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Date:   Tue, 1 Nov 2022 17:35:39 +0800
From:   kernel test robot <lkp@...el.com>
To:     Zhang Changzhong <zhangchangzhong@...wei.com>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Jeff Garzik <jgarzik@...ox.com>,
        Finn Thain <fthain@...ux-m68k.org>
Cc:     oe-kbuild-all@...ts.linux.dev, netdev@...r.kernel.org,
        Zhang Changzhong <zhangchangzhong@...wei.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] net/sonic: use dma_mapping_error() for error check

Hi Zhang,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on net/master]

url:    https://github.com/intel-lab-lkp/linux/commits/Zhang-Changzhong/net-sonic-use-dma_mapping_error-for-error-check/20221031-204340
patch link:    https://lore.kernel.org/r/1667221322-8317-1-git-send-email-zhangchangzhong%40huawei.com
patch subject: [PATCH net] net/sonic: use dma_mapping_error() for error check
config: m68k-defconfig
compiler: m68k-linux-gcc (GCC) 12.1.0
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
        # https://github.com/intel-lab-lkp/linux/commit/837273d17ba29bbc661c5c82432e83ce4198200a
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Zhang-Changzhong/net-sonic-use-dma_mapping_error-for-error-check/20221031-204340
        git checkout 837273d17ba29bbc661c5c82432e83ce4198200a
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from drivers/net/ethernet/natsemi/macsonic.c:533:
   drivers/net/ethernet/natsemi/sonic.c: In function 'sonic_send_packet':
   drivers/net/ethernet/natsemi/sonic.c:295:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
     295 |         if (dma_mapping_error(lp->device, laddr))
         |         ^~
   drivers/net/ethernet/natsemi/sonic.c:297:17: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
     297 |                 dev_kfree_skb_any(skb);
         |                 ^~~~~~~~~~~~~~~~~
   drivers/net/ethernet/natsemi/sonic.c:279:23: warning: unused variable 'flags' [-Wunused-variable]
     279 |         unsigned long flags;
         |                       ^~~~~
   drivers/net/ethernet/natsemi/sonic.c:278:13: warning: unused variable 'entry' [-Wunused-variable]
     278 |         int entry;
         |             ^~~~~
   In file included from include/linux/kref.h:16,
                    from include/linux/mm_types.h:8,
                    from include/linux/buildid.h:5,
                    from include/linux/module.h:14,
                    from drivers/net/ethernet/natsemi/macsonic.c:36:
   drivers/net/ethernet/natsemi/sonic.c: At top level:
   include/linux/spinlock.h:379:1: error: expected identifier or '(' before 'do'
     379 | do {                                                            \
         | ^~
   drivers/net/ethernet/natsemi/sonic.c:301:9: note: in expansion of macro 'spin_lock_irqsave'
     301 |         spin_lock_irqsave(&lp->lock, flags);
         |         ^~~~~~~~~~~~~~~~~
   include/linux/spinlock.h:381:3: error: expected identifier or '(' before 'while'
     381 | } while (0)
         |   ^~~~~
   drivers/net/ethernet/natsemi/sonic.c:301:9: note: in expansion of macro 'spin_lock_irqsave'
     301 |         spin_lock_irqsave(&lp->lock, flags);
         |         ^~~~~~~~~~~~~~~~~
   drivers/net/ethernet/natsemi/sonic.c:303:9: warning: data definition has no type or storage class
     303 |         entry = (lp->eol_tx + 1) & SONIC_TDS_MASK;
         |         ^~~~~
   drivers/net/ethernet/natsemi/sonic.c:303:9: error: type defaults to 'int' in declaration of 'entry' [-Werror=implicit-int]
   drivers/net/ethernet/natsemi/sonic.c:303:18: error: 'lp' undeclared here (not in a function); did you mean 'up'?
