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Author SHA1 Message Date
Paolo Abeni
f49a372361 Merge branch 'bug-fixes-from-xdp-and-perout-series'
Meghana Malladi says:

====================
Bug fixes from XDP and perout series

This patch series consists of bug fixes from the XDP series:
1. Fixes a kernel warning that occurs when bringing down the
   network interface.
2. Resolves a potential NULL pointer dereference in the
   emac_xmit_xdp_frame() function.
3. Resolves a potential NULL pointer dereference in the
   icss_iep_perout_enable() function

v3: https://lore.kernel.org/all/20250328102403.2626974-1-m-malladi@ti.com/
====================

Link: https://patch.msgid.link/20250415090543.717991-1-m-malladi@ti.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-04-17 12:11:26 +02:00
Meghana Malladi
7349c9e997 net: ti: icss-iep: Fix possible NULL pointer dereference for perout request
The ICSS IEP driver tracks perout and pps enable state with flags.
Currently when disabling pps and perout signals during icss_iep_exit(),
results in NULL pointer dereference for perout.

To fix the null pointer dereference issue, the icss_iep_perout_enable_hw
function can be modified to directly clear the IEP CMP registers when
disabling PPS or PEROUT, without referencing the ptp_perout_request
structure, as its contents are irrelevant in this case.

Fixes: 9b11536124 ("net: ti: icssg-prueth: Fix clearing of IEP_CMP_CFG registers during iep_init")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/7b1c7c36-363a-4085-b26c-4f210bee1df6@stanley.mountain/
Signed-off-by: Meghana Malladi <m-malladi@ti.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20250415090543.717991-4-m-malladi@ti.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-04-17 12:11:24 +02:00
Meghana Malladi
8ed2fa6613 net: ti: icssg-prueth: Fix possible NULL pointer dereference inside emac_xmit_xdp_frame()
There is an error check inside emac_xmit_xdp_frame() function which
is called when the driver wants to transmit XDP frame, to check if
the allocated tx descriptor is NULL, if true to exit and return
ICSSG_XDP_CONSUMED implying failure in transmission.

In this case trying to free a descriptor which is NULL will result
in kernel crash due to NULL pointer dereference. Fix this error handling
and increase netdev tx_dropped stats in the caller of this function
if the function returns ICSSG_XDP_CONSUMED.

Fixes: 62aa3246f4 ("net: ti: icssg-prueth: Add XDP support")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/70d8dd76-0c76-42fc-8611-9884937c82f5@stanley.mountain/
Signed-off-by: Meghana Malladi <m-malladi@ti.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20250415090543.717991-3-m-malladi@ti.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-04-17 12:11:24 +02:00
Meghana Malladi
75bc744466 net: ti: icssg-prueth: Fix kernel warning while bringing down network interface
During network interface initialization, the NIC driver needs to register
its Rx queue with the XDP, to ensure the incoming XDP buffer carries a
pointer reference to this info and is stored inside xdp_rxq_info.

While this struct isn't tied to XDP prog, if there are any changes in
Rx queue, the NIC driver needs to stop the Rx queue by unregistering
with XDP before purging and reallocating memory. Drop page_pool destroy
during Rx channel reset as this is already handled by XDP during
xdp_rxq_info_unreg (Rx queue unregister), failing to do will cause the
following warning:

warning logs: https://gist.github.com/MeghanaMalladiTI/eb627e5dc8de24e42d7d46572c13e576

Fixes: 46eeb90f03 ("net: ti: icssg-prueth: Use page_pool API for RX buffer allocation")
Signed-off-by: Meghana Malladi <m-malladi@ti.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20250415090543.717991-2-m-malladi@ti.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-04-17 12:11:24 +02:00
Nathan Chancellor
498cb872a1 x86/boot/startup: Disable LTO for the startup code
When building with CONFIG_LTO_CLANG, there is an error in the x86 boot
startup code because it builds with a different code model than the rest
of the kernel:

  ld.lld: error: Function Import: link error: linking module flags 'Code Model': IDs have conflicting values: 'i32 2' from vmlinux.a(head64.o at 1302448), and 'i32 1' from vmlinux.a(map_kernel.o at 1314208)
  ld.lld: error: Function Import: link error: linking module flags 'Code Model': IDs have conflicting values: 'i32 2' from vmlinux.a(common.o at 1306108), and 'i32 1' from vmlinux.a(gdt_idt.o at 1314148)

As this directory is for code that only runs during early system
initialization, LTO is not very important, so filter out the LTO flags
from KBUILD_CFLAGS for arch/x86/boot/startup to resolve the build error.

