* Re: [PATCH 2/4] mm: move per-vma lock into vm_area_struct
[not found] <20241111205506.3404479-3-surenb@google.com>
@ 2024-11-12 9:36 ` kernel test robot
2024-11-12 9:47 ` kernel test robot
2024-11-12 10:18 ` kernel test robot
2 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2024-11-12 9:36 UTC (permalink / raw)
To: Suren Baghdasaryan, akpm
Cc: llvm, oe-kbuild-all, willy, liam.howlett, lorenzo.stoakes, mhocko,
vbabka, hannes, mjguzik, oliver.sang, mgorman, david, peterx,
oleg, dave, paulmck, brauner, dhowells, hdanton, hughd, minchan,
jannh, shakeel.butt, souravpanda, pasha.tatashin, linux-mm,
linux-kernel, kernel-team, surenb
Hi Suren,
kernel test robot noticed the following build warnings:
[auto build test WARNING on 931086f2a88086319afb57cd3925607e8cda0a9f]
url: https://github.com/intel-lab-lkp/linux/commits/Suren-Baghdasaryan/mm-introduce-vma_start_read_locked-_nested-helpers/20241112-050531
base: 931086f2a88086319afb57cd3925607e8cda0a9f
patch link: https://lore.kernel.org/r/20241111205506.3404479-3-surenb%40google.com
patch subject: [PATCH 2/4] mm: move per-vma lock into vm_area_struct
config: um-defconfig (https://download.01.org/0day-ci/archive/20241112/202411121742.VK3YF84e-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 592c0fe55f6d9a811028b5f3507be91458ab2713)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241112/202411121742.VK3YF84e-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202411121742.VK3YF84e-lkp@intel.com/
All warnings (new ones prefixed by >>):
| ^
In file included from ipc/msg.c:30:
In file included from include/linux/mm.h:1143:
In file included from include/linux/huge_mm.h:7:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:255:10: warning: array index 1 is past the end of the array (that has type 'unsigned long[1]') [-Warray-bounds]
255 | case 2: set->sig[1] = -1;
| ^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
24 | unsigned long sig[_NSIG_WORDS];
| ^
In file included from ipc/msg.c:30:
In file included from include/linux/mm.h:2234:
include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
In file included from ipc/msg.c:33:
In file included from include/linux/security.h:35:
In file included from include/linux/bpf.h:31:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:8:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from arch/um/include/asm/hardirq.h:5:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:14:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
548 | val = __raw_readb(PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
561 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
| ^
In file included from ipc/msg.c:33:
In file included from include/linux/security.h:35:
In file included from include/linux/bpf.h:31:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:8:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from arch/um/include/asm/hardirq.h:5:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:14:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
574 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
| ^
In file included from ipc/msg.c:33:
In file included from include/linux/security.h:35:
In file included from include/linux/bpf.h:31:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:8:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from arch/um/include/asm/hardirq.h:5:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:14:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
585 | __raw_writeb(value, PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
595 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
605 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:693:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
693 | readsb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:701:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
701 | readsw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:709:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
709 | readsl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:718:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
718 | writesb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:727:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
727 | writesw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:736:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
736 | writesl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
>> ipc/msg.c:497:20: warning: implicit conversion from 'int' to 'unsigned short' changes value from 32768000 to 0 [-Wconstant-conversion]
497 | msginfo->msgseg = MSGSEG;
| ~ ^~~~~~
include/uapi/linux/msg.h:87:38: note: expanded from macro 'MSGSEG'
87 | #define MSGSEG (__MSGSEG <= 0xffff ? __MSGSEG : 0xffff)
| ^~~~~~~~
include/uapi/linux/msg.h:86:36: note: expanded from macro '__MSGSEG'
86 | #define __MSGSEG ((MSGPOOL * 1024) / MSGSSZ) /* max no. of segments */
| ~~~~~~~~~~~~~~~~~^~~~~~~~
63 warnings and 3 errors generated.