     303 |         entry = (lp->eol_tx + 1) & SONIC_TDS_MASK;
         |                  ^~
         |                  up
   drivers/net/ethernet/natsemi/sonic.c:305:34: error: expected ')' before numeric constant
     305 |         sonic_tda_put(dev, entry, SONIC_TD_STATUS, 0);       /* clear status */
         |                                  ^
         |                                  )
   drivers/net/ethernet/natsemi/sonic.c:306:34: error: expected ')' before numeric constant
     306 |         sonic_tda_put(dev, entry, SONIC_TD_FRAG_COUNT, 1);   /* single fragment */
         |                                  ^
         |                                  )
   drivers/net/ethernet/natsemi/sonic.c:307:34: error: expected ')' before numeric constant
     307 |         sonic_tda_put(dev, entry, SONIC_TD_PKTSIZE, length); /* length of packet */
         |                                  ^
         |                                  )
   drivers/net/ethernet/natsemi/sonic.c:308:34: error: expected ')' before numeric constant
     308 |         sonic_tda_put(dev, entry, SONIC_TD_FRAG_PTR_L, laddr & 0xffff);
         |                                  ^
         |                                  )
   drivers/net/ethernet/natsemi/sonic.c:309:34: error: expected ')' before numeric constant
     309 |         sonic_tda_put(dev, entry, SONIC_TD_FRAG_PTR_H, laddr >> 16);
         |                                  ^
         |                                  )
   drivers/net/ethernet/natsemi/sonic.c:310:34: error: expected ')' before numeric constant
     310 |         sonic_tda_put(dev, entry, SONIC_TD_FRAG_SIZE, length);
         |                                  ^
         |                                  )
   drivers/net/ethernet/natsemi/sonic.c:311:34: error: expected ')' before numeric constant
     311 |         sonic_tda_put(dev, entry, SONIC_TD_LINK,
         |                                  ^
         |                                  )
   drivers/net/ethernet/natsemi/sonic.c:314:30: error: expected ')' before '->' token
     314 |         sonic_tda_put(dev, lp->eol_tx, SONIC_TD_LINK, ~SONIC_EOL &
         |                              ^~
         |                              )
   In file included from include/linux/skbuff.h:45,
                    from include/net/net_namespace.h:43,
                    from include/linux/netdevice.h:38,
                    from drivers/net/ethernet/natsemi/macsonic.c:47:
>> include/net/net_debug.h:123:2: error: expected identifier or '(' before '{' token
     123 | ({                                                                      \
         |  ^
   drivers/net/ethernet/natsemi/sonic.c:317:9: note: in expansion of macro 'netif_dbg'
     317 |         netif_dbg(lp, tx_queued, dev, "%s: issuing Tx command\n", __func__);
         |         ^~~~~~~~~
   In file included from arch/m68k/include/asm/io_mm.h:25,
                    from arch/m68k/include/asm/io.h:8,
                    from include/linux/io.h:13,
                    from include/linux/irq.h:20,
                    from include/asm-generic/hardirq.h:17,
                    from ./arch/m68k/include/generated/asm/hardirq.h:1,
                    from include/linux/hardirq.h:11,
                    from include/linux/interrupt.h:11,
                    from drivers/net/ethernet/natsemi/macsonic.c:40:
   arch/m68k/include/asm/raw_io.h:31:27: error: expected identifier or '(' before 'void'
      31 | #define out_be16(addr,w) (void)((*(__force volatile u16 *) (unsigned long)(addr)) = (w))
         |                           ^~~~