Fixes: 4cecebf200 ("x86/boot: Move the early GDT/IDT setup code into startup/")
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: llvm@lists.linux.dev
Link: https://lore.kernel.org/r/20250414-x86-boot-startup-lto-error-v1-1-7c8bed7c131c@kernel.org

Closes: https://lore.kernel.org/CA+G9fYvnun+bhYgtt425LWxzOmj+8Jf3ruKeYxQSx-F6U7aisg@mail.gmail.com/
2025-04-17 12:09:30 +02:00
Naohiro Aota
866bafae59 btrfs: zoned: skip reporting zone for new block group
There is a potential deadlock if we do report zones in an IO context, detailed
in below lockdep report. When one process do a report zones and another process
freezes the block device, the report zones side cannot allocate a tag because
the freeze is already started. This can thus result in new block group creation
to hang forever, blocking the write path.

Thankfully, a new block group should be created on empty zones. So, reporting
the zones is not necessary and we can set the write pointer = 0 and load the
zone capacity from the block layer using bdev_zone_capacity() helper.

 ======================================================
 WARNING: possible circular locking dependency detected
 6.14.0-rc1 #252 Not tainted
 ------------------------------------------------------
 modprobe/1110 is trying to acquire lock:
 ffff888100ac83e0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: __flush_work+0x38f/0xb60

 but task is already holding lock:
 ffff8881205b6f20 (&q->q_usage_counter(queue)#16){++++}-{0:0}, at: sd_remove+0x85/0x130

 which lock already depends on the new lock.

 the existing dependency chain (in reverse order) is:

 -> #3 (&q->q_usage_counter(queue)#16){++++}-{0:0}:
        blk_queue_enter+0x3d9/0x500
        blk_mq_alloc_request+0x47d/0x8e0
        scsi_execute_cmd+0x14f/0xb80
        sd_zbc_do_report_zones+0x1c1/0x470
        sd_zbc_report_zones+0x362/0xd60
        blkdev_report_zones+0x1b1/0x2e0
        btrfs_get_dev_zones+0x215/0x7e0 [btrfs]
        btrfs_load_block_group_zone_info+0x6d2/0x2c10 [btrfs]
        btrfs_make_block_group+0x36b/0x870 [btrfs]
        btrfs_create_chunk+0x147d/0x2320 [btrfs]
        btrfs_chunk_alloc+0x2ce/0xcf0 [btrfs]
        start_transaction+0xce6/0x1620 [btrfs]
        btrfs_uuid_scan_kthread+0x4ee/0x5b0 [btrfs]
        kthread+0x39d/0x750
        ret_from_fork+0x30/0x70
        ret_from_fork_asm+0x1a/0x30

 -> #2 (&fs_info->dev_replace.rwsem){++++}-{4:4}:
        down_read+0x9b/0x470
        btrfs_map_block+0x2ce/0x2ce0 [btrfs]
        btrfs_submit_chunk+0x2d4/0x16c0 [btrfs]
        btrfs_submit_bbio+0x16/0x30 [btrfs]
        btree_write_cache_pages+0xb5a/0xf90 [btrfs]
        do_writepages+0x17f/0x7b0
        __writeback_single_inode+0x114/0xb00
        writeback_sb_inodes+0x52b/0xe00
        wb_writeback+0x1a7/0x800
        wb_workfn+0x12a/0xbd0
        process_one_work+0x85a/0x1460
        worker_thread+0x5e2/0xfc0
        kthread+0x39d/0x750
        ret_from_fork+0x30/0x70
        ret_from_fork_asm+0x1a/0x30

 -> #1 (&fs_info->zoned_meta_io_lock){+.+.}-{4:4}:
        __mutex_lock+0x1aa/0x1360
        btree_write_cache_pages+0x252/0xf90 [btrfs]
        do_writepages+0x17f/0x7b0
        __writeback_single_inode+0x114/0xb00
        writeback_sb_inodes+0x52b/0xe00
        wb_writeback+0x1a7/0x800
        wb_workfn+0x12a/0xbd0
        process_one_work+0x85a/0x1460
        worker_thread+0x5e2/0xfc0
        kthread+0x39d/0x750
        ret_from_fork+0x30/0x70
        ret_from_fork_asm+0x1a/0x30

