tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 65f0d2414b7079556fbbcc070b3d1c9f9587606d commit: 7a7899f6f58e3270ccfd200ee63ebced5ddba3c9 media: vidtv: psi: Implement an Event Information Table (EIT) date: 7 weeks ago config: mips-randconfig-r026-20210114 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 68ff52ffead2ba25cca442778ab19286000daad7) 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 mips cross compiling tool for clang build # apt-get install binutils-mips-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7a7899f6f58e3270ccfd200ee63ebced5ddba3c9 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 7a7899f6f58e3270ccfd200ee63ebced5ddba3c9 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): return xchg(&v->counter, n); \ ^ arch/mips/include/asm/cmpxchg.h:102:7: note: expanded from macro 'xchg' if (!__SYNC_loongson3_war) \ ^ arch/mips/include/asm/sync.h:147:34: note: expanded from macro '__SYNC_loongson3_war' # define __SYNC_loongson3_war (1 << 31) ^ In file included from drivers/media/test-drivers/vidtv/vidtv_psi.c:16: In file included from include/linux/slab.h:15: In file included from include/linux/gfp.h:6: In file included from include/linux/mmzone.h:8: In file included from include/linux/spinlock.h:51: In file included from include/linux/preempt.h:78: In file included from ./arch/mips/include/generated/asm/preempt.h:1: In file included from include/asm-generic/preempt.h:5: In file included from include/linux/thread_info.h:38: In file included from arch/mips/include/asm/thread_info.h:16: In file included from arch/mips/include/asm/processor.h:14: In file included from include/linux/atomic.h:7: arch/mips/include/asm/atomic.h:257:1: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] ATOMIC_SIP_OP(atomic, int, subu, ll, sc) ^ arch/mips/include/asm/atomic.h:251:7: note: expanded from macro 'ATOMIC_SIP_OP' if (!__SYNC_loongson3_war) \ ^ arch/mips/include/asm/sync.h:147:34: note: expanded from macro '__SYNC_loongson3_war' # define __SYNC_loongson3_war (1 << 31) ^ In file included from drivers/media/test-drivers/vidtv/vidtv_psi.c:16: In file included from include/linux/slab.h:15: In file included from include/linux/gfp.h:6: In file included from include/linux/mmzone.h:8: In file included from include/linux/spinlock.h:51: In file included from include/linux/preempt.h:78: In file included from ./arch/mips/include/generated/asm/preempt.h:1: In file included from include/asm-generic/preempt.h:5: In file included from include/linux/thread_info.h:38: In file included from arch/mips/include/asm/thread_info.h:16: In file included from arch/mips/include/asm/processor.h:14: In file included from include/linux/atomic.h:7: arch/mips/include/asm/atomic.h:261:1: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] ATOMIC_SIP_OP(atomic64, s64, dsubu, lld, scd) ^ arch/mips/include/asm/atomic.h:251:7: note: expanded from macro 'ATOMIC_SIP_OP' if (!__SYNC_loongson3_war) \ ^ arch/mips/include/asm/sync.h:147:34: note: expanded from macro '__SYNC_loongson3_war' # define __SYNC_loongson3_war (1 << 31) ^ In file included from drivers/media/test-drivers/vidtv/vidtv_psi.c:16: In file included from include/linux/slab.h:15: In file included from include/linux/gfp.h:6: In file included from include/linux/mmzone.h:8: In file included from include/linux/spinlock.h:59: In file included from include/linux/lockdep.h:14: In file included from include/linux/smp.h:15: In file included from include/linux/smp_types.h:5: include/linux/llist.h:222:9: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] return xchg(&head->first, NULL); ^ arch/mips/include/asm/cmpxchg.h:102:7: note: expanded from macro 'xchg' if (!