--
In file included from drivers/tty/tty_port.c:8:
In file included from include/linux/tty.h:11:
In file included from include/linux/tty_port.h:5:
In file included from include/linux/kfifo.h:40:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:8:
include/linux/mm.h:877:2: error: call to undeclared function 'vma_lock_init'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
877 | vma_lock_init(&vma->vm_lock);
| ^
include/linux/mm.h:877:2: note: did you mean 'osq_lock_init'?
include/linux/osq_lock.h:23:20: note: 'osq_lock_init' declared here
23 | static inline void osq_lock_init(struct optimistic_spin_queue *lock)
| ^
In file included from drivers/tty/tty_port.c:8:
In file included from include/linux/tty.h:11:
In file included from include/linux/tty_port.h:5:
In file included from include/linux/kfifo.h:40:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:8:
include/linux/mm.h:877:22: error: no member named 'vm_lock' in 'struct vm_area_struct'
877 | vma_lock_init(&vma->vm_lock);
| ~~~ ^
include/linux/mm.h:878:7: error: no member named 'vm_lock_seq' in 'struct vm_area_struct'
878 | vma->vm_lock_seq = UINT_MAX;
| ~~~ ^
In file included from drivers/tty/tty_port.c:8:
In file included from include/linux/tty.h:11:
In file included from include/linux/tty_port.h:5:
In file included from include/linux/kfifo.h:40:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:8:
In file included from include/linux/mm.h:2234:
include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
In file included from drivers/tty/tty_port.c:8:
In file included from include/linux/tty.h:11:
In file included from include/linux/tty_port.h:5:
In file included from include/linux/kfifo.h:40:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
548 | val = __raw_readb(PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
561 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
| ^
In file included from drivers/tty/tty_port.c:8:
In file included from include/linux/tty.h:11:
In file included from include/linux/tty_port.h:5:
In file included from include/linux/kfifo.h:40:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
574 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
| ^
In file included from drivers/tty/tty_port.c:8:
In file included from include/linux/tty.h:11:
In file included from include/linux/tty_port.h:5:
In file included from include/linux/kfifo.h:40:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
585 | __raw_writeb(value, PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
595 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
605 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:693:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
693 | readsb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:701:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
701 | readsw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:709:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
709 | readsl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:718:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
718 | writesb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:727:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
727 | writesw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:736:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
736 | writesl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
>> drivers/tty/tty_port.c:266:2: warning: implicit conversion from 'unsigned long' to 'unsigned int' changes value from 18446744073709551615 to 4294967295 [-Wconstant-conversion]
266 | INIT_KFIFO(port->xmit_fifo);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/kfifo.h:136:69: note: expanded from macro 'INIT_KFIFO'
136 | __kfifo->mask = __is_kfifo_ptr(__tmp) ? 0 : ARRAY_SIZE(__tmp->buf) - 1;\
| ~ ~~~~~~~~~~~~~~~~~~~~~~~^~~
14 warnings and 3 errors generated.
vim +497 ipc/msg.c
a0d092fc2df845 Pierre Peiffer 2008-04-29 476
156d9ed1260ee5 Al Viro 2017-07-09 477 static int msgctl_info(struct ipc_namespace *ns, int msqid,
156d9ed1260ee5 Al Viro 2017-07-09 478 int cmd, struct msginfo *msginfo)
a0d092fc2df845 Pierre Peiffer 2008-04-29 479 {
2cafed30f150f7 Davidlohr Bueso 2013-07-08 480 int err;
27c331a1746142 Manfred Spraul 2018-08-21 481 int max_idx;
5a06a363ef4844 Ingo Molnar 2006-07-30 482
5a06a363ef4844 Ingo Molnar 2006-07-30 483 /*
5a06a363ef4844 Ingo Molnar 2006-07-30 484 * We must not return kernel stack data.
^1da177e4c3f41 Linus Torvalds 2005-04-16 485 * due to padding, it's not enough
^1da177e4c3f41 Linus Torvalds 2005-04-16 486 * to set all member fields.