 -> #0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}:
        __lock_acquire+0x2f52/0x5ea0
        lock_acquire+0x1b1/0x540
        __flush_work+0x3ac/0xb60
        wb_shutdown+0x15b/0x1f0
        bdi_unregister+0x172/0x5b0
        del_gendisk+0x841/0xa20
        sd_remove+0x85/0x130
        device_release_driver_internal+0x368/0x520
        bus_remove_device+0x1f1/0x3f0
        device_del+0x3bd/0x9c0
        __scsi_remove_device+0x272/0x340
        scsi_forget_host+0xf7/0x170
        scsi_remove_host+0xd2/0x2a0
        sdebug_driver_remove+0x52/0x2f0 [scsi_debug]
        device_release_driver_internal+0x368/0x520
        bus_remove_device+0x1f1/0x3f0
        device_del+0x3bd/0x9c0
        device_unregister+0x13/0xa0
        sdebug_do_remove_host+0x1fb/0x290 [scsi_debug]
        scsi_debug_exit+0x17/0x70 [scsi_debug]
        __do_sys_delete_module.isra.0+0x321/0x520
        do_syscall_64+0x93/0x180
        entry_SYSCALL_64_after_hwframe+0x76/0x7e

 other info that might help us debug this:

 Chain exists of:
   (work_completion)(&(&wb->dwork)->work) --> &fs_info->dev_replace.rwsem --> &q->q_usage_counter(queue)#16

  Possible unsafe locking scenario:

        CPU0                    CPU1
        ----                    ----
   lock(&q->q_usage_counter(queue)#16);
                                lock(&fs_info->dev_replace.rwsem);
                                lock(&q->q_usage_counter(queue)#16);
   lock((work_completion)(&(&wb->dwork)->work));

  *** DEADLOCK ***

 5 locks held by modprobe/1110:
  #0: ffff88811f7bc108 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0x8f/0x520
  #1: ffff8881022ee0e0 (&shost->scan_mutex){+.+.}-{4:4}, at: scsi_remove_host+0x20/0x2a0
  #2: ffff88811b4c4378 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0x8f/0x520
  #3: ffff8881205b6f20 (&q->q_usage_counter(queue)#16){++++}-{0:0}, at: sd_remove+0x85/0x130
  #4: ffffffffa3284360 (rcu_read_lock){....}-{1:3}, at: __flush_work+0xda/0xb60

