[DEV only] Random Development thoughts

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SYSFS ENTRIES
================================================================================

Information about mounted f2f2 file systems can be found in
/sys/fs/f2fs.  Each mounted filesystem will have a directory in
/sys/fs/f2fs based on its device name (i.e., /sys/fs/f2fs/sda).
The files in each per-device directory are shown in table below.

Files in /sys/fs/f2fs/<devname>
(see also Documentation/ABI/testing/sysfs-fs-f2fs)
..............................................................................
 File                         Content

 gc_max_sleep_time            This tuning parameter controls the maximum sleep
                              time for the garbage collection thread. Time is
                              in milliseconds.

 gc_min_sleep_time            This tuning parameter controls the minimum sleep
                              time for the garbage collection thread. Time is
                              in milliseconds.

 gc_no_gc_sleep_time          This tuning parameter controls the default sleep
                              time for the garbage collection thread. Time is
                              in milliseconds.

 gc_idle                      This parameter controls the selection of victim
                              policy for garbage collection. Setting gc_idle = 0
                              (default) will disable this option. Setting
                              gc_idle = 1 will select the Cost Benefit approach
                              & setting gc_idle = 2 will select the greedy aproach.

 reclaim_segments             This parameter controls the number of prefree
                              segments to be reclaimed. If the number of prefree
			      segments is larger than the number of segments
			      in the proportion to the percentage over total
			      volume size, f2fs tries to conduct checkpoint to
			      reclaim the prefree segments to free segments.
			      By default, 5% over total # of segments.

 max_small_discards	      This parameter controls the number of discard
			      commands that consist small blocks less than 2MB.
			      The candidates to be discarded are cached until
			      checkpoint is triggered, and issued during the
			      checkpoint. By default, it is disabled with 0.

 ipu_policy                   This parameter controls the policy of in-place
                              updates in f2fs. There are five policies:
                               0: F2FS_IPU_FORCE, 1: F2FS_IPU_SSR,
                               2: F2FS_IPU_UTIL,  3: F2FS_IPU_SSR_UTIL,
                               4: F2FS_IPU_DISABLE.

 min_ipu_util                 This parameter controls the threshold to trigger
                              in-place-updates. The number indicates percentage
                              of the filesystem utilization, and used by
                              F2FS_IPU_UTIL and F2FS_IPU_SSR_UTIL policies.

 max_victim_search	      This parameter controls the number of trials to
			      find a victim segment when conducting SSR and
			      cleaning operations. The default value is 4096
			      which covers 8GB block address range.

 dir_level                    This parameter controls the directory level to
			      support large directory. If a directory has a
			      number of files, it can reduce the file lookup
			      latency by increasing this dir_level value.
			      Otherwise, it needs to decrease this value to
			      reduce the space overhead. The default value is 0.

 ram_thresh                   This parameter controls the memory footprint used
			      by free nids and cached nat entries. By default,
			      10 is set, which indicates 10 MB / 1 GB RAM.

131,132d130
< source "drivers/staging/prima/Kconfig"
<

58,59d57
< obj-$(CONFIG_PRIMA_WLAN)        += prima/
< obj-$(CONFIG_PRONTO_WLAN)       += prima/

CONFIG_WIRELESS=y
CONFIG_WIRELESS_EXT=y
CONFIG_WEXT_CORE=y
CONFIG_WEXT_PROC=y
CONFIG_WEXT_SPY=y
CONFIG_WEXT_PRIV=y
CONFIG_CFG80211=y
CONFIG_NL80211_TESTMODE=y
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
# CONFIG_CFG80211_REG_DEBUG is not set
CONFIG_CFG80211_DEFAULT_PS=y
# CONFIG_CFG80211_DEBUGFS is not set
CONFIG_CFG80211_INTERNAL_REGDB=y
# CONFIG_CFG80211_WEXT is not set
# CONFIG_WIRELESS_EXT_SYSFS is not set
# CONFIG_LIB80211 is not set
# CONFIG_CFG80211_ALLOW_RECONNECT is not set
# CONFIG_MAC80211 is not set
# CONFIG_WIMAX is not set
CONFIG_RFKILL=y
CONFIG_RFKILL_PM=y
CONFIG_RFKILL_LEDS=y
# CONFIG_RFKILL_INPUT is not set
# CONFIG_RFKILL_REGULATOR is not set
# CONFIG_RFKILL_GPIO is not set
...
# CONFIG_WIFI_CONTROL_FUNC is not set
...
CONFIG_WLAN=y
# CONFIG_USB_ZD1201 is not set
# CONFIG_USB_NET_RNDIS_WLAN is not set
# CONFIG_LIBRA_SDIOIF is not set
# CONFIG_ATH6K_LEGACY_EXT is not set
CONFIG_WCNSS_CORE=y
CONFIG_WCNSS_CORE_PRONTO=y
CONFIG_WCNSS_MEM_PRE_ALLOC=y
CONFIG_WCNSS_REGISTER_DUMP_ON_BITE=y
# CONFIG_ATH_COMMON is not set
# CONFIG_BCMDHD is not set
# CONFIG_BRCMFMAC is not set
# CONFIG_HOSTAP is not set
# CONFIG_IWM is not set
# CONFIG_LIBERTAS is not set
# CONFIG_MWIFIEX is not set
...
#
# Qualcomm Atheros Prima WLAN module
#
CONFIG_PRIMA_WLAN=m
CONFIG_PRONTO_WLAN=y
# CONFIG_PRIMA_WLAN_BTAMP is not set
CONFIG_PRIMA_WLAN_LFR=y
CONFIG_PRIMA_WLAN_OKC=y
CONFIG_PRIMA_WLAN_11AC_HIGH_TP=y
CONFIG_WLAN_FEATURE_11W=y
CONFIG_QCOM_VOWIFI_11R=y
CONFIG_CONFIG_ENABLE_LINUX_REG=y

WCNSS_cfg.dat
WCNSS_qcom_cfg.ini
WCNSS_qcom_wlan_nv.bin

drivers/staging/prima/CORE/HDD/src/wlan_hdd_cfg80211.c: In function ‘wlan_hdd_send_avoid_freq_event’:
drivers/staging/prima/CORE/HDD/src/wlan_hdd_cfg80211.c:574:18: warning: assignment makes pointer from integer without a cast
error, forbidden warning: wlan_hdd_cfg80211.c:574
make[3]: *** [drivers/staging/prima/CORE/HDD/src/wlan_hdd_cfg80211.o] Error 1

vendor_event = (struct sk_buff *)cfg80211_vendor_event_alloc(pHddCtx->wiphy,