^1da177e4c3f41 Linus Torvalds 2005-04-16 487 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 488 err = security_msg_queue_msgctl(NULL, cmd);
^1da177e4c3f41 Linus Torvalds 2005-04-16 489 if (err)
^1da177e4c3f41 Linus Torvalds 2005-04-16 490 return err;
^1da177e4c3f41 Linus Torvalds 2005-04-16 491
156d9ed1260ee5 Al Viro 2017-07-09 492 memset(msginfo, 0, sizeof(*msginfo));
156d9ed1260ee5 Al Viro 2017-07-09 493 msginfo->msgmni = ns->msg_ctlmni;
156d9ed1260ee5 Al Viro 2017-07-09 494 msginfo->msgmax = ns->msg_ctlmax;
156d9ed1260ee5 Al Viro 2017-07-09 495 msginfo->msgmnb = ns->msg_ctlmnb;
156d9ed1260ee5 Al Viro 2017-07-09 496 msginfo->msgssz = MSGSSZ;
156d9ed1260ee5 Al Viro 2017-07-09 @497 msginfo->msgseg = MSGSEG;
d9a605e40b1376 Davidlohr Bueso 2013-09-11 498 down_read(&msg_ids(ns).rwsem);
72d1e611082eda Jiebin Sun 2022-09-14 499 if (cmd == MSG_INFO)
156d9ed1260ee5 Al Viro 2017-07-09 500 msginfo->msgpool = msg_ids(ns).in_use;
72d1e611082eda Jiebin Sun 2022-09-14 501 max_idx = ipc_get_maxidx(&msg_ids(ns));
72d1e611082eda Jiebin Sun 2022-09-14 502 up_read(&msg_ids(ns).rwsem);
72d1e611082eda Jiebin Sun 2022-09-14 503 if (cmd == MSG_INFO) {
72d1e611082eda Jiebin Sun 2022-09-14 504 msginfo->msgmap = min_t(int,
72d1e611082eda Jiebin Sun 2022-09-14 505 percpu_counter_sum(&ns->percpu_msg_hdrs),
72d1e611082eda Jiebin Sun 2022-09-14 506 INT_MAX);
72d1e611082eda Jiebin Sun 2022-09-14 507 msginfo->msgtql = min_t(int,
72d1e611082eda Jiebin Sun 2022-09-14 508 percpu_counter_sum(&ns->percpu_msg_bytes),
72d1e611082eda Jiebin Sun 2022-09-14 509 INT_MAX);
^1da177e4c3f41 Linus Torvalds 2005-04-16 510 } else {
156d9ed1260ee5 Al Viro 2017-07-09 511 msginfo->msgmap = MSGMAP;
156d9ed1260ee5 Al Viro 2017-07-09 512 msginfo->msgpool = MSGPOOL;
156d9ed1260ee5 Al Viro 2017-07-09 513 msginfo->msgtql = MSGTQL;
^1da177e4c3f41 Linus Torvalds 2005-04-16 514 }
27c331a1746142 Manfred Spraul 2018-08-21 515 return (max_idx < 0) ? 0 : max_idx;
^1da177e4c3f41 Linus Torvalds 2005-04-16 516 }
2cafed30f150f7 Davidlohr Bueso 2013-07-08 517
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH 2/4] mm: move per-vma lock into vm_area_struct
[not found] <20241111205506.3404479-3-surenb@google.com>
2024-11-12 9:36 ` [PATCH 2/4] mm: move per-vma lock into vm_area_struct kernel test robot
@ 2024-11-12 9:47 ` kernel test robot
2024-11-12 10:18 ` kernel test robot
2 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2024-11-12 9:47 UTC (permalink / raw)
To: Suren Baghdasaryan, akpm
Cc: llvm, oe-kbuild-all, willy, liam.howlett, lorenzo.stoakes, mhocko,
vbabka, hannes, mjguzik, oliver.sang, mgorman, david, peterx,
oleg, dave, paulmck, brauner, dhowells, hdanton, hughd, minchan,
jannh, shakeel.butt, souravpanda, pasha.tatashin, linux-mm,
linux-kernel, kernel-team, surenb
Hi Suren,
kernel test robot noticed the following build errors:
[auto build test ERROR on 931086f2a88086319afb57cd3925607e8cda0a9f]
url: https://github.com/intel-lab-lkp/linux/commits/Suren-Baghdasaryan/mm-introduce-vma_start_read_locked-_nested-helpers/20241112-050531
base: 931086f2a88086319afb57cd3925607e8cda0a9f
patch link: https://lore.kernel.org/r/20241111205506.3404479-3-surenb%40google.com
patch subject: [PATCH 2/4] mm: move per-vma lock into vm_area_struct
config: um-x86_64_defconfig (https://download.01.org/0day-ci/archive/20241112/202411121745.VmaDStMg-lkp@intel.com/config)
compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241112/202411121745.VmaDStMg-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202411121745.VmaDStMg-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from ipc/util.c:47:
>> include/linux/mm.h:877:2: error: call to undeclared function 'vma_lock_init'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
vma_lock_init(&vma->vm_lock);
^
include/linux/mm.h:877:2: note: did you mean 'osq_lock_init'?