 stack backtrace:
 CPU: 0 UID: 0 PID: 1110 Comm: modprobe Not tainted 6.14.0-rc1 #252
 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-3.fc41 04/01/2014
 Call Trace:
  <TASK>
  dump_stack_lvl+0x6a/0x90
  print_circular_bug.cold+0x1e0/0x274
  check_noncircular+0x306/0x3f0
  ? __pfx_check_noncircular+0x10/0x10
  ? mark_lock+0xf5/0x1650
  ? __pfx_check_irq_usage+0x10/0x10
  ? lockdep_lock+0xca/0x1c0
  ? __pfx_lockdep_lock+0x10/0x10
  __lock_acquire+0x2f52/0x5ea0
  ? __pfx___lock_acquire+0x10/0x10
  ? __pfx_mark_lock+0x10/0x10
  lock_acquire+0x1b1/0x540
  ? __flush_work+0x38f/0xb60
  ? __pfx_lock_acquire+0x10/0x10
  ? __pfx_lock_release+0x10/0x10
  ? mark_held_locks+0x94/0xe0
  ? __flush_work+0x38f/0xb60
  __flush_work+0x3ac/0xb60
  ? __flush_work+0x38f/0xb60
  ? __pfx_mark_lock+0x10/0x10
  ? __pfx___flush_work+0x10/0x10
  ? __pfx_wq_barrier_func+0x10/0x10
  ? __pfx___might_resched+0x10/0x10
  ? mark_held_locks+0x94/0xe0
  wb_shutdown+0x15b/0x1f0
  bdi_unregister+0x172/0x5b0
  ? __pfx_bdi_unregister+0x10/0x10
  ? up_write+0x1ba/0x510
  del_gendisk+0x841/0xa20
  ? __pfx_del_gendisk+0x10/0x10
  ? _raw_spin_unlock_irqrestore+0x35/0x60
  ? __pm_runtime_resume+0x79/0x110
  sd_remove+0x85/0x130
  device_release_driver_internal+0x368/0x520
  ? kobject_put+0x5d/0x4a0
  bus_remove_device+0x1f1/0x3f0
  device_del+0x3bd/0x9c0
  ? __pfx_device_del+0x10/0x10
  __scsi_remove_device+0x272/0x340
  scsi_forget_host+0xf7/0x170
  scsi_remove_host+0xd2/0x2a0
  sdebug_driver_remove+0x52/0x2f0 [scsi_debug]
  ? kernfs_remove_by_name_ns+0xc0/0xf0
  device_release_driver_internal+0x368/0x520
  ? kobject_put+0x5d/0x4a0
  bus_remove_device+0x1f1/0x3f0
  device_del+0x3bd/0x9c0
  ? __pfx_device_del+0x10/0x10
  ? __pfx___mutex_unlock_slowpath+0x10/0x10
  device_unregister+0x13/0xa0
  sdebug_do_remove_host+0x1fb/0x290 [scsi_debug]
  scsi_debug_exit+0x17/0x70 [scsi_debug]
  __do_sys_delete_module.isra.0+0x321/0x520
  ? __pfx___do_sys_delete_module.isra.0+0x10/0x10
  ? __pfx_slab_free_after_rcu_debug+0x10/0x10
  ? kasan_save_stack+0x2c/0x50
  ? kasan_record_aux_stack+0xa3/0xb0
  ? __call_rcu_common.constprop.0+0xc4/0xfb0
  ? kmem_cache_free+0x3a0/0x590
  ? __x64_sys_close+0x78/0xd0
  do_syscall_64+0x93/0x180
  ? lock_is_held_type+0xd5/0x130
  ? __call_rcu_common.constprop.0+0x3c0/0xfb0
  ? lockdep_hardirqs_on+0x78/0x100
  ? __call_rcu_common.constprop.0+0x3c0/0xfb0
  ? __pfx___call_rcu_common.constprop.0+0x10/0x10
  ? kmem_cache_free+0x3a0/0x590
  ? lockdep_hardirqs_on_prepare+0x16d/0x400
  ? do_syscall_64+0x9f/0x180
  ? lockdep_hardirqs_on+0x78/0x100
  ? do_syscall_64+0x9f/0x180
  ? __pfx___x64_sys_openat+0x10/0x10
  ? lockdep_hardirqs_on_prepare+0x16d/0x400
  ? do_syscall_64+0x9f/0x180
  ? lockdep_hardirqs_on+0x78/0x100
  ? do_syscall_64+0x9f/0x180
  entry_SYSCALL_64_after_hwframe+0x76/0x7e
 RIP: 0033:0x7f436712b68b
 RSP: 002b:00007ffe9f1a8658 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0
 RAX: ffffffffffffffda RBX: 00005559b367fd80 RCX: 00007f436712b68b
 RDX: 0000000000000000 RSI: 0000000000000800 RDI: 00005559b367fde8
 RBP: 00007ffe9f1a8680 R08: 1999999999999999 R09: 0000000000000000
 R10: 00007f43671a5fe0 R11: 0000000000000206 R12: 0000000000000000
 R13: 00007ffe9f1a86b0 R14: 0000000000000000 R15: 0000000000000000
  </TASK>

Reported-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
CC: <stable@vger.kernel.org> # 6.13+
Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2025-04-17 11:57:25 +02:00
Naohiro Aota
c1a79b1a58 block: introduce zone capacity helper
{bdev,disk}_zone_capacity() takes block_device or gendisk and sector position
and returns the zone capacity of the corresponding zone.

With that, move disk_nr_zones() and blk_zone_plug_bio() to consolidate them in
the same #ifdef block.

Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2025-04-17 11:57:20 +02:00
David Sterba
f1ab0171e9 btrfs: tree-checker: adjust error code for header level check
The whole tree checker returns EUCLEAN, except the one check in
btrfs_verify_level_key(). This was inherited from the function that was
moved from disk-io.c in 2cac5af165 ("btrfs: move
btrfs_verify_level_key into tree-checker.c") but this should be unified
with the rest.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2025-04-17 11:56:53 +02:00
Filipe Manana
50fecb8cf0 btrfs: fix invalid inode pointer after failure to create reloc inode
If we have a failure at create_reloc_inode(), under the 'out' label we
assign an error pointer to the 'inode' variable and then return a weird
pointer because we return the expression "&inode->vfs_inode":

   static noinline_for_stack struct inode *create_reloc_inode(
                                    const struct btrfs_block_group *group)
   {
       (...)
   out:
       (...)
       if (ret) {
            if (inode)
                  iput(&inode->vfs_inode);
            inode = ERR_PTR(ret);
       }
       return &inode->vfs_inode;
   }

This can make us return a pointer that is not an error pointer and make
the caller proceed as if an error didn't happen and later result in an
invalid memory access when dereferencing the inode pointer.
Syzbot reported reported such a case with the following stack trace:

   R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
   R13: 0000000000000000 R14: 431bde82d7b634db R15: 00007ffc55de5790
    </TASK>
   BTRFS info (device loop0): relocating block group 6881280 flags data|metadata
   Oops: general protection fault, probably for non-canonical address 0xdffffc0000000045: 0000 [#1] SMP KASAN NOPTI
   KASAN: null-ptr-deref in range [0x0000000000000228-0x000000000000022f]
   CPU: 0 UID: 0 PID: 5332 Comm: syz-executor215 Not tainted 6.14.0-syzkaller-13423-ga8662bcd2ff1 #0 PREEMPT(full)
   Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
   RIP: 0010:relocate_file_extent_cluster+0xe7/0x1750 fs/btrfs/relocation.c:2971
   Code: 00 74 08 (...)
   RSP: 0018:ffffc9000d3375e0 EFLAGS: 00010203
   RAX: 0000000000000045 RBX: 000000000000022c RCX: ffff888000562440
   RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880452db000
   RBP: ffffc9000d337870 R08: ffffffff84089251 R09: 0000000000000000
   R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
   R13: ffffffff9368a020 R14: 0000000000000394 R15: ffff8880452db000
   FS:  000055558bc7b380(0000) GS:ffff88808c596000(0000) knlGS:0000000000000000
   CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
   CR2: 000055a7a192e740 CR3: 0000000036e2e000 CR4: 0000000000352ef0
   DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
   DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
   Call Trace:
    <TASK>
    relocate_block_group+0xa1e/0xd50 fs/btrfs/relocation.c:3657
    btrfs_relocate_block_group+0x777/0xd80 fs/btrfs/relocation.c:4011
    btrfs_relocate_chunk+0x12c/0x3b0 fs/btrfs/volumes.c:3511
    __btrfs_balance+0x1a93/0x25e0 fs/btrfs/volumes.c:4292
    btrfs_balance+0xbde/0x10c0 fs/btrfs/volumes.c:4669
    btrfs_ioctl_balance+0x3f5/0x660 fs/btrfs/ioctl.c:3586
    vfs_ioctl fs/ioctl.c:51 [inline]
    __do_sys_ioctl fs/ioctl.c:906 [inline]
    __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:892
    do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
    do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
    entry_SYSCALL_64_after_hwframe+0x77/0x7f
   RIP: 0033:0x7fb4ef537dd9
   Code: 28 00 00 (...)
   RSP: 002b:00007ffc55de5728 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
   RAX: ffffffffffffffda RBX: 00007ffc55de5750 RCX: 00007fb4ef537dd9
   RDX: 0000200000000440 RSI: 00000000c4009420 RDI: 0000000000000003
   RBP: 0000000000000002 R08: 00007ffc55de54c6 R09: 00007ffc55de5770
   R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
   R13: 0000000000000000 R14: 431bde82d7b634db R15: 00007ffc55de5790
    </TASK>
   Modules linked in:
   ---[ end trace 0000000000000000 ]---
   RIP: 0010:relocate_file_extent_cluster+0xe7/0x1750 fs/btrfs/relocation.c:2971
   Code: 00 74 08 (...)
   RSP: 0018:ffffc9000d3375e0 EFLAGS: 00010203
   RAX: 0000000000000045 RBX: 000000000000022c RCX: ffff888000562440
   RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880452db000
   RBP: ffffc9000d337870 R08: ffffffff84089251 R09: 0000000000000000
   R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
   R13: ffffffff9368a020 R14: 0000000000000394 R15: ffff8880452db000
   FS:  000055558bc7b380(0000) GS:ffff88808c596000(0000) knlGS:0000000000000000
   CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
   CR2: 000055a7a192e740 CR3: 0000000036e2e000 CR4: 0000000000352ef0
   DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
   DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
   ----------------
   Code disassembly (best guess):
      0:	00 74 08 48          	add    %dh,0x48(%rax,%rcx,1)
      4:	89 df                	mov    %ebx,%edi
      6:	e8 f8 36 24 fe       	call   0xfe243703
      b:	48 89 9c 24 30 01 00 	mov    %rbx,0x130(%rsp)
     12:	00
     13:	4c 89 74 24 28       	mov    %r14,0x28(%rsp)
     18:	4d 8b 76 10          	mov    0x10(%r14),%r14
     1c:	49 8d 9e 98 fe ff ff 	lea    -0x168(%r14),%rbx
     23:	48 89 d8             	mov    %rbx,%rax
     26:	48 c1 e8 03          	shr    $0x3,%rax
   * 2a:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1) <-- trapping instruction
     2f:	74 08                	je     0x39
     31:	48 89 df             	mov    %rbx,%rdi
     34:	e8 ca 36 24 fe       	call   0xfe243703
     39:	4c 8b 3b             	mov    (%rbx),%r15
     3c:	48                   	rex.W
     3d:	8b                   	.byte 0x8b
     3e:	44                   	rex.R
     3f:	24                   	.byte 0x24

