drivers/net/dsa/sja1105/sja1105_main.c:3418 sja1105_check_device_id() warn: this array is probably non-NULL. 'match->compatible'
From: kernel test robot
Date: Mon Aug 10 2020 - 11:05:41 EST
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: fc80c51fd4b23ec007e88d4c688f2cac1b8648e7
commit: 0b0e299720bb99428892a23ecbd2b4b7f61ccf6d net: dsa: sja1105: use detected device id instead of DT one on mismatch
date: 5 days ago
config: i386-randconfig-m021-20200810 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>
New smatch warnings:
drivers/net/dsa/sja1105/sja1105_main.c:3418 sja1105_check_device_id() warn: this array is probably non-NULL. 'match->compatible'
drivers/net/dsa/sja1105/sja1105_main.c:3418 sja1105_check_device_id() warn: this array is probably non-NULL. 'match->compatible'
Old smatch warnings:
drivers/net/dsa/sja1105/sja1105_main.c:46 sja1105_port_allow_traffic() warn: should '(((1))) << to' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:47 sja1105_port_allow_traffic() warn: should '(((1))) << to' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:48 sja1105_port_allow_traffic() warn: should '(((1))) << to' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:188 sja1105_init_mii_settings() warn: is 'table->entries' large enough for 'struct sja1105_xmii_params_entry'? 1
drivers/net/dsa/sja1105/sja1105_main.c:191 sja1105_init_mii_settings() warn: is 'table->entries' large enough for 'struct sja1105_xmii_params_entry'? 1
drivers/net/dsa/sja1105/sja1105_main.c:197 sja1105_init_mii_settings() warn: is 'table->entries' large enough for 'struct sja1105_xmii_params_entry'? 1
drivers/net/dsa/sja1105/sja1105_main.c:202 sja1105_init_mii_settings() warn: is 'table->entries' large enough for 'struct sja1105_xmii_params_entry'? 1
drivers/net/dsa/sja1105/sja1105_main.c:562 sja1105_init_avb_params() warn: is 'table->entries' large enough for 'struct sja1105_avb_params_entry'? 1
drivers/net/dsa/sja1105/sja1105_main.c:1154 sja1105_find_static_fdb_entry() warn: should '((((1))) << port)' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:1272 sja1105et_fdb_add() warn: should '((((1))) << port)' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:1274 sja1105et_fdb_add() warn: should '(((1))) << port' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:1282 sja1105et_fdb_add() warn: should '(((1))) << port' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:1368 sja1105pqrs_fdb_add() warn: should '(((1))) << port' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:1376 sja1105pqrs_fdb_add() warn: should '((((1))) << port)' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:1381 sja1105pqrs_fdb_add() warn: should '(((1))) << port' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:1431 sja1105pqrs_fdb_del() warn: should '(((1))) << port' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:1515 sja1105_fdb_dump() warn: should '((((1))) << port)' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:1837 sja1105_static_config_reload() warn: bitwise AND condition is false here
drivers/net/dsa/sja1105/sja1105_main.c:2195 sja1105_build_bridge_vlans() warn: should '(((1))) << (v->port)' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:2196 sja1105_build_bridge_vlans() warn: should '(((1))) << (v->port)' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:2198 sja1105_build_bridge_vlans() warn: should '(((1))) << (v->port)' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:2217 sja1105_build_dsa_8021q_vlans() warn: should '(((1))) << (v->port)' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:2218 sja1105_build_dsa_8021q_vlans() warn: should '(((1))) << (v->port)' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:2220 sja1105_build_dsa_8021q_vlans() warn: should '(((1))) << (v->port)' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:2270 sja1105_build_subvlans() warn: should '(((1))) << (v->port)' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:2271 sja1105_build_subvlans() warn: should '(((1))) << upstream' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:2272 sja1105_build_subvlans() warn: should '(((1))) << (v->port)' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:2273 sja1105_build_subvlans() warn: should '(((1))) << upstream' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:2278 sja1105_build_subvlans() warn: should '(((1))) << (v->port)' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:2280 sja1105_build_subvlans() warn: should '(((1))) << upstream' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:2296 sja1105_build_subvlans() warn: should '(((1))) << (v->port)' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:2297 sja1105_build_subvlans() warn: should '(((1))) << upstream' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:2437 sja1105_build_crosschip_subvlans() warn: should '(((1))) << (tmp->port)' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:2438 sja1105_build_crosschip_subvlans() warn: should '(((1))) << upstream' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:2446 sja1105_build_crosschip_subvlans() warn: should '(((1))) << (tmp->port)' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:2447 sja1105_build_crosschip_subvlans() warn: should '(((1))) << upstream' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:2472 sja1105_build_crosschip_subvlans() warn: should '(((1))) << upstream' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:2473 sja1105_build_crosschip_subvlans() warn: should '(((1))) << (tmp->port)' be a 64 bit type?
drivers/net/dsa/sja1105/sja1105_main.c:2879 sja1105_best_effort_vlan_filtering_set() error: uninitialized symbol 'rc'.
drivers/net/dsa/sja1105/sja1105_main.c:3094 sja1105_mgmt_xmit() warn: should '(((1))) << port' be a 64 bit type?
vim +3418 drivers/net/dsa/sja1105/sja1105_main.c
3395
3396 static int sja1105_check_device_id(struct sja1105_private *priv)
3397 {
3398 const struct sja1105_regs *regs = priv->info->regs;
3399 u8 prod_id[SJA1105_SIZE_DEVICE_ID] = {0};
3400 struct device *dev = &priv->spidev->dev;
3401 const struct of_device_id *match;
3402 u32 device_id;
3403 u64 part_no;
3404 int rc;
3405
3406 rc = sja1105_xfer_u32(priv, SPI_READ, regs->device_id, &device_id,
3407 NULL);
3408 if (rc < 0)
3409 return rc;
3410
3411 rc = sja1105_xfer_buf(priv, SPI_READ, regs->prod_id, prod_id,
3412 SJA1105_SIZE_DEVICE_ID);
3413 if (rc < 0)
3414 return rc;
3415
3416 sja1105_unpack(prod_id, &part_no, 19, 4, SJA1105_SIZE_DEVICE_ID);
3417
> 3418 for (match = sja1105_dt_ids; match->compatible; match++) {
3419 const struct sja1105_info *info = match->data;
3420
3421 /* Is what's been probed in our match table at all? */
3422 if (info->device_id != device_id || info->part_no != part_no)
3423 continue;
3424
3425 /* But is it what's in the device tree? */
3426 if (priv->info->device_id != device_id ||
3427 priv->info->part_no != part_no) {
3428 dev_warn(dev, "Device tree specifies chip %s but found %s, please fix it!\n",
3429 priv->info->name, info->name);
3430 /* It isn't. No problem, pick that up. */
3431 priv->info = info;
3432 }
3433
3434 return 0;
3435 }
3436
3437 dev_err(dev, "Unexpected {device ID, part number}: 0x%x 0x%llx\n",
3438 device_id, part_no);
3439
3440 return -ENODEV;
3441 }
3442
---
0-DAY CI Kernel Test Service, Intel Corporation
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