| Message ID | 20201209225214.127548-1-markus.theil@tu-ilmenau.de |
|---|---|
| State | New |
| Headers | show |
| Series | mac80211: enable QoS support for nl80211 ctrl port | expand |
Hi Markus,
url: https://github.com/0day-ci/linux/commits/Markus-Theil/mac80211-enable-QoS-support-for-nl80211-ctrl-port/20201210-065717
base: https://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git master
config: x86_64-randconfig-s021-20201210 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.3-179-ga00755aa-dirty
# https://github.com/0day-ci/linux/commit/514b314825e19f7075eb375b3effa93ff0f6a16e
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Markus-Theil/mac80211-enable-QoS-support-for-nl80211-ctrl-port/20201210-065717
git checkout 514b314825e19f7075eb375b3effa93ff0f6a16e
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
"sparse warnings: (new ones prefixed by >>)"
>> net/mac80211/tx.c:1206:26: sparse: sparse: dubious: !x & y
vim +1206 net/mac80211/tx.c
9ae54c8463691b Johannes Berg 2008-01-31 1162 static ieee80211_tx_result
3b8d81e020f77c Johannes Berg 2009-06-17 1163 ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata,
3b8d81e020f77c Johannes Berg 2009-06-17 1164 struct ieee80211_tx_data *tx,
7c10770f995820 Johannes Berg 2015-03-20 1165 struct sta_info *sta, struct sk_buff *skb)
e2ebc74d7e3d71 Johannes Berg 2007-07-27 1166 {
3b8d81e020f77c Johannes Berg 2009-06-17 1167 struct ieee80211_local *local = sdata->local;
58d4185e36913d Johannes Berg 2007-09-26 1168 struct ieee80211_hdr *hdr;
e039fa4a4195ac Johannes Berg 2008-05-15 1169 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
68f2b517bcbd81 Johannes Berg 2011-10-07 1170 int tid;
e2ebc74d7e3d71 Johannes Berg 2007-07-27 1171
e2ebc74d7e3d71 Johannes Berg 2007-07-27 1172 memset(tx, 0, sizeof(*tx));
e2ebc74d7e3d71 Johannes Berg 2007-07-27 1173 tx->skb = skb;
e2ebc74d7e3d71 Johannes Berg 2007-07-27 1174 tx->local = local;
3b8d81e020f77c Johannes Berg 2009-06-17 1175 tx->sdata = sdata;
252b86c43225d0 Johannes Berg 2011-11-16 1176 __skb_queue_head_init(&tx->skbs);
e2ebc74d7e3d71 Johannes Berg 2007-07-27 1177
cd8ffc800ce18e Johannes Berg 2009-03-23 1178 /*
cd8ffc800ce18e Johannes Berg 2009-03-23 1179 * If this flag is set to true anywhere, and we get here,
cd8ffc800ce18e Johannes Berg 2009-03-23 1180 * we are doing the needed processing, so remove the flag
cd8ffc800ce18e Johannes Berg 2009-03-23 1181 * now.
cd8ffc800ce18e Johannes Berg 2009-03-23 1182 */
cc20ff2c6b5d3e Felix Fietkau 2020-09-08 1183 info->control.flags &= ~IEEE80211_TX_INTCFL_NEED_TXPROCESSING;
cd8ffc800ce18e Johannes Berg 2009-03-23 1184
58d4185e36913d Johannes Berg 2007-09-26 1185 hdr = (struct ieee80211_hdr *) skb->data;
58d4185e36913d Johannes Berg 2007-09-26 1186
7c10770f995820 Johannes Berg 2015-03-20 1187 if (likely(sta)) {
7c10770f995820 Johannes Berg 2015-03-20 1188 if (!IS_ERR(sta))
7c10770f995820 Johannes Berg 2015-03-20 1189 tx->sta = sta;
7c10770f995820 Johannes Berg 2015-03-20 1190 } else {
3f0e0b220f8007 Felix Fietkau 2010-01-08 1191 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
f14543ee4d0681 Felix Fietkau 2009-11-10 1192 tx->sta = rcu_dereference(sdata->u.vlan.sta);
7c10770f995820 Johannes Berg 2015-03-20 1193 if (!tx->sta && sdata->wdev.use_4addr)
3f0e0b220f8007 Felix Fietkau 2010-01-08 1194 return TX_DROP;
514b314825e19f Markus Theil 2020-12-09 1195 } else if (tx->sdata->control_port_protocol == tx->skb->protocol) {
b4d57adb727ec7 Felix Fietkau 2010-01-31 1196 tx->sta = sta_info_get_bss(sdata, hdr->addr1);
3f0e0b220f8007 Felix Fietkau 2010-01-08 1197 }
9d6b106b54e02a Johannes Berg 2015-02-24 1198 if (!tx->sta && !is_multicast_ether_addr(hdr->addr1))
abe60632f311d5 Johannes Berg 2009-11-25 1199 tx->sta = sta_info_get(sdata, hdr->addr1);