So fix this by returning the error immediately.

Reported-by: syzbot+7481815bb47ef3e702e2@syzkaller.appspotmail.com
Link: https://lore.kernel.org/linux-btrfs/67f14ee9.050a0220.0a13.023e.GAE@google.com/
Fixes: b204e5c7d4 ("btrfs: make btrfs_iget() return a btrfs inode instead")
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2025-04-17 11:56:36 +02:00
Johannes Thumshirn
b0c26f4799 btrfs: zoned: return EIO on RAID1 block group write pointer mismatch
There was a bug report about a NULL pointer dereference in
__btrfs_add_free_space_zoned() that ultimately happens because a
conversion from the default metadata profile DUP to a RAID1 profile on two
disks.

The stack trace has the following signature:

  BTRFS error (device sdc): zoned: write pointer offset mismatch of zones in raid1 profile
  BUG: kernel NULL pointer dereference, address: 0000000000000058
  #PF: supervisor read access in kernel mode
  #PF: error_code(0x0000) - not-present page
  PGD 0 P4D 0
  Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
  RIP: 0010:__btrfs_add_free_space_zoned.isra.0+0x61/0x1a0
  RSP: 0018:ffffa236b6f3f6d0 EFLAGS: 00010246
  RAX: 0000000000000000 RBX: ffff96c8132f3400 RCX: 0000000000000001
  RDX: 0000000010000000 RSI: 0000000000000000 RDI: ffff96c8132f3410
  RBP: 0000000010000000 R08: 0000000000000003 R09: 0000000000000000
  R10: 0000000000000000 R11: 00000000ffffffff R12: 0000000000000000
  R13: ffff96c758f65a40 R14: 0000000000000001 R15: 000011aac0000000
  FS: 00007fdab1cb2900(0000) GS:ffff96e60ca00000(0000) knlGS:0000000000000000
  CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000000000000058 CR3: 00000001a05ae000 CR4: 0000000000350ef0
  Call Trace:
  <TASK>
  ? __die_body.cold+0x19/0x27
  ? page_fault_oops+0x15c/0x2f0
  ? exc_page_fault+0x7e/0x180
  ? asm_exc_page_fault+0x26/0x30
  ? __btrfs_add_free_space_zoned.isra.0+0x61/0x1a0
  btrfs_add_free_space_async_trimmed+0x34/0x40
  btrfs_add_new_free_space+0x107/0x120
  btrfs_make_block_group+0x104/0x2b0
  btrfs_create_chunk+0x977/0xf20
  btrfs_chunk_alloc+0x174/0x510
  ? srso_return_thunk+0x5/0x5f
  btrfs_inc_block_group_ro+0x1b1/0x230
  btrfs_relocate_block_group+0x9e/0x410
  btrfs_relocate_chunk+0x3f/0x130
  btrfs_balance+0x8ac/0x12b0
  ? srso_return_thunk+0x5/0x5f
  ? srso_return_thunk+0x5/0x5f
  ? __kmalloc_cache_noprof+0x14c/0x3e0
  btrfs_ioctl+0x2686/0x2a80
  ? srso_return_thunk+0x5/0x5f
  ? ioctl_has_perm.constprop.0.isra.0+0xd2/0x120
  __x64_sys_ioctl+0x97/0xc0
  do_syscall_64+0x82/0x160
  ? srso_return_thunk+0x5/0x5f
  ? __memcg_slab_free_hook+0x11a/0x170
  ? srso_return_thunk+0x5/0x5f
  ? kmem_cache_free+0x3f0/0x450
  ? srso_return_thunk+0x5/0x5f
  ? srso_return_thunk+0x5/0x5f
  ? syscall_exit_to_user_mode+0x10/0x210
  ? srso_return_thunk+0x5/0x5f
  ? do_syscall_64+0x8e/0x160
  ? sysfs_emit+0xaf/0xc0
  ? srso_return_thunk+0x5/0x5f
  ? srso_return_thunk+0x5/0x5f
  ? seq_read_iter+0x207/0x460
  ? srso_return_thunk+0x5/0x5f
  ? vfs_read+0x29c/0x370
  ? srso_return_thunk+0x5/0x5f
  ? srso_return_thunk+0x5/0x5f
  ? syscall_exit_to_user_mode+0x10/0x210
  ? srso_return_thunk+0x5/0x5f
  ? do_syscall_64+0x8e/0x160
  ? srso_return_thunk+0x5/0x5f
  ? exc_page_fault+0x7e/0x180
  entry_SYSCALL_64_after_hwframe+0x76/0x7e
  RIP: 0033:0x7fdab1e0ca6d
  RSP: 002b:00007ffeb2b60c80 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
  RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fdab1e0ca6d
  RDX: 00007ffeb2b60d80 RSI: 00000000c4009420 RDI: 0000000000000003
  RBP: 00007ffeb2b60cd0 R08: 0000000000000000 R09: 0000000000000013
  R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
  R13: 00007ffeb2b6343b R14: 00007ffeb2b60d80 R15: 0000000000000001
  </TASK>
  CR2: 0000000000000058
  ---[ end trace 0000000000000000 ]---

