* [mkl-can-next:testing 5/28] net/can/j1939/transport.c:811:25: error: use of undeclared identifier 'skcb'
@ 2021-06-28 15:34 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2021-06-28 15:34 UTC (permalink / raw)
To: Marc Kleine-Budde; +Cc: clang-built-linux, kbuild-all, linux-can
[-- Attachment #1: Type: text/plain, Size: 14228 bytes --]
tree: https://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next.git testing
head: ca9280f6324bf09ec5d3667579f7dd3f7567e809
commit: a2ea50608a02ac48371a9fab0167c1b44457913e [5/28] can: j1939: j1939_session_tx_dat(): use consistent name se_skcb for session skb control buffer
config: powerpc64-buildonly-randconfig-r004-20210628 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 4c92e31dd0f1bd152eda883af20ff7fbcaa14945)
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 powerpc64 cross compiling tool for clang build
# apt-get install binutils-powerpc64-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next.git/commit/?id=a2ea50608a02ac48371a9fab0167c1b44457913e
git remote add mkl-can-next https://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next.git
git fetch --no-tags mkl-can-next testing
git checkout a2ea50608a02ac48371a9fab0167c1b44457913e
# save the attached .config to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=powerpc SHELL=/bin/bash net/can/j1939/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:103:1: note: expanded from here
__do_insb
^
arch/powerpc/include/asm/io.h:556:56: note: expanded from macro '__do_insb'
#define __do_insb(p, b, n) readsb((PCI_IO_ADDR)_IO_BASE+(p), (b), (n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from net/can/j1939/transport.c:11:
In file included from include/linux/can/skb.h: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/powerpc/include/asm/io.h:619:
arch/powerpc/include/asm/io-defs.h:45:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(insw, (unsigned long p, void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:105:1: note: expanded from here
__do_insw
^
arch/powerpc/include/asm/io.h:557:56: note: expanded from macro '__do_insw'
#define __do_insw(p, b, n) readsw((PCI_IO_ADDR)_IO_BASE+(p), (b), (n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from net/can/j1939/transport.c:11:
In file included from include/linux/can/skb.h: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/powerpc/include/asm/io.h:619:
arch/powerpc/include/asm/io-defs.h:47:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(insl, (unsigned long p, void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:107:1: note: expanded from here
__do_insl
^
arch/powerpc/include/asm/io.h:558:56: note: expanded from macro '__do_insl'
#define __do_insl(p, b, n) readsl((PCI_IO_ADDR)_IO_BASE+(p), (b), (n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from net/can/j1939/transport.c:11:
In file included from include/linux/can/skb.h: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/powerpc/include/asm/io.h:619:
arch/powerpc/include/asm/io-defs.h:49:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(outsb, (unsigned long p, const void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:109:1: note: expanded from here
__do_outsb
^
arch/powerpc/include/asm/io.h:559:58: note: expanded from macro '__do_outsb'
#define __do_outsb(p, b, n) writesb((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from net/can/j1939/transport.c:11:
In file included from include/linux/can/skb.h: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/powerpc/include/asm/io.h:619:
arch/powerpc/include/asm/io-defs.h:51:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(outsw, (unsigned long p, const void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:111:1: note: expanded from here
__do_outsw
^
arch/powerpc/include/asm/io.h:560:58: note: expanded from macro '__do_outsw'
#define __do_outsw(p, b, n) writesw((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from net/can/j1939/transport.c:11:
In file included from include/linux/can/skb.h: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/powerpc/include/asm/io.h:619:
arch/powerpc/include/asm/io-defs.h:53:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(outsl, (unsigned long p, const void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:113:1: note: expanded from here
__do_outsl
^
arch/powerpc/include/asm/io.h:561:58: note: expanded from macro '__do_outsl'
#define __do_outsl(p, b, n) writesl((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
~~~~~~~~~~~~~~~~~~~~~^
>> net/can/j1939/transport.c:811:25: error: use of undeclared identifier 'skcb'
__func__, session, skcb->offset,
^
7 warnings and 1 error generated.
