From: Johannes Berg <johannes.berg@xxxxxxxxx> Parsing and building C structures from a regdb is no longer needed since the "firmware" file (regulatory.db) can be linked into the kernel image to achieve the same effect. Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> --- Documentation/networking/regulatory.txt | 22 +---- net/wireless/Kconfig | 22 ----- net/wireless/Makefile | 6 -- net/wireless/db.txt | 17 ---- net/wireless/genregdb.awk | 158 -------------------------------- net/wireless/reg.c | 38 -------- 6 files changed, 2 insertions(+), 261 deletions(-) delete mode 100644 net/wireless/db.txt delete mode 100644 net/wireless/genregdb.awk diff --git a/Documentation/networking/regulatory.txt b/Documentation/networking/regulatory.txt index 753f912185eb..4e047ed6c71f 100644 --- a/Documentation/networking/regulatory.txt +++ b/Documentation/networking/regulatory.txt @@ -200,23 +200,5 @@ Then in some part of your code after your wiphy has been registered: Statically compiled regulatory database --------------------------------------- -In most situations the userland solution using CRDA as described -above is the preferred solution. However in some cases a set of -rules built into the kernel itself may be desirable. To account -for this situation, a configuration option has been provided -(i.e. CONFIG_CFG80211_INTERNAL_REGDB). With this option enabled, -the wireless database information contained in net/wireless/db.txt is -used to generate a data structure encoded in net/wireless/regdb.c. -That option also enables code in net/wireless/reg.c which queries -the data in regdb.c as an alternative to using CRDA. - -The file net/wireless/db.txt should be kept up-to-date with the db.txt -file available in the git repository here: - - git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-regdb.git - -Again, most users in most situations should be using the CRDA package -provided with their distribution, and in most other situations users -should be building and using CRDA on their own rather than using -this option. If you are not absolutely sure that you should be using -CONFIG_CFG80211_INTERNAL_REGDB then _DO_NOT_USE_IT_. +When a database should be fixed into the kernel, it can be provided as a +firmware file at build time that is then linked into the kernel. diff --git a/net/wireless/Kconfig b/net/wireless/Kconfig index 063b29f15a70..d42b54dae087 100644 --- a/net/wireless/Kconfig +++ b/net/wireless/Kconfig @@ -152,28 +152,6 @@ config CFG80211_DEBUGFS If unsure, say N. -config CFG80211_INTERNAL_REGDB - bool "use statically compiled regulatory rules database" if EXPERT - default n - depends on CFG80211 - ---help--- - This option generates an internal data structure representing - the wireless regulatory rules described in net/wireless/db.txt - and includes code to query that database. This is an alternative - to using CRDA for defining regulatory rules for the kernel. - - Using this option requires some parsing of the db.txt at build time, - the parser will be upkept with the latest wireless-regdb updates but - older wireless-regdb formats will be ignored. The parser may later - be replaced to avoid issues with conflicts on versions of - wireless-regdb. - - For details see: - - http://wireless.kernel.org/en/developers/Regulatory - - Most distributions have a CRDA package. So if unsure, say N. - config CFG80211_CRDA_SUPPORT bool "support CRDA" if EXPERT default y diff --git a/net/wireless/Makefile b/net/wireless/Makefile index 4c9e39f04ef8..f15a61d62913 100644 --- a/net/wireless/Makefile +++ b/net/wireless/Makefile @@ -13,13 +13,7 @@ cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o scan.o nl80211.o cfg80211-y += mlme.o ibss.o