The 1st line is the most interesting here:

 BTRFS error (device sdc): zoned: write pointer offset mismatch of zones in raid1 profile

When a RAID1 block-group is created and a write pointer mismatch between
the disks in the RAID set is detected, btrfs sets the alloc_offset to the
length of the block group marking it as full. Afterwards the code expects
that a balance operation will evacuate the data in this block-group and
repair the problems.

But before this is possible, the new space of this block-group will be
accounted in the free space cache. But in __btrfs_add_free_space_zoned()
it is being checked if it is a initial creation of a block group and if
not a reclaim decision will be made. But the decision if a block-group's
free space accounting is done for an initial creation depends on if the
size of the added free space is the whole length of the block-group and
the allocation offset is 0.

But as btrfs_load_block_group_zone_info() sets the allocation offset to
the zone capacity (i.e. marking the block-group as full) this initial
decision is not met, and the space_info pointer in the 'struct
btrfs_block_group' has not yet been assigned.

Fail creation of the block group and rely on manual user intervention to
re-balance the filesystem.

Afterwards the filesystem can be unmounted, mounted in degraded mode and
the missing device can be removed after a full balance of the filesystem.

Reported-by: 西木野羰基 <yanqiyu01@gmail.com>
Link: https://lore.kernel.org/linux-btrfs/CAB_b4sBhDe3tscz=duVyhc9hNE+gu=B8CrgLO152uMyanR8BEA@mail.gmail.com/
Fixes: b1934cd606 ("btrfs: zoned: handle broken write pointer on zones")
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2025-04-17 11:56:19 +02:00
Qu Wenruo
7d82240c45 btrfs: fix the ASSERT() inside GET_SUBPAGE_BITMAP()
After enabling large data folios for tests, I hit the ASSERT() inside
GET_SUBPAGE_BITMAP() where blocks_per_folio matches BITS_PER_LONG.

The ASSERT() itself is only based on the original subpage fs block size,
where we have at most 16 blocks per page, thus
"ASSERT(blocks_per_folio < BITS_PER_LONG)".

However the experimental large data folio support will set the max folio
order according to the BITS_PER_LONG, so we can have a case where a large
folio contains exactly BITS_PER_LONG blocks.

So the ASSERT() is too strict, change it to
"ASSERT(blocks_per_folio <= BITS_PER_LONG)" to avoid the false alert.