7c10770f995820 Johannes Berg 2015-03-20 1200 }
58d4185e36913d Johannes Berg 2007-09-26 1201
cd8ffc800ce18e Johannes Berg 2009-03-23 1202 if (tx->sta && ieee80211_is_data_qos(hdr->frame_control) &&
49a59543eb5a5d Johannes Berg 2011-09-29 1203 !ieee80211_is_qos_nullfunc(hdr->frame_control) &&
30686bf7f5b3c3 Johannes Berg 2015-06-02 1204 ieee80211_hw_check(&local->hw, AMPDU_AGGREGATION) &&
514b314825e19f Markus Theil 2020-12-09 1205 !ieee80211_hw_check(&local->hw, TX_AMPDU_SETUP_IN_HW) &&
514b314825e19f Markus Theil 2020-12-09 @1206 !info->flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO) {
! has higher precedence than & so this is equivalent of
"if (!info->flags) {" Presumably, it should be:
!(info->flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO)) {
cd8ffc800ce18e Johannes Berg 2009-03-23 1207 struct tid_ampdu_tx *tid_tx;
cd8ffc800ce18e Johannes Berg 2009-03-23 1208
a1f2ba04cc9241 Sara Sharon 2018-02-19 1209 tid = ieee80211_get_tid(hdr);
8b30b1fe368ab0 Sujith 2008-10-24 1210
a622ab72b4dcfd Johannes Berg 2010-06-10 1211 tid_tx = rcu_dereference(tx->sta->ampdu_mlme.tid_tx[tid]);
a622ab72b4dcfd Johannes Berg 2010-06-10 1212 if (tid_tx) {
a622ab72b4dcfd Johannes Berg 2010-06-10 1213 bool queued;
a622ab72b4dcfd Johannes Berg 2010-06-10 1214
a622ab72b4dcfd Johannes Berg 2010-06-10 1215 queued = ieee80211_tx_prep_agg(tx, skb, info,
a622ab72b4dcfd Johannes Berg 2010-06-10 1216 tid_tx, tid);
cd8ffc800ce18e Johannes Berg 2009-03-23 1217
cd8ffc800ce18e Johannes Berg 2009-03-23 1218 if (unlikely(queued))
cd8ffc800ce18e Johannes Berg 2009-03-23 1219 return TX_QUEUED;
8b30b1fe368ab0 Sujith 2008-10-24 1220 }
a622ab72b4dcfd Johannes Berg 2010-06-10 1221 }
8b30b1fe368ab0 Sujith 2008-10-24 1222
badffb725c86cc Jiri Slaby 2007-08-28 1223 if (is_multicast_ether_addr(hdr->addr1)) {
5cf121c3cdb955 Johannes Berg 2008-02-25 1224 tx->flags &= ~IEEE80211_TX_UNICAST;
e039fa4a4195ac Johannes Berg 2008-05-15 1225 info->flags |= IEEE80211_TX_CTL_NO_ACK;
6fd67e937ece53 Simon Wunderlich 2011-11-18 1226 } else
5cf121c3cdb955 Johannes Berg 2008-02-25 1227 tx->flags |= IEEE80211_TX_UNICAST;
58d4185e36913d Johannes Berg 2007-09-26 1228
a26eb27ab43014 Johannes Berg 2011-10-07 1229 if (!(info->flags & IEEE80211_TX_CTL_DONTFRAG)) {
a26eb27ab43014 Johannes Berg 2011-10-07 1230 if (!(tx->flags & IEEE80211_TX_UNICAST) ||
a26eb27ab43014 Johannes Berg 2011-10-07 1231 skb->len + FCS_LEN <= local->hw.wiphy->frag_threshold ||
a26eb27ab43014 Johannes Berg 2011-10-07 1232 info->flags & IEEE80211_TX_CTL_AMPDU)
a26eb27ab43014 Johannes Berg 2011-10-07 1233 info->flags |= IEEE80211_TX_CTL_DONTFRAG;
58d4185e36913d Johannes Berg 2007-09-26 1234 }
58d4185e36913d Johannes Berg 2007-09-26 1235
e2ebc74d7e3d71 Johannes Berg 2007-07-27 1236 if (!tx->sta)
e039fa4a4195ac Johannes Berg 2008-05-15 1237 info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
f7418bc10d8402 Felix Fietkau 2015-09-24 1238 else if (test_and_clear_sta_flag(tx->sta, WLAN_STA_CLEAR_PS_FILT)) {
e039fa4a4195ac Johannes Berg 2008-05-15 1239 info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
f7418bc10d8402 Felix Fietkau 2015-09-24 1240 ieee80211_check_fast_xmit(tx->sta);
f7418bc10d8402 Felix Fietkau 2015-09-24 1241 }
58d4185e36913d Johannes Berg 2007-09-26 1242
e039fa4a4195ac Johannes Berg 2008-05-15 1243 info->flags |= IEEE80211_TX_CTL_FIRST_FRAGMENT;
e2ebc74d7e3d71 Johannes Berg 2007-07-27 1244
9ae54c8463691b Johannes Berg 2008-01-31 1245 return TX_CONTINUE;
e2ebc74d7e3d71 Johannes Berg 2007-07-27 1246 }
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
On Wed, 2020-12-09 at 23:52 +0100, Markus Theil wrote: > > Furthermore, this patch also checks and prevents frame > aggregation for control port frames in order to speed up > the initial connection setup a little. > That might make sense, but I really think it should be a separate patch. Thanks, johannes