include/linux/osq_lock.h:23:20: note: 'osq_lock_init' declared here
static inline void osq_lock_init(struct optimistic_spin_queue *lock)
^
In file included from ipc/util.c:47:
include/linux/mm.h:877:22: error: no member named 'vm_lock' in 'struct vm_area_struct'
vma_lock_init(&vma->vm_lock);
~~~ ^
include/linux/mm.h:878:7: error: no member named 'vm_lock_seq' in 'struct vm_area_struct'
vma->vm_lock_seq = UINT_MAX;
~~~ ^
In file included from ipc/util.c:47:
In file included from include/linux/mm.h:1143:
In file included from include/linux/huge_mm.h:7:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:98:11: warning: array index 3 is past the end of the array (which contains 1 element) [-Warray-bounds]
return (set->sig[3] | set->sig[2] |
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from ipc/util.c:47:
In file included from include/linux/mm.h:1143:
In file included from include/linux/huge_mm.h:7:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:98:25: warning: array index 2 is past the end of the array (which contains 1 element) [-Warray-bounds]
return (set->sig[3] | set->sig[2] |
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from ipc/util.c:47:
In file included from include/linux/mm.h:1143:
In file included from include/linux/huge_mm.h:7:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:99:4: warning: array index 1 is past the end of the array (which contains 1 element) [-Warray-bounds]
set->sig[1] | set->sig[0]) == 0;
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from ipc/util.c:47:
In file included from include/linux/mm.h:1143:
In file included from include/linux/huge_mm.h:7:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:101:11: warning: array index 1 is past the end of the array (which contains 1 element) [-Warray-bounds]
return (set->sig[1] | set->sig[0]) == 0;
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from ipc/util.c:47:
In file included from include/linux/mm.h:1143:
In file included from include/linux/huge_mm.h:7:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:114:11: warning: array index 3 is past the end of the array (which contains 1 element) [-Warray-bounds]
return (set1->sig[3] == set2->sig[3]) &&
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from ipc/util.c:47:
In file included from include/linux/mm.h:1143:
In file included from include/linux/huge_mm.h:7:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:114:27: warning: array index 3 is past the end of the array (which contains 1 element) [-Warray-bounds]
return (set1->sig[3] == set2->sig[3]) &&
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from ipc/util.c:47:
In file included from include/linux/mm.h:1143:
In file included from include/linux/huge_mm.h:7:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:115:5: warning: array index 2 is past the end of the array (which contains 1 element) [-Warray-bounds]
(set1->sig[2] == set2->sig[2]) &&
--
In file included from ipc/msgutil.c:9:
In file included from include/linux/security.h:33:
>> include/linux/mm.h:877:2: error: call to undeclared function 'vma_lock_init'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
vma_lock_init(&vma->vm_lock);
^
include/linux/mm.h:877:2: note: did you mean 'osq_lock_init'?
include/linux/osq_lock.h:23:20: note: 'osq_lock_init' declared here
static inline void osq_lock_init(struct optimistic_spin_queue *lock)
^
In file included from ipc/msgutil.c:9:
In file included from include/linux/security.h:33:
include/linux/mm.h:877:22: error: no member named 'vm_lock' in 'struct vm_area_struct'
vma_lock_init(&vma->vm_lock);
~~~ ^
include/linux/mm.h:878:7: error: no member named 'vm_lock_seq' in 'struct vm_area_struct'
vma->vm_lock_seq = UINT_MAX;
~~~ ^
In file included from ipc/msgutil.c:9:
In file included from include/linux/security.h:35:
In file included from include/linux/bpf.h:31:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:8:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from arch/um/include/asm/hardirq.h:5:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:14:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
^
In file included from ipc/msgutil.c:9:
In file included from include/linux/security.h:35:
In file included from include/linux/bpf.h:31:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:8:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from arch/um/include/asm/hardirq.h:5:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:14:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from ipc/msgutil.c:9:
In file included from include/linux/security.h:35:
In file included from include/linux/bpf.h:31:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:8:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from arch/um/include/asm/hardirq.h:5:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:14:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:693:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:701:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:709:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:718:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:727:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:736:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
12 warnings and 3 errors generated.
--
In file included from ipc/msg.c:30:
>> include/linux/mm.h:877:2: error: call to undeclared function 'vma_lock_init'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
vma_lock_init(&vma->vm_lock);
^
include/linux/mm.h:877:2: note: did you mean 'osq_lock_init'?