vim +/skcb +811 net/can/j1939/transport.c
9d71dd0c700999 The j1939 authors 2018-10-08 775
9d71dd0c700999 The j1939 authors 2018-10-08 776 static int j1939_session_tx_dat(struct j1939_session *session)
9d71dd0c700999 The j1939 authors 2018-10-08 777 {
9d71dd0c700999 The j1939 authors 2018-10-08 778 struct j1939_priv *priv = session->priv;
a2ea50608a02ac Marc Kleine-Budde 2021-05-21 779 struct j1939_sk_buff_cb *se_skcb;
9d71dd0c700999 The j1939 authors 2018-10-08 780 int offset, pkt_done, pkt_end;
9d71dd0c700999 The j1939 authors 2018-10-08 781 unsigned int len, pdelay;
9d71dd0c700999 The j1939 authors 2018-10-08 782 struct sk_buff *se_skb;
9d71dd0c700999 The j1939 authors 2018-10-08 783 const u8 *tpdat;
9d71dd0c700999 The j1939 authors 2018-10-08 784 int ret = 0;
9d71dd0c700999 The j1939 authors 2018-10-08 785 u8 dat[8];
9d71dd0c700999 The j1939 authors 2018-10-08 786
2030043e616cab Oleksij Rempel 2021-05-21 787 se_skb = j1939_session_skb_get_by_offset(session, session->pkt.tx * 7);
9d71dd0c700999 The j1939 authors 2018-10-08 788 if (!se_skb)
9d71dd0c700999 The j1939 authors 2018-10-08 789 return -ENOBUFS;
9d71dd0c700999 The j1939 authors 2018-10-08 790
a2ea50608a02ac Marc Kleine-Budde 2021-05-21 791 se_skcb = j1939_skb_to_cb(se_skb);
9d71dd0c700999 The j1939 authors 2018-10-08 792 tpdat = se_skb->data;
9d71dd0c700999 The j1939 authors 2018-10-08 793 ret = 0;
9d71dd0c700999 The j1939 authors 2018-10-08 794 pkt_done = 0;
9d71dd0c700999 The j1939 authors 2018-10-08 795 if (session->skcb.addr.type != J1939_ETP &&
9d71dd0c700999 The j1939 authors 2018-10-08 796 j1939_cb_is_broadcast(&session->skcb))
9d71dd0c700999 The j1939 authors 2018-10-08 797 pkt_end = session->pkt.total;
9d71dd0c700999 The j1939 authors 2018-10-08 798 else
9d71dd0c700999 The j1939 authors 2018-10-08 799 pkt_end = session->pkt.last;
9d71dd0c700999 The j1939 authors 2018-10-08 800
9d71dd0c700999 The j1939 authors 2018-10-08 801 while (session->pkt.tx < pkt_end) {
9d71dd0c700999 The j1939 authors 2018-10-08 802 dat[0] = session->pkt.tx - session->pkt.dpo + 1;
a2ea50608a02ac Marc Kleine-Budde 2021-05-21 803 offset = (session->pkt.tx * 7) - se_skcb->offset;
9d71dd0c700999 The j1939 authors 2018-10-08 804 len = se_skb->len - offset;
9d71dd0c700999 The j1939 authors 2018-10-08 805 if (len > 7)
9d71dd0c700999 The j1939 authors 2018-10-08 806 len = 7;
9d71dd0c700999 The j1939 authors 2018-10-08 807
cd3b3636c99fca Oleksij Rempel 2020-08-07 808 if (offset + len > se_skb->len) {
cd3b3636c99fca Oleksij Rempel 2020-08-07 809 netdev_err_once(priv->ndev,
cd3b3636c99fca Oleksij Rempel 2020-08-07 810 "%s: 0x%p: requested data outside of queued buffer: offset %i, len %i, pkt.tx: %i\n",
563289f4161c81 Marc Kleine-Budde 2021-06-16 @811 __func__, session, skcb->offset,
563289f4161c81 Marc Kleine-Budde 2021-06-16 812 se_skb->len , session->pkt.tx);
2030043e616cab Oleksij Rempel 2021-05-21 813 ret = -EOVERFLOW;
2030043e616cab Oleksij Rempel 2021-05-21 814 goto out_free;