Hi Markus,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on mac80211-next/master]
[also build test WARNING on mac80211/master v5.10-rc7 next-20201210]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Markus-Theil/mac80211-enable-QoS-support-for-nl80211-ctrl-port/20201210-065717
base: https://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git master
config: riscv-randconfig-r003-20201210 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 1968804ac726e7674d5de22bc2204b45857da344)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
# https://github.com/0day-ci/linux/commit/514b314825e19f7075eb375b3effa93ff0f6a16e
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Markus-Theil/mac80211-enable-QoS-support-for-nl80211-ctrl-port/20201210-065717
git checkout 514b314825e19f7075eb375b3effa93ff0f6a16e
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
In file included from net/mac80211/tx.c:15:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:10:
In file included from include/linux/scatterlist.h:9:
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:556:9: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
return inb(addr);
^~~~~~~~~
arch/riscv/include/asm/io.h:55:76: note: expanded from macro 'inb'
#define inb(c) ({ u8 __v; __io_pbr(); __v = readb_cpu((void*)(PCI_IOBASE + (c))); __io_par(__v); __v; })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:87:48: note: expanded from macro 'readb_cpu'
#define readb_cpu(c) ({ u8 __r = __raw_readb(c); __r; })
^
In file included from net/mac80211/tx.c:15:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:10:
In file included from include/linux/scatterlist.h:9:
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:564:9: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
return inw(addr);
^~~~~~~~~
arch/riscv/include/asm/io.h:56:76: note: expanded from macro 'inw'
#define inw(c) ({ u16 __v; __io_pbr(); __v = readw_cpu((void*)(PCI_IOBASE + (c))); __io_par(__v); __v; })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:88:76: note: expanded from macro 'readw_cpu'
#define readw_cpu(c) ({ u16 __r = le16_to_cpu((__force __le16)__raw_readw(c)); __r; })
^
include/uapi/linux/byteorder/little_endian.h:36:51: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
^
In file included from net/mac80211/tx.c:15:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:10:
In file included from include/linux/scatterlist.h:9:
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:572:9: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
return inl(addr);
^~~~~~~~~
arch/riscv/include/asm/io.h:57:76: note: expanded from macro 'inl'
#define inl(c) ({ u32 __v; __io_pbr(); __v = readl_cpu((void*)(PCI_IOBASE + (c))); __io_par(__v); __v; })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:89:76: note: expanded from macro 'readl_cpu'
#define readl_cpu(c) ({ u32 __r = le32_to_cpu((__force __le32)__raw_readl(c)); __r; })
^
include/uapi/linux/byteorder/little_endian.h:34:51: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from net/mac80211/tx.c:15:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:10:
In file included from include/linux/scatterlist.h:9:
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:580:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
outb(value, addr);
^~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:59:68: note: expanded from macro 'outb'
#define outb(v,c) ({ __io_pbw(); writeb_cpu((v),(void*)(PCI_IOBASE + (c))); __io_paw(); })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:91:52: note: expanded from macro 'writeb_cpu'
#define writeb_cpu(v, c) ((void)__raw_writeb((v), (c)))
^
In file included from net/mac80211/tx.c:15:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:10:
In file included from include/linux/scatterlist.h:9:
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:588:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
outw(value, addr);
^~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:60:68: note: expanded from macro 'outw'
#define outw(v,c) ({ __io_pbw(); writew_cpu((v),(void*)(PCI_IOBASE + (c))); __io_paw(); })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:92:76: note: expanded from macro 'writew_cpu'
#define writew_cpu(v, c) ((void)__raw_writew((__force u16)cpu_to_le16(v), (c)))
^
In file included from net/mac80211/tx.c:15:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:10:
In file included from include/linux/scatterlist.h:9:
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:596:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
outl(value, addr);
^~~~~~~~~~~~~~~~~
arch/riscv/include/asm/io.h:61:68: note: expanded from macro 'outl'
#define outl(v,c) ({ __io_pbw(); writel_cpu((v),(void*)(PCI_IOBASE + (c))); __io_paw(); })
~~~~~~~~~~ ^
arch/riscv/include/asm/mmio.h:93:76: note: expanded from macro 'writel_cpu'
#define writel_cpu(v, c) ((void)__raw_writel((__force u32)cpu_to_le32(v), (c)))
^
In file included from net/mac80211/tx.c:15:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:10:
In file included from include/linux/scatterlist.h:9:
In file included from arch/riscv/include/asm/io.h:149:
include/asm-generic/io.h:1005:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port;
~~~~~~~~~~ ^
>> net/mac80211/tx.c:1206:6: warning: logical not is only applied to the left hand side of this bitwise operator [-Wlogical-not-parentheses]
!info->flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO) {
^ ~
net/mac80211/tx.c:1206:6: note: add parentheses after the '!' to evaluate the bitwise operator first
!info->flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO) {
^
( )
net/mac80211/tx.c:1206:6: note: add parentheses around left hand side expression to silence this warning
!info->flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO) {
^
( )
8 warnings generated.
/tmp/tx-d90b1d.s: Assembler messages:
/tmp/tx-d90b1d.s:1816: Error: unrecognized opcode `zext.b a1,s11'
/tmp/tx-d90b1d.s:1847: Error: unrecognized opcode `zext.b a3,a3'
/tmp/tx-d90b1d.s:2975: Error: unrecognized opcode `zext.b a1,s5'
/tmp/tx-d90b1d.s:3936: Error: unrecognized opcode `zext.b a2,a0'
/tmp/tx-d90b1d.s:4278: Error: unrecognized opcode `zext.b a0,a0'
/tmp/tx-d90b1d.s:4557: Error: unrecognized opcode `zext.b a1,a1'
/tmp/tx-d90b1d.s:5316: Error: unrecognized opcode `zext.b a0,a0'
/tmp/tx-d90b1d.s:9203: Error: unrecognized opcode `zext.b a0,s1'
/tmp/tx-d90b1d.s:9251: Error: unrecognized opcode `zext.b a0,s1'
/tmp/tx-d90b1d.s:9912: Error: unrecognized opcode `zext.b a1,a0'
/tmp/tx-d90b1d.s:9985: Error: unrecognized opcode `zext.b a1,a0'
clang-12: error: assembler command failed with exit code 1 (use -v to see invocation)
vim +1206 net/mac80211/tx.c
1156
1157 /*
1158 * initialises @tx
1159 * pass %NULL for the station if unknown, a valid pointer if known
1160 * or an ERR_PTR() if the station is known not to exist
1161 */
1162 static ieee80211_tx_result
1163 ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata,
1164 struct ieee80211_tx_data *tx,
1165 struct sta_info *sta, struct sk_buff *skb)
1166 {
1167 struct ieee80211_local *local = sdata->local;
1168 struct ieee80211_hdr *hdr;
1169 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1170 int tid;
1171
1172 memset(tx, 0, sizeof(*tx));
1173 tx->skb = skb;
1174 tx->local = local;
1175 tx->sdata = sdata;
1176 __skb_queue_head_init(&tx->skbs);
1177
1178 /*
1179 * If this flag is set to true anywhere, and we get here,
1180 * we are doing the needed processing, so remove the flag
1181 * now.