include/linux/osq_lock.h:23:20: note: 'osq_lock_init' declared here
static inline void osq_lock_init(struct optimistic_spin_queue *lock)
^
In file included from ipc/msg.c:30:
include/linux/mm.h:877:22: error: no member named 'vm_lock' in 'struct vm_area_struct'
vma_lock_init(&vma->vm_lock);
~~~ ^
include/linux/mm.h:878:7: error: no member named 'vm_lock_seq' in 'struct vm_area_struct'
vma->vm_lock_seq = UINT_MAX;
~~~ ^
In file included from ipc/msg.c:30:
In file included from include/linux/mm.h:1143:
In file included from include/linux/huge_mm.h:7:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:98:11: warning: array index 3 is past the end of the array (which contains 1 element) [-Warray-bounds]
return (set->sig[3] | set->sig[2] |
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from ipc/msg.c:30:
In file included from include/linux/mm.h:1143:
In file included from include/linux/huge_mm.h:7:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:98:25: warning: array index 2 is past the end of the array (which contains 1 element) [-Warray-bounds]
return (set->sig[3] | set->sig[2] |
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from ipc/msg.c:30:
In file included from include/linux/mm.h:1143:
In file included from include/linux/huge_mm.h:7:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:99:4: warning: array index 1 is past the end of the array (which contains 1 element) [-Warray-bounds]
set->sig[1] | set->sig[0]) == 0;
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from ipc/msg.c:30:
In file included from include/linux/mm.h:1143:
In file included from include/linux/huge_mm.h:7:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:101:11: warning: array index 1 is past the end of the array (which contains 1 element) [-Warray-bounds]
return (set->sig[1] | set->sig[0]) == 0;
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from ipc/msg.c:30:
In file included from include/linux/mm.h:1143:
In file included from include/linux/huge_mm.h:7:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:114:11: warning: array index 3 is past the end of the array (which contains 1 element) [-Warray-bounds]
return (set1->sig[3] == set2->sig[3]) &&
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from ipc/msg.c:30:
In file included from include/linux/mm.h:1143:
In file included from include/linux/huge_mm.h:7:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:114:27: warning: array index 3 is past the end of the array (which contains 1 element) [-Warray-bounds]
return (set1->sig[3] == set2->sig[3]) &&
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from ipc/msg.c:30:
In file included from include/linux/mm.h:1143:
In file included from include/linux/huge_mm.h:7:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:115:5: warning: array index 2 is past the end of the array (which contains 1 element) [-Warray-bounds]
(set1->sig[2] == set2->sig[2]) &&
..
vim +/vma_lock_init +877 include/linux/mm.h
868
869 static inline void vma_init(struct vm_area_struct *vma, struct mm_struct *mm)
870 {
871 memset(vma, 0, sizeof(*vma));
872 vma->vm_mm = mm;
873 vma->vm_ops = &vma_dummy_vm_ops;
874 INIT_LIST_HEAD(&vma->anon_vma_chain);
875 vma_mark_detached(vma, false);
876 vma_numab_state_init(vma);
> 877 vma_lock_init(&vma->vm_lock);
878 vma->vm_lock_seq = UINT_MAX;
879 }
880
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH 2/4] mm: move per-vma lock into vm_area_struct
[not found] <20241111205506.3404479-3-surenb@google.com>
2024-11-12 9:36 ` [PATCH 2/4] mm: move per-vma lock into vm_area_struct kernel test robot
2024-11-12 9:47 ` kernel test robot
@ 2024-11-12 10:18 ` kernel test robot
2 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2024-11-12 10:18 UTC (permalink / raw)
To: Suren Baghdasaryan, akpm
Cc: llvm, oe-kbuild-all, willy, liam.howlett, lorenzo.stoakes, mhocko,
vbabka, hannes, mjguzik, oliver.sang, mgorman, david, peterx,
oleg, dave, paulmck, brauner, dhowells, hdanton, hughd, minchan,
jannh, shakeel.butt, souravpanda, pasha.tatashin, linux-mm,
linux-kernel, kernel-team, surenb
Hi Suren,
kernel test robot noticed the following build warnings:
[auto build test WARNING on 931086f2a88086319afb57cd3925607e8cda0a9f]
url: https://github.com/intel-lab-lkp/linux/commits/Suren-Baghdasaryan/mm-introduce-vma_start_read_locked-_nested-helpers/20241112-050531
base: 931086f2a88086319afb57cd3925607e8cda0a9f
patch link: https://lore.kernel.org/r/20241111205506.3404479-3-surenb%40google.com
patch subject: [PATCH 2/4] mm: move per-vma lock into vm_area_struct
config: hexagon-randconfig-002-20241112 (https://download.01.org/0day-ci/archive/20241112/202411121840.hE2wZKgE-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 592c0fe55f6d9a811028b5f3507be91458ab2713)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241112/202411121840.hE2wZKgE-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202411121840.hE2wZKgE-lkp@intel.com/
All warnings (new ones prefixed by >>):
| ^
include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here
62 | unsigned long sig[_NSIG_WORDS];
| ^
In file included from kernel/dma/direct.c:7:
In file included from include/linux/memblock.h:12:
In file included from include/linux/mm.h:1143:
In file included from include/linux/huge_mm.h:7:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:187:1: warning: array index 3 is past the end of the array (that has type 'unsigned long[2]') [-Warray-bounds]
187 | _SIG_SET_OP(signotset, _sig_not)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/signal.h:174:10: note: expanded from macro '_SIG_SET_OP'