__SYNC_loongson3_war) \ ^ arch/mips/include/asm/sync.h:147:34: note: expanded from macro '__SYNC_loongson3_war' # define __SYNC_loongson3_war (1 << 31) ^ In file included from drivers/media/test-drivers/vidtv/vidtv_psi.c:16: In file included from include/linux/slab.h:15: In file included from include/linux/gfp.h:6: In file included from include/linux/mmzone.h:8: In file included from include/linux/spinlock.h:59: In file included from include/linux/lockdep.h:27: include/linux/debug_locks.h:17:9: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] return xchg(&debug_locks, 0); ^ arch/mips/include/asm/cmpxchg.h:102:7: note: expanded from macro 'xchg' if (!__SYNC_loongson3_war) \ ^ arch/mips/include/asm/sync.h:147:34: note: expanded from macro '__SYNC_loongson3_war' # define __SYNC_loongson3_war (1 << 31) ^ drivers/media/test-drivers/vidtv/vidtv_psi.c:850:31: warning: taking address of packed member 'bitfield2' of class or structure 'vidtv_psi_table_pmt' may result in an unaligned pointer value [-Waddress-of-packed-member] vidtv_psi_set_desc_loop_len(&pmt->bitfield2, desc_loop_len, 10); ^~~~~~~~~~~~~~ drivers/media/test-drivers/vidtv/vidtv_psi.c:861:32: warning: taking address of packed member 'bitfield2' of class or structure 'vidtv_psi_table_pmt_stream' may result in an unaligned pointer value [-Waddress-of-packed-member] vidtv_psi_set_desc_loop_len(&s->bitfield2, desc_loop_len, 10); ^~~~~~~~~~~~ drivers/media/test-drivers/vidtv/vidtv_psi.c:893:32: warning: taking address of packed member 'bitfield' of class or structure 'vidtv_psi_table_sdt_service' may result in an unaligned pointer value [-Waddress-of-packed-member] vidtv_psi_set_desc_loop_len(&s->bitfield, desc_loop_len, 12); ^~~~~~~~~~~ drivers/media/test-drivers/vidtv/vidtv_psi.c:1556:31: warning: taking address of packed member 'bitfield' of class or structure 'vidtv_psi_table_nit' may result in an unaligned pointer value [-Waddress-of-packed-member] vidtv_psi_set_desc_loop_len(&nit->bitfield, desc_loop_len, 12); ^~~~~~~~~~~~~ drivers/media/test-drivers/vidtv/vidtv_psi.c:1571:32: warning: taking address of packed member 'bitfield' of class or structure 'vidtv_psi_table_transport' may result in an unaligned pointer value [-Waddress-of-packed-member] vidtv_psi_set_desc_loop_len(&t->bitfield, desc_loop_len, 12); ^~~~~~~~~~~ drivers/media/test-drivers/vidtv/vidtv_psi.c:1579:31: warning: taking address of packed member 'bitfield2' of class or structure 'vidtv_psi_table_nit' may result in an unaligned pointer value [-Waddress-of-packed-member] vidtv_psi_set_desc_loop_len(&nit->bitfield2, transport_loop_len, 12); ^~~~~~~~~~~~~~ >> drivers/media/test-drivers/vidtv/vidtv_psi.c:1778:32: warning: taking address of packed member 'bitfield' of class or structure 'vidtv_psi_table_eit_event' may result in an unaligned pointer value [-Waddress-of-packed-member] vidtv_psi_set_desc_loop_len(&e->bitfield, desc_loop_len, 12); ^~~~~~~~~~~ drivers/media/test-drivers/vidtv/vidtv_psi.c:93:19: warning: unused function 'vidtv_psi_sdt_serv_get_desc_loop_len' [-Wunused-function] static inline u16 vidtv_psi_sdt_serv_get_desc_loop_len(struct vidtv_psi_table_sdt_service *s) ^ drivers/media/test-drivers/vidtv/vidtv_psi.c:104:19: warning: unused function 'vidtv_psi_pmt_stream_get_desc_loop_len' [-Wunused-function] static inline