1182 */
1183 info->control.flags &= ~IEEE80211_TX_INTCFL_NEED_TXPROCESSING;
1184
1185 hdr = (struct ieee80211_hdr *) skb->data;
1186
1187 if (likely(sta)) {
1188 if (!IS_ERR(sta))
1189 tx->sta = sta;
1190 } else {
1191 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
1192 tx->sta = rcu_dereference(sdata->u.vlan.sta);
1193 if (!tx->sta && sdata->wdev.use_4addr)
1194 return TX_DROP;
1195 } else if (tx->sdata->control_port_protocol == tx->skb->protocol) {
1196 tx->sta = sta_info_get_bss(sdata, hdr->addr1);
1197 }
1198 if (!tx->sta && !is_multicast_ether_addr(hdr->addr1))
1199 tx->sta = sta_info_get(sdata, hdr->addr1);
1200 }
1201
1202 if (tx->sta && ieee80211_is_data_qos(hdr->frame_control) &&
1203 !ieee80211_is_qos_nullfunc(hdr->frame_control) &&
1204 ieee80211_hw_check(&local->hw, AMPDU_AGGREGATION) &&
1205 !ieee80211_hw_check(&local->hw, TX_AMPDU_SETUP_IN_HW) &&
> 1206 !info->flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO) {
1207 struct tid_ampdu_tx *tid_tx;
1208
1209 tid = ieee80211_get_tid(hdr);
1210
1211 tid_tx = rcu_dereference(tx->sta->ampdu_mlme.tid_tx[tid]);
1212 if (tid_tx) {
1213 bool queued;
1214
1215 queued = ieee80211_tx_prep_agg(tx, skb, info,
1216 tid_tx, tid);
1217
1218 if (unlikely(queued))
1219 return TX_QUEUED;
1220 }
1221 }
1222
1223 if (is_multicast_ether_addr(hdr->addr1)) {
1224 tx->flags &= ~IEEE80211_TX_UNICAST;
1225 info->flags |= IEEE80211_TX_CTL_NO_ACK;
1226 } else
1227 tx->flags |= IEEE80211_TX_UNICAST;
1228
1229 if (!(info->flags & IEEE80211_TX_CTL_DONTFRAG)) {
1230 if (!(tx->flags & IEEE80211_TX_UNICAST) ||
1231 skb->len + FCS_LEN <= local->hw.wiphy->frag_threshold ||
1232 info->flags & IEEE80211_TX_CTL_AMPDU)
1233 info->flags |= IEEE80211_TX_CTL_DONTFRAG;
1234 }
1235
1236 if (!tx->sta)
1237 info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
1238 else if (test_and_clear_sta_flag(tx->sta, WLAN_STA_CLEAR_PS_FILT)) {
1239 info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
1240 ieee80211_check_fast_xmit(tx->sta);
1241 }
1242
1243 info->flags |= IEEE80211_TX_CTL_FIRST_FRAGMENT;
1244
1245 return TX_CONTINUE;
1246 }
1247
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
On 10/12/2020 12:04, Dan Carpenter wrote: > Hi Markus, > > url: https://github.com/0day-ci/linux/commits/Markus-Theil/mac80211-enable-QoS-support-for-nl80211-ctrl-port/20201210-065717 > base: https://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git master > config: x86_64-randconfig-s021-20201210 (attached as .config) > compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 > reproduce: > # apt-get install sparse > # sparse version: v0.6.3-179-ga00755aa-dirty > # https://github.com/0day-ci/linux/commit/514b314825e19f7075eb375b3effa93ff0f6a16e > git remote add linux-review https://github.com/0day-ci/linux > git fetch --no-tags linux-review Markus-Theil/mac80211-enable-QoS-support-for-nl80211-ctrl-port/20201210-065717 > git checkout 514b314825e19f7075eb375b3effa93ff0f6a16e > # save the attached .config to linux build tree > make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64 > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@intel.com> > > "sparse warnings: (new ones prefixed by >>)" >>> net/mac80211/tx.c:1206:26: sparse: sparse: dubious: !x & y > vim +1206 net/mac80211/tx.c > > 9ae54c8463691b Johannes Berg 2008-01-31 1162 static ieee80211_tx_result > 3b8d81e020f77c Johannes Berg 2009-06-17 1163 ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata, > 3b8d81e020f77c Johannes Berg 2009-06-17 1164 struct ieee80211_tx_data *tx, > 7c10770f995820 Johannes Berg 2015-03-20 1165 struct sta_info *sta, struct sk_buff *skb) > e2ebc74d7e3d71 Johannes Berg 2007-07-27 1166 { > 3b8d81e020f77c Johannes Berg 2009-06-17 1167 struct ieee80211_local *local = sdata->local; > 58d4185e36913d Johannes Berg 2007-09-26 1168 struct ieee80211_hdr *hdr; > e039fa4a4195ac Johannes Berg 2008-05-15 1169 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); > 68f2b517bcbd81 Johannes Berg 2011-10-07 1170 int tid; > e2ebc74d7e3d71 Johannes Berg 2007-07-27 1171 > e2ebc74d7e3d71 Johannes Berg 2007-07-27 1172 memset(tx, 0, sizeof(*tx)); > e2ebc74d7e3d71 Johannes Berg 2007-07-27 1173 tx->skb = skb; > e2ebc74d7e3d71 Johannes Berg 2007-07-27 1174 tx->local = local; > 3b8d81e020f77c Johannes Berg 2009-06-17 1175 tx->sdata = sdata; > 252b86c43225d0 Johannes Berg 2011-11-16 1176 __skb_queue_head_init(&tx->skbs); > e2ebc74d7e3d71 Johannes Berg 2007-07-27 1177 > cd8ffc800ce18e Johannes Berg 2009-03-23 1178 /* > cd8ffc800ce18e Johannes Berg 2009-03-23 1179 * If this flag is set to true anywhere, and we get here, > cd8ffc800ce18e Johannes Berg 2009-03-23 1180 * we are doing the needed processing, so remove the flag > cd8ffc800ce18e Johannes Berg 2009-03-23 1181 * now. > cd8ffc800ce18e Johannes Berg 2009-03-23 1182 */ > cc20ff2c6b5d3e Felix Fietkau 2020-09-08 1183 info->control.flags &= ~IEEE80211_TX_INTCFL_NEED_TXPROCESSING; > cd8ffc800ce18e Johannes Berg 2009-03-23 1184 > 58d4185e36913d Johannes Berg 2007-09-26 1185 hdr = (struct ieee80211_hdr *) skb->data; > 58d4185e36913d Johannes Berg 2007-09-26 1186 > 7c10770f995820 Johannes Berg 2015-03-20 1187 if (likely(sta)) { > 7c10770f995820 Johannes Berg 2015-03-20 1188 if (!IS_ERR(sta)) > 7c10770f995820 Johannes Berg 2015-03-20 1189 tx->sta = sta; > 7c10770f995820 Johannes Berg 2015-03-20 1190 } else { > 3f0e0b220f8007 Felix Fietkau 2010-01-08 1191 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) { > f14543ee4d0681 Felix Fietkau 2009-11-10 1192 tx->sta = rcu_dereference(sdata->u.vlan.sta); > 7c10770f995820 Johannes Berg 2015-03-20 1193 if (!tx->sta && sdata->wdev.use_4addr) > 3f0e0b220f8007 Felix Fietkau 2010-01-08 1194 return TX_DROP; > 514b314825e19f Markus Theil 2020-12-09 1195 } else if (tx->sdata->control_port_protocol == tx->skb->protocol) { > b4d57adb727ec7 Felix Fietkau 2010-01-31 1196 tx->sta = sta_info_get_bss(sdata, hdr->addr1); > 3f0e0b220f8007 Felix Fietkau 2010-01-08 1197 } > 9d6b106b54e02a Johannes Berg 2015-02-24 1198 if (!tx->sta && !is_multicast_ether_addr(hdr->addr1)) > abe60632f311d5 Johannes Berg 2009-11-25 1199 tx->sta = sta_info_get(sdata, hdr->addr1); > 7c10770f995820 Johannes Berg 2015-03-20 1200 } > 58d4185e36913d Johannes Berg 2007-09-26 1201 > cd8ffc800ce18e Johannes Berg 2009-03-23 1202 if (tx->sta && ieee80211_is_data_qos(hdr->frame_control) && > 49a59543eb5a5d Johannes Berg 2011-09-29 1203 !ieee80211_is_qos_nullfunc(hdr->frame_control) && > 30686bf7f5b3c3 Johannes Berg 2015-06-02 1204 ieee80211_hw_check(&local->hw, AMPDU_AGGREGATION) && > 514b314825e19f Markus Theil 2020-12-09 1205 !ieee80211_hw_check(&local->hw, TX_AMPDU_SETUP_IN_HW) && > 514b314825e19f Markus Theil 2020-12-09 @1206 !info->flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO) { > > ! has higher precedence than & so this is equivalent of > "if (!info->flags) {" Presumably, it should be: > > !