help---
  61 +         Say Y to enable access to the FFT/spectral data via debugfs.
  62 --- a/drivers/net/wireless/ath/ath9k/Makefile
  63 +++ b/drivers/net/wireless/ath/ath9k/Makefile
  64 @@ -61,8 +61,8 @@ ath9k_common-y:=      common.o \
  65                         common-init.o \
  66                         common-beacon.o \
  67
  68 -ath9k_common-$(CPTCFG_ATH9K_COMMON_DEBUG) += common-debug.o \
  69 -                                            common-spectral.o
  70 +ath9k_common-$(CPTCFG_ATH9K_COMMON_DEBUG) += common-debug.o
  71 +ath9k_common-$(CPTCFG_ATH9K_COMMON_SPECTRAL) += common-spectral.o
  72
  73  ath9k_htc-y += htc_hst.o \
  74                 hif_usb.o \
  75 --- a/drivers/net/wireless/ath/ath9k/common-spectral.h
  76 +++ b/drivers/net/wireless/ath/ath9k/common-spectral.h
  77 @@ -151,7 +151,7 @@ static inline u8 spectral_bitmap_weight(
  78         return bins[0] & 0x3f;
  79  }
  80
  81 -#ifdef CPTCFG_ATH9K_COMMON_DEBUG
  82 +#ifdef CPTCFG_ATH9K_COMMON_SPECTRAL
  83  void ath9k_cmn_spectral_init_debug(struct ath_spec_scan_priv *spec_priv, struct dentry *debugfs_phy);
  84  void ath9k_cmn_spectral_deinit_debug(struct ath_spec_scan_priv *spec_priv);
  85
  86 @@ -183,6 +183,6 @@ static inline int ath_cmn_process_fft(st
  87  {
  88         return 0;
  89  }
  90 -#endif /* CPTCFG_ATH9K_COMMON_DEBUG */
  91 +#endif /* CPTCFG_ATH9K_COMMON_SPECTRAL */
  92
  93  #endif /* SPECTRAL_H */
  94 --- a/local-symbols
  95 +++ b/local-symbols
  96 @@ -116,6 +116,7 @@ ATH9K_PCOEM=
  97  ATH9K_HTC=
  98  ATH9K_HTC_DEBUGFS=
  99  ATH9K_HWRNG=
 100 +ATH9K_COMMON_SPECTRAL=
 101  CARL9170=
 102  CARL9170_LEDS=
 103  CARL9170_DEBUGFS=