   arch/m68k/include/asm/raw_io.h:44:28: note: in expansion of macro 'out_be16'
      44 | #define raw_outw(val,port) out_be16((port),(val))
         |                            ^~~~~~~~
   arch/m68k/include/asm/nubus.h:13:22: note: in expansion of macro 'raw_outw'
      13 | #define nubus_writew raw_outw
         |                      ^~~~~~~~
   drivers/net/ethernet/natsemi/macsonic.c:70:31: note: in expansion of macro 'nubus_writew'
      70 | #define SONIC_WRITE(reg,val) (nubus_writew(val, dev->base_addr + (reg * 4) \
         |                               ^~~~~~~~~~~~
   drivers/net/ethernet/natsemi/sonic.c:319:9: note: in expansion of macro 'SONIC_WRITE'
     319 |         SONIC_WRITE(SONIC_CMD, SONIC_CR_TXP);
         |         ^~~~~~~~~~~
   arch/m68k/include/asm/raw_io.h:31:32: error: expected ')' before '(' token
      31 | #define out_be16(addr,w) (void)((*(__force volatile u16 *) (unsigned long)(addr)) = (w))
         |                                ^
   arch/m68k/include/asm/raw_io.h:44:28: note: in expansion of macro 'out_be16'
      44 | #define raw_outw(val,port) out_be16((port),(val))
         |                            ^~~~~~~~
   arch/m68k/include/asm/nubus.h:13:22: note: in expansion of macro 'raw_outw'
      13 | #define nubus_writew raw_outw
         |                      ^~~~~~~~
   drivers/net/ethernet/natsemi/macsonic.c:70:31: note: in expansion of macro 'nubus_writew'
      70 | #define SONIC_WRITE(reg,val) (nubus_writew(val, dev->base_addr + (reg * 4) \
         |                               ^~~~~~~~~~~~
   drivers/net/ethernet/natsemi/sonic.c:319:9: note: in expansion of macro 'SONIC_WRITE'
     319 |         SONIC_WRITE(SONIC_CMD, SONIC_CR_TXP);
         |         ^~~~~~~~~~~
   drivers/net/ethernet/natsemi/sonic.c:321:11: error: expected '=', ',', ';', 'asm' or '__attribute__' before '->' token
     321 |         lp->tx_len[entry] = length;
         |           ^~
   drivers/net/ethernet/natsemi/sonic.c:322:11: error: expected '=', ',', ';', 'asm' or '__attribute__' before '->' token
     322 |         lp->tx_laddr[entry] = laddr;
         |           ^~
   drivers/net/ethernet/natsemi/sonic.c:323:11: error: expected '=', ',', ';', 'asm' or '__attribute__' before '->' token
     323 |         lp->tx_skb[entry] = skb;
         |           ^~
   drivers/net/ethernet/natsemi/sonic.c:325:11: error: expected '=', ',', ';', 'asm' or '__attribute__' before '->' token
     325 |         lp->eol_tx = entry;
         |           ^~
   drivers/net/ethernet/natsemi/sonic.c:327:9: warning: data definition has no type or storage class
     327 |         entry = (entry + 1) & SONIC_TDS_MASK;
         |         ^~~~~
   drivers/net/ethernet/natsemi/sonic.c:327:9: error: type defaults to 'int' in declaration of 'entry' [-Werror=implicit-int]
   drivers/net/ethernet/natsemi/sonic.c:327:9: error: redefinition of 'entry'
   drivers/net/ethernet/natsemi/sonic.c:303:9: note: previous definition of 'entry' with type 'int'
     303 |         entry = (lp->eol_tx + 1) & SONIC_TDS_MASK;
         |         ^~~~~
   drivers/net/ethernet/natsemi/sonic.c:327:17: error: initializer element is not constant
     327 |         entry = (entry + 1) & SONIC_TDS_MASK;
         |                 ^
   drivers/net/ethernet/natsemi/sonic.c:328:9: error: expected identifier or '(' before 'if'
     328 |         if (lp->tx_skb[entry]) {
         |         ^~
   drivers/net/ethernet/natsemi/sonic.c:335:32: error: expected declaration specifiers or '...' before '&' token
     335 |         spin_unlock_irqrestore(&lp->lock, flags);