(info->flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO)) { After fixing my syntax mistake, I ran into connectivity issues with my older test NIC (Intel(R) Centrino(R) Ultimate-N 6300 AGN, REV=0x74) and therefore removed the aggregation bypass for control port frames. My current working assumption: sending aggregated and non-aggregated data traffic on the same TID is buggy in firmware. Please correct my assumption, if for example the 802.11 standard already speaks a word against doing this. I already sent an updated v2. Markus > cd8ffc800ce18e Johannes Berg 2009-03-23 1207 struct tid_ampdu_tx *tid_tx; > cd8ffc800ce18e Johannes Berg 2009-03-23 1208 > a1f2ba04cc9241 Sara Sharon 2018-02-19 1209 tid = ieee80211_get_tid(hdr); > 8b30b1fe368ab0 Sujith 2008-10-24 1210 > a622ab72b4dcfd Johannes Berg 2010-06-10 1211 tid_tx = rcu_dereference(tx->sta->ampdu_mlme.tid_tx[tid]); > a622ab72b4dcfd Johannes Berg 2010-06-10 1212 if (tid_tx) { > a622ab72b4dcfd Johannes Berg 2010-06-10 1213 bool queued; > a622ab72b4dcfd Johannes Berg 2010-06-10 1214 > a622ab72b4dcfd Johannes Berg 2010-06-10 1215 queued = ieee80211_tx_prep_agg(tx, skb, info, > a622ab72b4dcfd Johannes Berg 2010-06-10 1216 tid_tx, tid); > cd8ffc800ce18e Johannes Berg 2009-03-23 1217 > cd8ffc800ce18e Johannes Berg 2009-03-23 1218 if (unlikely(queued)) > cd8ffc800ce18e Johannes Berg 2009-03-23 1219 return TX_QUEUED; > 8b30b1fe368ab0 Sujith 2008-10-24 1220 } > a622ab72b4dcfd Johannes Berg 2010-06-10 1221 } > 8b30b1fe368ab0 Sujith 2008-10-24 1222 > badffb725c86cc Jiri Slaby 2007-08-28 1223 if (is_multicast_ether_addr(hdr->addr1)) { > 5cf121c3cdb955 Johannes Berg 2008-02-25 1224 tx->flags &= ~IEEE80211_TX_UNICAST; > e039fa4a4195ac Johannes Berg 2008-05-15 1225 info->flags |= IEEE80211_TX_CTL_NO_ACK; > 6fd67e937ece53 Simon Wunderlich 2011-11-18 1226 } else > 5cf121c3cdb955 Johannes Berg 2008-02-25 1227 tx->flags |= IEEE80211_TX_UNICAST; > 58d4185e36913d Johannes Berg 2007-09-26 1228 > a26eb27ab43014 Johannes Berg 2011-10-07 1229 if (!(info->flags & IEEE80211_TX_CTL_DONTFRAG)) { > a26eb27ab43014 Johannes Berg 2011-10-07 1230 if (!(tx->flags & IEEE80211_TX_UNICAST) || > a26eb27ab43014 Johannes Berg 2011-10-07 1231 skb->len + FCS_LEN <= local->hw.wiphy->frag_threshold || > a26eb27ab43014 Johannes Berg 2011-10-07 1232 info->flags & IEEE80211_TX_CTL_AMPDU) > a26eb27ab43014 Johannes Berg 2011-10-07 1233 info->flags |= IEEE80211_TX_CTL_DONTFRAG; > 58d4185e36913d Johannes Berg 2007-09-26 1234 } > 58d4185e36913d Johannes Berg 2007-09-26 1235 > e2ebc74d7e3d71 Johannes Berg 2007-07-27 1236 if (!tx->sta) > e039fa4a4195ac Johannes Berg 2008-05-15 1237 info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT; > f7418bc10d8402 Felix Fietkau 2015-09-24 1238 else if (test_and_clear_sta_flag(tx->sta, WLAN_STA_CLEAR_PS_FILT)) { > e039fa4a4195ac Johannes Berg 2008-05-15 1239 info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT; > f7418bc10d8402 Felix Fietkau 2015-09-24 1240 ieee80211_check_fast_xmit(tx->sta); > f7418bc10d8402 Felix Fietkau 2015-09-24 1241 } > 58d4185e36913d Johannes Berg 2007-09-26 1242 > e039fa4a4195ac Johannes Berg 2008-05-15 1243 info->flags |= IEEE80211_TX_CTL_FIRST_FRAGMENT; > e2ebc74d7e3d71 Johannes Berg 2007-07-27 1244 > 9ae54c8463691b Johannes Berg 2008-01-31 1245 return TX_CONTINUE; > e2ebc74d7e3d71 Johannes Berg 2007-07-27 1246 } > > --- > 0-DAY CI Kernel Test Service, Intel Corporation > https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org > > _______________________________________________ > kbuild mailing list -- kbuild@lists.01.org > To unsubscribe send an email to kbuild-leave@lists.01.org