174 | case 4: set->sig[3] = op(set->sig[3]); \
| ^ ~
include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here
62 | unsigned long sig[_NSIG_WORDS];
| ^
In file included from kernel/dma/direct.c:7:
In file included from include/linux/memblock.h:12:
In file included from include/linux/mm.h:1143:
In file included from include/linux/huge_mm.h:7:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:187:1: warning: array index 2 is past the end of the array (that has type 'unsigned long[2]') [-Warray-bounds]
187 | _SIG_SET_OP(signotset, _sig_not)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/signal.h:175:20: note: expanded from macro '_SIG_SET_OP'
175 | set->sig[2] = op(set->sig[2]); \
| ^ ~
include/linux/signal.h:186:24: note: expanded from macro '_sig_not'
186 | #define _sig_not(x) (~(x))
| ^
include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here
62 | unsigned long sig[_NSIG_WORDS];
| ^
In file included from kernel/dma/direct.c:7:
In file included from include/linux/memblock.h:12:
In file included from include/linux/mm.h:1143:
In file included from include/linux/huge_mm.h:7:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:187:1: warning: array index 2 is past the end of the array (that has type 'unsigned long[2]') [-Warray-bounds]
187 | _SIG_SET_OP(signotset, _sig_not)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/signal.h:175:3: note: expanded from macro '_SIG_SET_OP'
175 | set->sig[2] = op(set->sig[2]); \
| ^ ~
include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here
62 | unsigned long sig[_NSIG_WORDS];
| ^
In file included from kernel/dma/direct.c:7:
In file included from include/linux/memblock.h:12:
In file included from include/linux/mm.h:2234:
include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
In file included from kernel/dma/direct.c:7:
In file included from include/linux/memblock.h:13:
In file included from arch/hexagon/include/asm/dma.h:9:
In file included from arch/hexagon/include/asm/io.h:328:
include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
548 | val = __raw_readb(PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
561 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
| ^
In file included from kernel/dma/direct.c:7:
In file included from include/linux/memblock.h:13:
In file included from arch/hexagon/include/asm/dma.h:9:
In file included from arch/hexagon/include/asm/io.h:328:
include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
574 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
| ^
In file included from kernel/dma/direct.c:7:
In file included from include/linux/memblock.h:13:
In file included from arch/hexagon/include/asm/dma.h:9:
In file included from arch/hexagon/include/asm/io.h:328:
include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
585 | __raw_writeb(value, PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
595 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
605 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
>> kernel/dma/direct.c:147:20: warning: shift count >= width of type [-Wshift-count-overflow]
146 | if (IS_ENABLED(CONFIG_ZONE_DMA32) &&
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
147 | phys_limit < DMA_BIT_MASK(64) &&
| ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
148 | !(gfp & (GFP_DMA32 | GFP_DMA))) {
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/dma-mapping.h:77:54: note: expanded from macro 'DMA_BIT_MASK'
77 | #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
| ^
include/linux/compiler.h:55:47: note: expanded from macro 'if'
55 | #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
| ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler.h:57:52: note: expanded from macro '__trace_if_var'
57 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
| ^~~~
>> kernel/dma/direct.c:147:20: warning: shift count >= width of type [-Wshift-count-overflow]
146 | if (IS_ENABLED(CONFIG_ZONE_DMA32) &&
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
147 | phys_limit < DMA_BIT_MASK(64) &&
| ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
148 | !(gfp & (GFP_DMA32 | GFP_DMA))) {
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/dma-mapping.h:77:54: note: expanded from macro 'DMA_BIT_MASK'
77 | #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
| ^
include/linux/compiler.h:55:47: note: expanded from macro 'if'
55 | #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
| ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler.h:57:61: note: expanded from macro '__trace_if_var'
57 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
| ^~~~
>> kernel/dma/direct.c:147:20: warning: shift count >= width of type [-Wshift-count-overflow]
146 | if (IS_ENABLED(CONFIG_ZONE_DMA32) &&
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
147 | phys_limit < DMA_BIT_MASK(64) &&
| ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
148 | !(gfp & (GFP_DMA32 | GFP_DMA))) {
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/dma-mapping.h:77:54: note: expanded from macro 'DMA_BIT_MASK'
77 | #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
| ^
include/linux/compiler.h:55:47: note: expanded from macro 'if'
55 | #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
| ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler.h:57:86: note: expanded from macro '__trace_if_var'
57 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
| ~~~~~~~~~~~~~~~~~^~~~~
include/linux/compiler.h:68:3: note: expanded from macro '__trace_if_value'
68 | (cond) ? \
| ^~~~
38 warnings and 3 errors generated.