u16 vidtv_psi_pmt_stream_get_desc_loop_len(struct vidtv_psi_table_pmt_stream *s) ^ drivers/media/test-drivers/vidtv/vidtv_psi.c:115:19: warning: unused function 'vidtv_psi_pmt_get_desc_loop_len' [-Wunused-function] static inline u16 vidtv_psi_pmt_get_desc_loop_len(struct vidtv_psi_table_pmt *p) ^ 20 warnings generated. -- ^ arch/mips/include/asm/sync.h:147:34: note: expanded from macro '__SYNC_loongson3_war' # define __SYNC_loongson3_war (1 << 31) ^ In file included from drivers/media/test-drivers/vidtv/vidtv_channel.c:23: In file included from include/linux/slab.h:15: In file included from include/linux/gfp.h:6: In file included from include/linux/mmzone.h:8: In file included from include/linux/spinlock.h:51: In file included from include/linux/preempt.h:78: In file included from ./arch/mips/include/generated/asm/preempt.h:1: In file included from include/asm-generic/preempt.h:5: In file included from include/linux/thread_info.h:38: In file included from arch/mips/include/asm/thread_info.h:16: In file included from arch/mips/include/asm/processor.h:14: In file included from include/linux/atomic.h:7: arch/mips/include/asm/atomic.h:52:1: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] arch/mips/include/asm/atomic.h:45:9: note: expanded from macro 'ATOMIC_OPS' return xchg(&v->counter, n); \ ^ arch/mips/include/asm/cmpxchg.h:102:7: note: expanded from macro 'xchg' if (!__SYNC_loongson3_war) \ ^ arch/mips/include/asm/sync.h:147:34: note: expanded from macro '__SYNC_loongson3_war' # define __SYNC_loongson3_war (1 << 31) ^ In file included from drivers/media/test-drivers/vidtv/vidtv_channel.c:23: In file included from include/linux/slab.h:15: In file included from include/linux/gfp.h:6: In file included from include/linux/mmzone.h:8: In file included from include/linux/spinlock.h:51: In file included from include/linux/preempt.h:78: In file included from ./arch/mips/include/generated/asm/preempt.h:1: In file included from include/asm-generic/preempt.h:5: In file included from include/linux/thread_info.h:38: In file included from arch/mips/include/asm/thread_info.h:16: In file included from arch/mips/include/asm/processor.h:14: In file included from include/linux/atomic.h:7: arch/mips/include/asm/atomic.h:257:1: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] ATOMIC_SIP_OP(atomic, int, subu, ll, sc) ^ arch/mips/include/asm/atomic.h:251:7: note: expanded from macro 'ATOMIC_SIP_OP' if (!__SYNC_loongson3_war) \ ^ arch/mips/include/asm/sync.h:147:34: note: expanded from macro '__SYNC_loongson3_war' # define __SYNC_loongson3_war (1 << 31) ^ In file included from drivers/media/test-drivers/vidtv/vidtv_channel.c:23: In file included from include/linux/slab.h:15: In file included from include/linux/gfp.h:6: In file included from include/linux/mmzone.h:8: In file included from include/linux/spinlock.h:51: In file included from include/linux/preempt.h:78: In file included from ./arch/mips/include/generated/asm/preempt.h:1: In file included from include/asm-generic/preempt.h:5: In file included from include/linux/thread_info.h:38: In file included from arch/mips/include/asm/thread_info.h:16: In file included from arch/mips/include/asm/processor.h:14: In file included from include/linux/atomic.h:7: arch/mips/include/asm/atomic.h:261:1: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] ATOMIC_SIP_OP(atomic64, s64, dsubu, lld, scd) ^ arch/mips/include/asm/atomic.h:251:7: note: expanded from macro 'ATOMIC_SIP_OP' if (!