sme.o chan.o ethtool.o mesh.o ap.o trace.o ocb.o cfg80211-$(CONFIG_CFG80211_DEBUGFS) += debugfs.o cfg80211-$(CONFIG_CFG80211_WEXT) += wext-compat.o wext-sme.o -cfg80211-$(CONFIG_CFG80211_INTERNAL_REGDB) += regdb.o CFLAGS_trace.o := -I$(src) ccflags-y += -D__CHECK_ENDIAN__ - -$(obj)/regdb.c: $(src)/db.txt $(src)/genregdb.awk - @$(AWK) -f $(srctree)/$(src)/genregdb.awk < $< > $@ - -clean-files := regdb.c diff --git a/net/wireless/db.txt b/net/wireless/db.txt deleted file mode 100644 index a2fc3a09ccdc..000000000000 --- a/net/wireless/db.txt +++ /dev/null @@ -1,17 +0,0 @@ -# -# This file is a placeholder to prevent accidental build breakage if someone -# enables CONFIG_CFG80211_INTERNAL_REGDB. Almost no one actually needs to -# enable that build option. -# -# You should be using CRDA instead. It is even better if you use the CRDA -# package provided by your distribution, since they will probably keep it -# up-to-date on your behalf. -# -# If you _really_ intend to use CONFIG_CFG80211_INTERNAL_REGDB then you will -# need to replace this file with one containing appropriately formatted -# regulatory rules that cover the regulatory domains you will be using. Your -# best option is to extract the db.txt file from the wireless-regdb git -# repository: -# -# git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-regdb.git -# diff --git a/net/wireless/genregdb.awk b/net/wireless/genregdb.awk deleted file mode 100644 index baf2426b555a..000000000000 --- a/net/wireless/genregdb.awk +++ /dev/null @@ -1,158 +0,0 @@ -#!/usr/bin/awk -f -# -# genregdb.awk -- generate regdb.c from db.txt -# -# Actually, it reads from stdin (presumed to be db.txt) and writes -# to stdout (presumed to be regdb.c), but close enough... -# -# Copyright 2009 John W. Linville <linville@xxxxxxxxxxxxx> -# -# Permission to use, copy, modify, and/or distribute this software for any -# purpose with or without fee is hereby granted, provided that the above -# copyright notice and this permission notice appear in all copies. -# -# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES -# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF -# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR -# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN -# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF -# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - -BEGIN { - active = 0 - rules = 0; - print "/*" - print " * DO NOT EDIT -- file generated from data in db.txt" - print " */" - print "" - print "#include <linux/nl80211.h>" - print "#include <net/cfg80211.h>" - print "#include \"regdb.h\"" - print "" - regdb = "const struct ieee80211_regdomain *reg_regdb[] = {\n" -} - -function parse_country_head() { - country=$2 - sub(/:/, "", country) - printf "static const struct ieee80211_regdomain regdom_%s = {\n", country - printf "\t.alpha2 = \"%s\",\n", country - if ($NF ~ /DFS-ETSI/) - printf "\t.dfs_region = NL80211_DFS_ETSI,\n" - else if ($NF ~ /DFS-FCC/) - printf "\t.dfs_region = NL80211_DFS_FCC,\n" - else if ($NF ~ /DFS-JP/) - printf "\t.dfs_region = NL80211_DFS_JP,\n" - printf "\t.reg_rules = {\n" - active = 1 - regdb = regdb "\t®dom_" country ",\n" -} - -function parse_reg_rule() -{ - flag_starts_at = 7 - - start = $1 - sub(/\(/, "", start) - end = $3 - bw = $5 - sub(/\),/, "", bw) - gain = 0 - power = $6 - # power might be in mW... - units = $7 - dfs_cac = 0 - - sub(/\(/, "", power) - sub(/\),/, "", power) - sub(/\),/, "", units) - sub(/\)/, "", units) - - if (units == "mW") { - flag_starts_at = 8 - power = 10 * log(power)/log(10) - if ($8 ~ /[[:digit:]]/) { - flag_starts_at = 9 - dfs_cac = $8 - } - } else { - if ($7 ~ /[[:digit:]]/) { - flag_starts_at = 8 - dfs_cac = $7 - } - } - sub(/\(/, "", dfs_cac) - sub(/\),/, "", dfs_cac) - flagstr = "" - for (i=flag_starts_at; i<=NF; i++) - flagstr = flagstr $i - split(flagstr, flagarray, ",") - flags = "" - for (arg in flagarray) { - if (flagarray[arg] == "NO-OFDM") { - flags = flags "\n\t\t\tNL80211_RRF_NO_OFDM | " - } else if (flagarray[arg] == "NO-CCK") { - flags = flags "\n\t\t\tNL80211_RRF_NO_CCK | " - } else if (flagarray[arg] == "NO-INDOOR") { - flags = flags "\n\t\t\tNL80211_RRF_NO_INDOOR | " - } else if (flagarray[arg] == "NO-OUTDOOR") { - flags = flags "\n\t\t\tNL80211_RRF_NO_OUTDOOR | " - } else if (flagarray[arg] == "DFS") { - flags = flags "\n\t\t\tNL80211_RRF_DFS | " - } else if (flagarray[arg] == "PTP-ONLY") { - flags = flags "\n\t\t\tNL80211_RRF_PTP_ONLY | " - } else if (flagarray[arg] == "PTMP-ONLY") { - flags = flags "\n\t\t\tNL80211_RRF_PTMP_ONLY | " - } else if (flagarray[arg] == "PASSIVE-SCAN") { - flags = flags "\n\t\t\tNL80211_RRF_NO_IR | " - } else if (flagarray[arg] == "NO-IBSS") { - flags = flags "\n\t\t\tNL80211_RRF_NO_IR | " - } else if (flagarray[arg] == "NO-IR") { - flags = flags "\n\t\t\tNL80211_RRF_NO_IR | " - } else if (flagarray[arg] == "AUTO-BW") { - flags = flags "\n\t\t\tNL80211_RRF_AUTO_BW | " - } - - } - flags = flags "0" - printf "\t\tREG_RULE_EXT(%d, %d, %d, %d, %.0f, %d, %s),\n", start, end, bw, gain, power, dfs_cac, flags - rules++ -} - -function print_tail_country() -{ - active = 0 - printf "\t},\n" - printf "\t.n_reg_rules = %d\n", rules - printf "};\n\n" - rules = 0; -} - -/^[ \t]*#/ { - # Ignore -} - -!active && /^[ \t]*$/ { - # Ignore -} - -!active && /country/ { - parse_country_head() -} - -active && /^[ \t]*\(/ { - parse_reg_rule() -} - -active && /^[ \t]*$/ { - print_tail_country() -} - -END { - if (active) - print_tail_country() - print regdb "};" - print "" - print "int reg_regdb_size = ARRAY_SIZE(reg_regdb);" -} diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 82b394bddfc3..df02563b11d8 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -501,38 +501,6 @@ static int reg_schedule_apply(const struct ieee80211_regdomain *regdom) return 0; } -#ifdef CONFIG_CFG80211_INTERNAL_REGDB -static int reg_query_builtin(const char *alpha2) -{ - const struct ieee80211_regdomain *regdom = NULL; - unsigned int i; - - for (i = 0; i < reg_regdb_size; i++) { - if (alpha2_equal(alpha2, reg_regdb[i]->alpha2)) { - regdom = reg_copy_regd(reg_regdb[i]); - break; - } - } - if (!regdom) - return -ENODATA; - - return reg_schedule_apply(regdom); -} - -/* Feel free to add any other sanity checks here */ -static void reg_regdb_size_check(void) -{ - /* We should ideally BUILD_BUG_ON() but then random builds would fail */ - WARN_ONCE(!reg_regdb_size, "db.txt is empty, you should update it..."); -} -#else -static inline void reg_regdb_size_check(void) {} -static inline int reg_query_builtin(const char *alpha2) -{ - return -ENODATA; -} -#endif /* CONFIG_CFG80211_INTERNAL_REGDB */ - #ifdef CONFIG_CFG80211_CRDA_SUPPORT /* Max number of consecutive attempts to communicate with CRDA */ #define REG_MAX_CRDA_TIMEOUTS 10 @@ -817,10 +785,6 @@ static int query_regdb_file(const char *alpha2) static bool reg_query_database(struct regulatory_request *request) { - /* query internal regulatory database (if it exists) */ - if (reg_query_builtin(request->alpha2) == 0) - return true; - if (query_regdb_file(request->alpha2) == 0) return true; @@ -3424,8 +3388,6 @@ int __init regulatory_init(void) spin_lock_init(®_pending_beacons_lock); spin_lock_init(®_indoor_lock); - reg_regdb_size_check(); - rcu_assign_pointer(cfg80211_regdomain, cfg80211_world_regdom); user_alpha2[0] = '9'; -- 2.5.1 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
