recipes-wifi/iw/patches-mlo/0002-iw-add-puncturing-support.patch

From b29da202bdcbdc75cd75db37175261fb22d1e13b Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 17 May 2024 12:12:10 +0200
Subject: [PATCH 02/10] iw: add puncturing support

Parse and pass the puncturing bitmap to the kernel in any
chandef (except S1G), the kernel will check validity.

Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 iw.h   |  7 ++++---
 util.c | 15 ++++++++++++++-
 2 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/iw.h b/iw.h
index 82eee7c..f416d6d 100644
--- a/iw.h
+++ b/iw.h
@@ -106,6 +106,7 @@ struct chandef {
 	unsigned int center_freq1;
 	unsigned int center_freq1_offset;
 	unsigned int center_freq2;
+	unsigned int punctured;
 };
 
 #define ARRAY_SIZE(ar) (sizeof(ar)/sizeof(ar[0]))
@@ -210,8 +211,8 @@ unsigned char *parse_hex(char *hex, size_t *outlen);
 
 int parse_keys(struct nl_msg *msg, char **argv[], int *argc);
 
-#define _PARSE_FREQ_ARGS_OPT1 "<freq> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz|160MHz|320MHz]"
-#define _PARSE_FREQ_ARGS_OPT2 "<control freq> [5|10|20|40|80|80+80|160|320] [<center1_freq> [<center2_freq>]]"
+#define _PARSE_FREQ_ARGS_OPT1 "<freq> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz|160MHz|320MHz] [punct <bitmap>]"
+#define _PARSE_FREQ_ARGS_OPT2 "<control freq> [5|10|20|40|80|80+80|160|320] [<center1_freq> [<center2_freq>]] [punct <bitmap>]"
 #define PARSE_FREQ_ARGS(pfx, sfx) \
 	pfx _PARSE_FREQ_ARGS_OPT1 sfx "\n" \
 	pfx _PARSE_FREQ_ARGS_OPT2 sfx
@@ -221,7 +222,7 @@ int parse_keys(struct nl_msg *msg, char **argv[], int *argc);
 	pfx _PARSE_FREQ_KHZ_ARGS_OPT1 sfx "\n" \
 	pfx _PARSE_FREQ_KHZ_ARGS_OPT2 sfx
 #define PARSE_CHAN_ARGS(pfx) \
-	pfx "<channel> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz|160MHz|320MHz]"
+	pfx "<channel> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz|160MHz|320MHz] [punct <bitmap>]"
 int parse_freqchan(struct chandef *chandef, bool chan, int argc, char **argv,
 		    int *parsed, bool freq_in_khz);
 enum nl80211_chan_width str_to_bw(const char *str);
diff --git a/util.c b/util.c
index f358317..e43d590 100644
--- a/util.c
+++ b/util.c
@@ -735,13 +735,23 @@ int parse_freqchan(struct chandef *chandef, bool chan, int argc, char **argv,
 		goto out;
 	}
 
-	/* This was a only a channel definition, nothing further may follow. */
+	/* This was a only a channel definition, only puncturing may follow */
 	if (chan)
 		goto out;
 
 	res = parse_freqs(chandef, argc - 1, argv + 1, &_parsed, freq_in_khz);
 
  out:
+	if (!freq_in_khz && argc > _parsed && strcmp(argv[_parsed], "punct") == 0) {
+		_parsed++;
+		if (argc <= _parsed)
+			return 1;
+		chandef->punctured = strtoul(argv[_parsed], &end, 10);
+		if (*end)
+			return 1;
+		_parsed++;
+	}
+
 	/* Error out if parsed is NULL. */
 	if (!parsed && _parsed != argc)
 		return 1;
@@ -800,6 +810,9 @@ int put_chandef(struct nl_msg *msg, struct chandef *chandef)
 			    NL80211_ATTR_CENTER_FREQ2,
 			    chandef->center_freq2);
 
+	if (chandef->punctured)
+		NLA_PUT_U32(msg, NL80211_ATTR_PUNCT_BITMAP, chandef->punctured);
+
 	return 0;
 
  nla_put_failure:
-- 
2.18.0