--
In file included from drivers/iio/adc/fsl-imx25-gcq.c:12:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:14:
In file included from arch/hexagon/include/asm/io.h:328:
include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
548 | val = __raw_readb(PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
561 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
| ^
In file included from drivers/iio/adc/fsl-imx25-gcq.c:12:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:14:
In file included from arch/hexagon/include/asm/io.h:328:
include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
574 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
| ^
In file included from drivers/iio/adc/fsl-imx25-gcq.c:12:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:14:
In file included from arch/hexagon/include/asm/io.h:328:
include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
585 | __raw_writeb(value, PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
595 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
605 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
In file included from drivers/iio/adc/fsl-imx25-gcq.c:19:
In file included from include/linux/regulator/consumer.h:35:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:21:
include/linux/mm.h:877:2: error: call to undeclared function 'vma_lock_init'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
877 | vma_lock_init(&vma->vm_lock);
| ^
include/linux/mm.h:877:2: note: did you mean 'osq_lock_init'?
include/linux/osq_lock.h:23:20: note: 'osq_lock_init' declared here
23 | static inline void osq_lock_init(struct optimistic_spin_queue *lock)
| ^
In file included from drivers/iio/adc/fsl-imx25-gcq.c:19:
In file included from include/linux/regulator/consumer.h:35:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:21:
include/linux/mm.h:877:22: error: no member named 'vm_lock' in 'struct vm_area_struct'
877 | vma_lock_init(&vma->vm_lock);
| ~~~ ^
include/linux/mm.h:878:7: error: no member named 'vm_lock_seq' in 'struct vm_area_struct'
878 | vma->vm_lock_seq = UINT_MAX;
| ~~~ ^
In file included from drivers/iio/adc/fsl-imx25-gcq.c:19:
In file included from include/linux/regulator/consumer.h:35:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:21:
In file included from include/linux/mm.h:2234:
include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
>> drivers/iio/adc/fsl-imx25-gcq.c:116:8: warning: shift count is negative [-Wshift-count-negative]
116 | MX25_ADCQ_ITEM(0, chan->channel));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/mfd/imx25-tsadc.h:54:3: note: expanded from macro 'MX25_ADCQ_ITEM'
54 | _MX25_ADCQ_ITEM((item) - 8, (x)) : _MX25_ADCQ_ITEM((item), (x)))
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/mfd/imx25-tsadc.h:52:39: note: expanded from macro '_MX25_ADCQ_ITEM'
52 | #define _MX25_ADCQ_ITEM(item, x) ((x) << ((item) * 4))
| ^ ~~~~~~~~~~~~
8 warnings and 3 errors generated.
vim +147 kernel/dma/direct.c
aea7e2a86a94b25 kernel/dma/direct.c Christoph Hellwig 2021-10-21 117
26749b3201ab05e kernel/dma/direct.c Christoph Hellwig 2020-06-15 118 static struct page *__dma_direct_alloc_pages(struct device *dev, size_t size,
92826e967535db2 kernel/dma/direct.c Christoph Hellwig 2022-04-23 119 gfp_t gfp, bool allow_highmem)
a8463d4b0e47d1f lib/dma-noop.c Christian Borntraeger 2016-02-02 120 {
90ae409f9eb3bca kernel/dma/direct.c Christoph Hellwig 2019-08-20 121 int node = dev_to_node(dev);
080321d3b3139b3 lib/dma-direct.c Christoph Hellwig 2017-12-22 122 struct page *page = NULL;