__SYNC_loongson3_war) \ ^ arch/mips/include/asm/sync.h:147:34: note: expanded from macro '__SYNC_loongson3_war' # define __SYNC_loongson3_war (1 << 31) ^ In file included from drivers/media/test-drivers/vidtv/vidtv_channel.c:23: In file included from include/linux/slab.h:15: In file included from include/linux/gfp.h:6: In file included from include/linux/mmzone.h:8: In file included from include/linux/spinlock.h:59: In file included from include/linux/lockdep.h:14: In file included from include/linux/smp.h:15: In file included from include/linux/smp_types.h:5: include/linux/llist.h:222:9: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] return xchg(&head->first, NULL); ^ arch/mips/include/asm/cmpxchg.h:102:7: note: expanded from macro 'xchg' if (!__SYNC_loongson3_war) \ ^ arch/mips/include/asm/sync.h:147:34: note: expanded from macro '__SYNC_loongson3_war' # define __SYNC_loongson3_war (1 << 31) ^ In file included from drivers/media/test-drivers/vidtv/vidtv_channel.c:23: In file included from include/linux/slab.h:15: In file included from include/linux/gfp.h:6: In file included from include/linux/mmzone.h:8: In file included from include/linux/spinlock.h:59: In file included from include/linux/lockdep.h:27: include/linux/debug_locks.h:17:9: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] return xchg(&debug_locks, 0); ^ arch/mips/include/asm/cmpxchg.h:102:7: note: expanded from macro 'xchg' if (!__SYNC_loongson3_war) \ ^ arch/mips/include/asm/sync.h:147:34: note: expanded from macro '__SYNC_loongson3_war' # define __SYNC_loongson3_war (1 << 31) ^ >> drivers/media/test-drivers/vidtv/vidtv_channel.c:147:27: warning: taking address of packed member 'descriptor' of class or structure 'vidtv_psi_table_eit_event' may result in an unaligned pointer value [-Waddress-of-packed-member] vidtv_psi_desc_assign(&tail->descriptor, desc); ^~~~~~~~~~~~~~~~ drivers/media/test-drivers/vidtv/vidtv_channel.c:192:27: warning: taking address of packed member 'descriptor' of class or structure 'vidtv_psi_table_sdt_service' may result in an unaligned pointer value [-Waddress-of-packed-member] vidtv_psi_desc_assign(&tail->descriptor, desc); ^~~~~~~~~~~~~~~~ drivers/media/test-drivers/vidtv/vidtv_channel.c:292:29: warning: taking address of packed member 'descriptor' of class or structure 'vidtv_psi_table_pmt_stream' may result in an unaligned pointer value [-Waddress-of-packed-member] vidtv_psi_desc_assign(&tail->descriptor, desc); ^~~~~~~~~~~~~~~~ 13 warnings generated. vim +1778 drivers/media/test-drivers/vidtv/vidtv_psi.c 1758 1759 void vidtv_psi_eit_table_update_sec_len(struct vidtv_psi_table_eit *eit) 1760 { 1761 u16 length = 0; 1762 struct vidtv_psi_table_eit_event *e = eit->event; 1763 u16 desc_loop_len; 1764 1765 /* 1766 * from immediately after 'section_length' until 1767 * 'last_table_id' 1768 */ 1769 length += EIT_LEN_UNTIL_LAST_TABLE_ID; 1770 1771 while (e) { 1772 /* skip both pointers at the end */ 1773 length += sizeof(struct vidtv_psi_table_eit_event) - 1774 sizeof(struct vidtv_psi_desc *) - 1775 sizeof(struct vidtv_psi_table_eit_event *); 1776 1777 desc_loop_len = vidtv_psi_desc_comp_loop_len(e->descriptor); > 1778 vidtv_psi_set_desc_loop_len(&e->bitfield, desc_loop_len, 12); 1779 1780 length += desc_loop_len; 1781 1782 e = e->next; 1783 } 1784 1785 length += CRC_SIZE_IN_BYTES; 1786 1787 vidtv_psi_set_sec_len(&eit->header, length); 1788 } 1789 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
Attachment:
.config.gz
Description: application/gzip
