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Commit c84387d2 authored by Johannes Berg's avatar Johannes Berg
Browse files

mac80211: clean up station flags debugfs 



Avoid the really strange %s%s%s expression, use an array
of flag names and check that all flags are present.

Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 3c5bcb2e

net/mac80211/debugfs_sta.c

+43 −20
Original line number Diff line number Diff line
@@ -52,31 +52,54 @@ static const struct file_operations sta_ ##name## _ops = { \ 


STA_FILE(aid, sta.aid, D);



static const char * const sta_flag_names[] = {

#define FLAG(F) [WLAN_STA_##F] = #F

	FLAG(AUTH),

	FLAG(ASSOC),

	FLAG(PS_STA),

	FLAG(AUTHORIZED),

	FLAG(SHORT_PREAMBLE),

	FLAG(WDS),

	FLAG(CLEAR_PS_FILT),

	FLAG(MFP),

	FLAG(BLOCK_BA),

	FLAG(PS_DRIVER),

	FLAG(PSPOLL),

	FLAG(TDLS_PEER),

	FLAG(TDLS_PEER_AUTH),

	FLAG(TDLS_INITIATOR),

	FLAG(TDLS_CHAN_SWITCH),

	FLAG(TDLS_OFF_CHANNEL),

	FLAG(TDLS_WIDER_BW),

	FLAG(UAPSD),

	FLAG(SP),

	FLAG(4ADDR_EVENT),

	FLAG(INSERTED),

	FLAG(RATE_CONTROL),

	FLAG(TOFFSET_KNOWN),

	FLAG(MPSP_OWNER),

	FLAG(MPSP_RECIPIENT),

	FLAG(PS_DELIVER),

#undef FLAG

};



static ssize_t sta_flags_read(struct file *file, char __user *userbuf,

			      size_t count, loff_t *ppos)

{

	char buf[121];

	char buf[16 * NUM_WLAN_STA_FLAGS], *pos = buf;

	char *end = buf + sizeof(buf) - 1;

	struct sta_info *sta = file->private_data;

	unsigned int flg;



	BUILD_BUG_ON(ARRAY_SIZE(sta_flag_names) != NUM_WLAN_STA_FLAGS);



	for (flg = 0; flg < NUM_WLAN_STA_FLAGS; flg++) {

		if (test_sta_flag(sta, flg))

			pos += scnprintf(pos, end - pos, "%s\n",

					 sta_flag_names[flg]);

	}



#define TEST(flg) \

	test_sta_flag(sta, WLAN_STA_##flg) ? #flg "\n" : ""



	int res = scnprintf(buf, sizeof(buf),

			    "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",

			    TEST(AUTH), TEST(ASSOC), TEST(PS_STA),

			    TEST(PS_DRIVER), TEST(AUTHORIZED),

			    TEST(SHORT_PREAMBLE),

			    sta->sta.wme ? "WME\n" : "",

			    TEST(WDS), TEST(CLEAR_PS_FILT),

			    TEST(MFP), TEST(BLOCK_BA), TEST(PSPOLL),

			    TEST(UAPSD), TEST(SP), TEST(TDLS_PEER),

			    TEST(TDLS_PEER_AUTH), TEST(TDLS_INITIATOR),

			    TEST(TDLS_CHAN_SWITCH), TEST(TDLS_OFF_CHANNEL),

			    TEST(4ADDR_EVENT), TEST(INSERTED),

			    TEST(RATE_CONTROL), TEST(TOFFSET_KNOWN),

			    TEST(MPSP_OWNER), TEST(MPSP_RECIPIENT));

#undef TEST

	return simple_read_from_buffer(userbuf, count, ppos, buf, res);

	return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));

}

STA_OPS(flags);

net/mac80211/sta_info.h

+4 −0
Original line number Diff line number Diff line
@@ -69,6 +69,8 @@ 
 * @WLAN_STA_MPSP_RECIPIENT: local STA is recipient of a MPSP.

 * @WLAN_STA_PS_DELIVER: station woke up, but we're still blocking TX

 *	until pending frames are delivered

 *

 * @NUM_WLAN_STA_FLAGS: number of defined flags

 */

enum ieee80211_sta_info_flags {

	WLAN_STA_AUTH,
@@ -97,6 +99,8 @@ enum ieee80211_sta_info_flags { 
	WLAN_STA_MPSP_OWNER,

	WLAN_STA_MPSP_RECIPIENT,

	WLAN_STA_PS_DELIVER,



	NUM_WLAN_STA_FLAGS,

};



#define ADDBA_RESP_INTERVAL HZ