a7ba70f1787f977 kernel/dma/direct.c Nicolas Saenz Julienne 2019-11-21 123 u64 phys_limit;
a8463d4b0e47d1f lib/dma-noop.c Christian Borntraeger 2016-02-02 124
633d5fce78a61e8 kernel/dma/direct.c David Rientjes 2020-06-11 125 WARN_ON_ONCE(!PAGE_ALIGNED(size));
633d5fce78a61e8 kernel/dma/direct.c David Rientjes 2020-06-11 126
aea7e2a86a94b25 kernel/dma/direct.c Christoph Hellwig 2021-10-21 127 if (is_swiotlb_for_alloc(dev))
aea7e2a86a94b25 kernel/dma/direct.c Christoph Hellwig 2021-10-21 128 return dma_direct_alloc_swiotlb(dev, size);
aea7e2a86a94b25 kernel/dma/direct.c Christoph Hellwig 2021-10-21 129
25a4ce564921db0 kernel/dma/direct.c Petr Tesarik 2023-02-20 130 gfp |= dma_direct_optimal_gfp_mask(dev, &phys_limit);
633d5fce78a61e8 kernel/dma/direct.c David Rientjes 2020-06-11 131 page = dma_alloc_contiguous(dev, size, gfp);
92826e967535db2 kernel/dma/direct.c Christoph Hellwig 2022-04-23 132 if (page) {
92826e967535db2 kernel/dma/direct.c Christoph Hellwig 2022-04-23 133 if (!dma_coherent_ok(dev, page_to_phys(page), size) ||
92826e967535db2 kernel/dma/direct.c Christoph Hellwig 2022-04-23 134 (!allow_highmem && PageHighMem(page))) {
633d5fce78a61e8 kernel/dma/direct.c David Rientjes 2020-06-11 135 dma_free_contiguous(dev, page, size);
90ae409f9eb3bca kernel/dma/direct.c Christoph Hellwig 2019-08-20 136 page = NULL;
90ae409f9eb3bca kernel/dma/direct.c Christoph Hellwig 2019-08-20 137 }
92826e967535db2 kernel/dma/direct.c Christoph Hellwig 2022-04-23 138 }
95f183916d4b0bc lib/dma-direct.c Christoph Hellwig 2018-01-09 139 again:
90ae409f9eb3bca kernel/dma/direct.c Christoph Hellwig 2019-08-20 140 if (!page)
633d5fce78a61e8 kernel/dma/direct.c David Rientjes 2020-06-11 141 page = alloc_pages_node(node, gfp, get_order(size));
95f183916d4b0bc lib/dma-direct.c Christoph Hellwig 2018-01-09 142 if (page && !dma_coherent_ok(dev, page_to_phys(page), size)) {
f689a3ab7b8ece9 kernel/dma/direct.c Chen Yu 2024-08-31 143 __free_pages(page, get_order(size));
95f183916d4b0bc lib/dma-direct.c Christoph Hellwig 2018-01-09 144 page = NULL;
95f183916d4b0bc lib/dma-direct.c Christoph Hellwig 2018-01-09 145
de7eab301de7886 lib/dma-direct.c Takashi Iwai 2018-04-16 146 if (IS_ENABLED(CONFIG_ZONE_DMA32) &&
a7ba70f1787f977 kernel/dma/direct.c Nicolas Saenz Julienne 2019-11-21 @147 phys_limit < DMA_BIT_MASK(64) &&
de7eab301de7886 lib/dma-direct.c Takashi Iwai 2018-04-16 148 !(gfp & (GFP_DMA32 | GFP_DMA))) {
de7eab301de7886 lib/dma-direct.c Takashi Iwai 2018-04-16 149 gfp |= GFP_DMA32;
de7eab301de7886 lib/dma-direct.c Takashi Iwai 2018-04-16 150 goto again;
de7eab301de7886 lib/dma-direct.c Takashi Iwai 2018-04-16 151 }
de7eab301de7886 lib/dma-direct.c Takashi Iwai 2018-04-16 152
fbce251baa6e357 kernel/dma/direct.c Christoph Hellwig 2019-02-13 153 if (IS_ENABLED(CONFIG_ZONE_DMA) && !(gfp & GFP_DMA)) {
95f183916d4b0bc lib/dma-direct.c Christoph Hellwig 2018-01-09 154 gfp = (gfp & ~GFP_DMA32) | GFP_DMA;
95f183916d4b0bc lib/dma-direct.c Christoph Hellwig 2018-01-09 155 goto again;
95f183916d4b0bc lib/dma-direct.c Christoph Hellwig 2018-01-09 156 }
95f183916d4b0bc lib/dma-direct.c Christoph Hellwig 2018-01-09 157 }
95f183916d4b0bc lib/dma-direct.c Christoph Hellwig 2018-01-09 158
b18814e767a4455 kernel/dma/direct.c Christoph Hellwig 2018-11-04 159 return page;
b18814e767a4455 kernel/dma/direct.c Christoph Hellwig 2018-11-04 160 }
b18814e767a4455 kernel/dma/direct.c Christoph Hellwig 2018-11-04 161
--
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https://github.com/intel/lkp-tests/wiki
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