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Subjectdrivers/net/ethernet/mediatek/mtk_ppe_debugfs.c:60:27: sparse: sparse: incorrect type in assignment (different base types)
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: bbef3c7a63d2a4cb0f3f839db9e767f168c5e348
commit: ba37b7caf1ed2395cc84d8f823ff933975f1f789 net: ethernet: mtk_eth_soc: add support for initializing the PPE
date: 9 months ago
config: arm-allyesconfig (https://download.01.org/0day-ci/archive/20211205/202112050707.cAZoYQWK-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ba37b7caf1ed2395cc84d8f823ff933975f1f789
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout ba37b7caf1ed2395cc84d8f823ff933975f1f789
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm SHELL=/bin/bash drivers/dma/ drivers/gpu/drm/msm/ drivers/gpu/drm/tegra/ drivers/interconnect/qcom/ drivers/net/ethernet/mediatek/ drivers/net/vmxnet3/ drivers/net/wireless/mediatek/mt76/mt7915/ drivers/remoteproc/ drivers/scsi/bnx2fc/ drivers/scsi/lpfc/ drivers/staging/ fs/proc/

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 >>)
>> drivers/net/ethernet/mediatek/mtk_ppe_debugfs.c:60:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int @@ got restricted __be32 [usertype] @@
drivers/net/ethernet/mediatek/mtk_ppe_debugfs.c:60:27: sparse: expected unsigned int
drivers/net/ethernet/mediatek/mtk_ppe_debugfs.c:60:27: sparse: got restricted __be32 [usertype]
>> drivers/net/ethernet/mediatek/mtk_ppe_debugfs.c:158:46: sparse: sparse: cast to restricted __be16

vim +60 drivers/net/ethernet/mediatek/mtk_ppe_debugfs.c

47
48 static void
49 mtk_print_addr(struct seq_file *m, u32 *addr, bool ipv6)
50 {
51 u32 n_addr[4];
52 int i;
53
54 if (!ipv6) {
55 seq_printf(m, "%pI4h", addr);
56 return;
57 }
58
59 for (i = 0; i < ARRAY_SIZE(n_addr); i++)
> 60 n_addr[i] = htonl(addr[i]);
61 seq_printf(m, "%pI6", n_addr);
62 }
63
64 static void
65 mtk_print_addr_info(struct seq_file *m, struct mtk_flow_addr_info *ai)
66 {
67 mtk_print_addr(m, ai->src, ai->ipv6);
68 if (ai->src_port)
69 seq_printf(m, ":%d", *ai->src_port);
70 seq_printf(m, "->");
71 mtk_print_addr(m, ai->dest, ai->ipv6);
72 if (ai->dest_port)
73 seq_printf(m, ":%d", *ai->dest_port);
74 }
75
76 static int
77 mtk_ppe_debugfs_foe_show(struct seq_file *m, void *private, bool bind)
78 {
79 struct mtk_ppe *ppe = m->private;
80 int i, count;
81
82 for (i = 0, count = 0; i < MTK_PPE_ENTRIES; i++) {
83 struct mtk_foe_entry *entry = &ppe->foe_table[i];
84 struct mtk_foe_mac_info *l2;
85 struct mtk_flow_addr_info ai = {};
86 unsigned char h_source[ETH_ALEN];
87 unsigned char h_dest[ETH_ALEN];
88 int type, state;
89 u32 ib2;
90
91
92 state = FIELD_GET(MTK_FOE_IB1_STATE, entry->ib1);
93 if (!state)
94 continue;
95
96 if (bind && state != MTK_FOE_STATE_BIND)
97 continue;
98
99 type = FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, entry->ib1);
100 seq_printf(m, "%05x %s %7s", i,
101 mtk_foe_entry_state_str(state),
102 mtk_foe_pkt_type_str(type));
103
104 switch (type) {
105 case MTK_PPE_PKT_TYPE_IPV4_HNAPT:
106 case MTK_PPE_PKT_TYPE_IPV4_DSLITE:
107 ai.src_port = &entry->ipv4.orig.src_port;
108 ai.dest_port = &entry->ipv4.orig.dest_port;
109 fallthrough;
110 case MTK_PPE_PKT_TYPE_IPV4_ROUTE:
111 ai.src = &entry->ipv4.orig.src_ip;
112 ai.dest = &entry->ipv4.orig.dest_ip;
113 break;
114 case MTK_PPE_PKT_TYPE_IPV6_ROUTE_5T:
115 ai.src_port = &entry->ipv6.src_port;
116 ai.dest_port = &entry->ipv6.dest_port;
117 fallthrough;
118 case MTK_PPE_PKT_TYPE_IPV6_ROUTE_3T:
119 case MTK_PPE_PKT_TYPE_IPV6_6RD:
120 ai.src = &entry->ipv6.src_ip;
121 ai.dest = &entry->ipv6.dest_ip;
122 ai.ipv6 = true;
123 break;
124 }
125
126 seq_printf(m, " orig=");
127 mtk_print_addr_info(m, &ai);
128
129 switch (type) {
130 case MTK_PPE_PKT_TYPE_IPV4_HNAPT:
131 case MTK_PPE_PKT_TYPE_IPV4_DSLITE:
132 ai.src_port = &entry->ipv4.new.src_port;
133 ai.dest_port = &entry->ipv4.new.dest_port;
134 fallthrough;
135 case MTK_PPE_PKT_TYPE_IPV4_ROUTE:
136 ai.src = &entry->ipv4.new.src_ip;
137 ai.dest = &entry->ipv4.new.dest_ip;
138 seq_printf(m, " new=");
139 mtk_print_addr_info(m, &ai);
140 break;
141 }
142
143 if (type >= MTK_PPE_PKT_TYPE_IPV4_DSLITE) {
144 l2 = &entry->ipv6.l2;
145 ib2 = entry->ipv6.ib2;
146 } else {
147 l2 = &entry->ipv4.l2;
148 ib2 = entry->ipv4.ib2;
149 }
150
151 *((__be32 *)h_source) = htonl(l2->src_mac_hi);
152 *((__be16 *)&h_source[4]) = htons(l2->src_mac_lo);
153 *((__be32 *)h_dest) = htonl(l2->dest_mac_hi);
154 *((__be16 *)&h_dest[4]) = htons(l2->dest_mac_lo);
155
156 seq_printf(m, " eth=%pM->%pM etype=%04x"
157 " vlan=%d,%d ib1=%08x ib2=%08x\n",
> 158 h_source, h_dest, ntohs(l2->etype),
159 l2->vlan1, l2->vlan2, entry->ib1, ib2);
160 }
161
162 return 0;
163 }
164

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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