diff --git a/net/mac80211/status.c b/net/mac80211/status.c index 6feb45135..265c1d13b 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -627,16 +627,12 @@ static void ieee80211_report_ack_skb(struct ieee80211_local *local, u64 cookie = IEEE80211_SKB_CB(skb)->ack.cookie; struct ieee80211_sub_if_data *sdata; struct ieee80211_hdr *hdr = (void *)skb->data; - __be16 ethertype = 0; - - if (skb->len >= ETH_HLEN && skb->protocol == cpu_to_be16(ETH_P_802_3)) - skb_copy_bits(skb, 2 * ETH_ALEN, ðertype, ETH_TLEN); rcu_read_lock(); sdata = ieee80211_sdata_from_skb(local, skb); if (sdata) { - if (ethertype == sdata->control_port_protocol || - ethertype == cpu_to_be16(ETH_P_PREAUTH)) + if (skb->protocol == sdata->control_port_protocol || + skb->protocol == cpu_to_be16(ETH_P_PREAUTH)) cfg80211_control_port_tx_status(&sdata->wdev, cookie, skb->data, diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 01eb08527..4dae5aa7f 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1192,9 +1192,7 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata, tx->sta = rcu_dereference(sdata->u.vlan.sta); if (!tx->sta && sdata->wdev.use_4addr) return TX_DROP; - } else if (info->flags & (IEEE80211_TX_INTFL_NL80211_FRAME_TX | - IEEE80211_TX_CTL_INJECTED) || - tx->sdata->control_port_protocol == tx->skb->protocol) { + } else if (tx->sdata->control_port_protocol == tx->skb->protocol) { tx->sta = sta_info_get_bss(sdata, hdr->addr1); } if (!tx->sta && !is_multicast_ether_addr(hdr->addr1)) @@ -1204,7 +1202,8 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata, if (tx->sta && ieee80211_is_data_qos(hdr->frame_control) && !ieee80211_is_qos_nullfunc(hdr->frame_control) && ieee80211_hw_check(&local->hw, AMPDU_AGGREGATION) && - !ieee80211_hw_check(&local->hw, TX_AMPDU_SETUP_IN_HW)) { + !ieee80211_hw_check(&local->hw, TX_AMPDU_SETUP_IN_HW) && + !info->flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO) { struct tid_ampdu_tx *tid_tx; tid = ieee80211_get_tid(hdr); @@ -3944,7 +3943,8 @@ void __ieee80211_subif_start_xmit(struct sk_buff *skb, if (IS_ERR(sta)) sta = NULL; - if (local->ops->wake_tx_queue) { + if (local->ops->wake_tx_queue || + skb->protocol == sdata->control_port_protocol) { u16 queue = __ieee80211_select_queue(sdata, sta, skb); skb_set_queue_mapping(skb, queue); skb_get_hash(skb); @@ -5440,8 +5440,7 @@ int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev, if (cookie) ctrl_flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; - flags |= IEEE80211_TX_INTFL_NL80211_FRAME_TX | - IEEE80211_TX_CTL_INJECTED; + flags |= IEEE80211_TX_INTFL_NL80211_FRAME_TX; skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(struct ethhdr) + len); @@ -5458,7 +5457,7 @@ int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev, ehdr->h_proto = proto; skb->dev = dev; - skb->protocol = htons(ETH_P_802_3); + skb->protocol = proto; skb_reset_network_header(skb); skb_reset_mac_header(skb);
This patch unifies sending control port frames over nl80211 and AF_PACKET sockets a little more. Before this patch, EAPOL frames got QoS prioritization only when using AF_PACKET sockets. __ieee80211_select_queue only selects a QoS-enabled queue for control port frames, when the control port protocol is set correctly on the skb. For the AF_PACKET path this works, but the nl80211 path used ETH_P_802_3. Another check for injected frames in wme.c then prevented the QoS TID to be copied in the frame. In order to fix this, get rid of the frame injection marking for nl80211 ctrl port and set the correct ethernet protocol. Furthermore, this patch also checks and prevents frame aggregation for control port frames in order to speed up the initial connection setup a little. Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de> --- net/mac80211/status.c | 8 ++------ net/mac80211/tx.c | 15 +++++++-------- 2 files changed, 9 insertions(+), 14 deletions(-)