cd3b3636c99fca Oleksij Rempel 2020-08-07 815 }
cd3b3636c99fca Oleksij Rempel 2020-08-07 816
cd3b3636c99fca Oleksij Rempel 2020-08-07 817 if (!len) {
cd3b3636c99fca Oleksij Rempel 2020-08-07 818 ret = -ENOBUFS;
cd3b3636c99fca Oleksij Rempel 2020-08-07 819 break;
cd3b3636c99fca Oleksij Rempel 2020-08-07 820 }
cd3b3636c99fca Oleksij Rempel 2020-08-07 821
9d71dd0c700999 The j1939 authors 2018-10-08 822 memcpy(&dat[1], &tpdat[offset], len);
9d71dd0c700999 The j1939 authors 2018-10-08 823 ret = j1939_tp_tx_dat(session, dat, len + 1);
9d71dd0c700999 The j1939 authors 2018-10-08 824 if (ret < 0) {
9d71dd0c700999 The j1939 authors 2018-10-08 825 /* ENOBUS == CAN interface TX queue is full */
9d71dd0c700999 The j1939 authors 2018-10-08 826 if (ret != -ENOBUFS)
9d71dd0c700999 The j1939 authors 2018-10-08 827 netdev_alert(priv->ndev,
9d71dd0c700999 The j1939 authors 2018-10-08 828 "%s: 0x%p: queue data error: %i\n",
9d71dd0c700999 The j1939 authors 2018-10-08 829 __func__, session, ret);
9d71dd0c700999 The j1939 authors 2018-10-08 830 break;
9d71dd0c700999 The j1939 authors 2018-10-08 831 }
9d71dd0c700999 The j1939 authors 2018-10-08 832
9d71dd0c700999 The j1939 authors 2018-10-08 833 session->last_txcmd = 0xff;
9d71dd0c700999 The j1939 authors 2018-10-08 834 pkt_done++;
9d71dd0c700999 The j1939 authors 2018-10-08 835 session->pkt.tx++;
9d71dd0c700999 The j1939 authors 2018-10-08 836 pdelay = j1939_cb_is_broadcast(&session->skcb) ? 50 :
9d71dd0c700999 The j1939 authors 2018-10-08 837 j1939_tp_packet_delay;
9d71dd0c700999 The j1939 authors 2018-10-08 838
9d71dd0c700999 The j1939 authors 2018-10-08 839 if (session->pkt.tx < session->pkt.total && pdelay) {
9d71dd0c700999 The j1939 authors 2018-10-08 840 j1939_tp_schedule_txtimer(session, pdelay);
9d71dd0c700999 The j1939 authors 2018-10-08 841 break;
9d71dd0c700999 The j1939 authors 2018-10-08 842 }
9d71dd0c700999 The j1939 authors 2018-10-08 843 }
9d71dd0c700999 The j1939 authors 2018-10-08 844
9d71dd0c700999 The j1939 authors 2018-10-08 845 if (pkt_done)
9d71dd0c700999 The j1939 authors 2018-10-08 846 j1939_tp_set_rxtimeout(session, 250);
9d71dd0c700999 The j1939 authors 2018-10-08 847
2030043e616cab Oleksij Rempel 2021-05-21 848 out_free:
2030043e616cab Oleksij Rempel 2021-05-21 849 if (ret)
2030043e616cab Oleksij Rempel 2021-05-21 850 kfree_skb(se_skb);
2030043e616cab Oleksij Rempel 2021-05-21 851 else
2030043e616cab Oleksij Rempel 2021-05-21 852 consume_skb(se_skb);
2030043e616cab Oleksij Rempel 2021-05-21 853
9d71dd0c700999 The j1939 authors 2018-10-08 854 return ret;
9d71dd0c700999 The j1939 authors 2018-10-08 855 }
9d71dd0c700999 The j1939 authors 2018-10-08 856
:::::: The code at line 811 was first introduced by commit
:::::: 563289f4161c81b55ce19c05cd8ba2737fb26240 can: j1939: fix checkpatch warnings
:::::: TO: Marc Kleine-Budde <mkl@pengutronix.de>
:::::: CC: Marc Kleine-Budde <mkl@pengutronix.de>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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