         |                                ^
   drivers/net/ethernet/natsemi/sonic.c:335:43: error: unknown type name 'flags'
     335 |         spin_unlock_irqrestore(&lp->lock, flags);
         |                                           ^~~~~
   drivers/net/ethernet/natsemi/sonic.c:337:9: error: expected identifier or '(' before 'return'
     337 |         return NETDEV_TX_OK;
         |         ^~~~~~
   drivers/net/ethernet/natsemi/sonic.c:338:1: error: expected identifier or '(' before '}' token
     338 | }
         | ^
   cc1: some warnings being treated as errors


vim +123 include/net/net_debug.h

5b87be9e4978fe Eric Dumazet 2022-05-09   95  
5b87be9e4978fe Eric Dumazet 2022-05-09   96  #define netif_emerg(priv, type, dev, fmt, args...)		\
5b87be9e4978fe Eric Dumazet 2022-05-09   97  	netif_level(emerg, priv, type, dev, fmt, ##args)
5b87be9e4978fe Eric Dumazet 2022-05-09   98  #define netif_alert(priv, type, dev, fmt, args...)		\
5b87be9e4978fe Eric Dumazet 2022-05-09   99  	netif_level(alert, priv, type, dev, fmt, ##args)
5b87be9e4978fe Eric Dumazet 2022-05-09  100  #define netif_crit(priv, type, dev, fmt, args...)		\
5b87be9e4978fe Eric Dumazet 2022-05-09  101  	netif_level(crit, priv, type, dev, fmt, ##args)
5b87be9e4978fe Eric Dumazet 2022-05-09  102  #define netif_err(priv, type, dev, fmt, args...)		\
5b87be9e4978fe Eric Dumazet 2022-05-09  103  	netif_level(err, priv, type, dev, fmt, ##args)
5b87be9e4978fe Eric Dumazet 2022-05-09  104  #define netif_warn(priv, type, dev, fmt, args...)		\
5b87be9e4978fe Eric Dumazet 2022-05-09  105  	netif_level(warn, priv, type, dev, fmt, ##args)
5b87be9e4978fe Eric Dumazet 2022-05-09  106  #define netif_notice(priv, type, dev, fmt, args...)		\
5b87be9e4978fe Eric Dumazet 2022-05-09  107  	netif_level(notice, priv, type, dev, fmt, ##args)
5b87be9e4978fe Eric Dumazet 2022-05-09  108  #define netif_info(priv, type, dev, fmt, args...)		\
5b87be9e4978fe Eric Dumazet 2022-05-09  109  	netif_level(info, priv, type, dev, fmt, ##args)
5b87be9e4978fe Eric Dumazet 2022-05-09  110  
5b87be9e4978fe Eric Dumazet 2022-05-09  111  #if defined(CONFIG_DYNAMIC_DEBUG) || \
5b87be9e4978fe Eric Dumazet 2022-05-09  112  	(defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE))
5b87be9e4978fe Eric Dumazet 2022-05-09  113  #define netif_dbg(priv, type, netdev, format, args...)		\
5b87be9e4978fe Eric Dumazet 2022-05-09  114  do {								\
5b87be9e4978fe Eric Dumazet 2022-05-09  115  	if (netif_msg_##type(priv))				\
5b87be9e4978fe Eric Dumazet 2022-05-09  116  		dynamic_netdev_dbg(netdev, format, ##args);	\
5b87be9e4978fe Eric Dumazet 2022-05-09  117  } while (0)
5b87be9e4978fe Eric Dumazet 2022-05-09  118  #elif defined(DEBUG)
5b87be9e4978fe Eric Dumazet 2022-05-09  119  #define netif_dbg(priv, type, dev, format, args...)		\
5b87be9e4978fe Eric Dumazet 2022-05-09  120  	netif_printk(priv, type, KERN_DEBUG, dev, format, ##args)
5b87be9e4978fe Eric Dumazet 2022-05-09  121  #else
5b87be9e4978fe Eric Dumazet 2022-05-09  122  #define netif_dbg(priv, type, dev, format, args...)			\
5b87be9e4978fe Eric Dumazet 2022-05-09 @123  ({									\
5b87be9e4978fe Eric Dumazet 2022-05-09  124  	if (0)								\
5b87be9e4978fe Eric Dumazet 2022-05-09  125  		netif_printk(priv, type, KERN_DEBUG, dev, format, ##args); \
5b87be9e4978fe Eric Dumazet 2022-05-09  126  	0;								\
5b87be9e4978fe Eric Dumazet 2022-05-09  127  })
5b87be9e4978fe Eric Dumazet 2022-05-09  128  #endif
5b87be9e4978fe Eric Dumazet 2022-05-09  129  

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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