Reviewed-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
Reviewed-by: Boris Burkov <boris@bur.io>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2025-04-17 11:55:56 +02:00
Qu Wenruo
bc2dbc4983 btrfs: avoid page_lockend underflow in btrfs_punch_hole_lock_range()
[BUG]
When running btrfs/004 with 4K fs block size and 64K page size,
sometimes fsstress workload can take 100% CPU for a while, but not long
enough to trigger a 120s hang warning.

[CAUSE]
When such 100% CPU usage happens, btrfs_punch_hole_lock_range() is
always in the call trace.

One example when this problem happens, the function
btrfs_punch_hole_lock_range() got the following parameters:

  lock_start = 4096, lockend = 20469

Then we calculate @page_lockstart by rounding up lock_start to page
boundary, which is 64K (page size is 64K).

For @page_lockend, we round down the value towards page boundary, which
result 0.  Then since we need to pass an inclusive end to
filemap_range_has_page(), we subtract 1 from the rounded down value,
resulting in (u64)-1.

In the above case, the range is inside the same page, and we do not even
need to call filemap_range_has_page(), not to mention to call it with
(u64)-1 at the end.

This behavior will cause btrfs_punch_hole_lock_range() to busy loop
waiting for irrelevant range to have its pages dropped.

[FIX]
Calculate @page_lockend by just rounding down @lockend, without
decreasing the value by one.  So @page_lockend will no longer overflow.

Then exit early if @page_lockend is no larger than @page_lockstart.
As it means either the range is inside the same page, or the two pages
are adjacent already.

Finally only decrease @page_lockend when calling filemap_range_has_page().

Fixes: 0528476b6a ("btrfs: fix the filemap_range_has_page() call in btrfs_punch_hole_lock_range()")
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2025-04-17 11:55:34 +02:00
Qu Wenruo
cf6ae7ed09 btrfs: subpage: access correct object when reading bitmap start in subpage_calc_start_bit()
Inside the macro, subpage_calc_start_bit(), we need to calculate the
offset to the beginning of the folio.

But we're using offset_in_page(), on systems with 4K page size and 4K fs
block size, this means we will always return offset 0 for a large folio,
causing all kinds of errors.

Fix it by using offset_in_folio() instead.

Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2025-04-17 11:55:17 +02:00
Biju Das
061f087f5d pwm: Add support for RZ/G2L GPT
RZ/G2L General PWM Timer (GPT) composed of 8 channels with 32-bit timer
(GPT32E). It supports the following functions
 * 32 bits x 8 channels
 * Up-counting or down-counting (saw waves) or up/down-counting
   (triangle waves) for each counter.
 * Clock sources independently selectable for each channel
 * Two I/O pins per channel
 * Two output compare/input capture registers per channel
 * For the two output compare/input capture registers of each channel,
   four registers are provided as buffer registers and are capable of
   operating as comparison registers when buffering is not in use.
 * In output compare operation, buffer switching can be at crests or
   troughs, enabling the generation of laterally asymmetric PWM waveforms.
 * Registers for setting up frame cycles in each channel (with capability
   for generating interrupts at overflow or underflow)
 * Generation of dead times in PWM operation
 * Synchronous starting, stopping and clearing counters for arbitrary
   channels
 * Starting, stopping, clearing and up/down counters in response to input
   level comparison
 * Starting, clearing, stopping and up/down counters in response to a
   maximum of four external triggers
 * Output pin disable function by dead time error and detected
   short-circuits between output pins
 * A/D converter start triggers can be generated (GPT32E0 to GPT32E3)
 * Enables the noise filter for input capture and external trigger
   operation

Add basic pwm support for RZ/G2L GPT driver by creating separate
logical channels for each IOs.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20250226144531.176819-4-biju.das.jz@bp.renesas.com
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
2025-04-17 11:52:13 +02:00
Biju Das
9549d22684 dt-bindings: pwm: Add RZ/G2L GPT binding
Add device tree bindings for the General PWM Timer (GPT).

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20250226144531.176819-2-biju.das.jz@bp.renesas.com
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
2025-04-17 11:52:13 +02:00
Uwe Kleine-König
e463b05d10 pwm: Better document return value of pwm_round_waveform_might_sleep()
Better explain how pwm_round_waveform_might_sleep() (and so the
respective lowlevel driver callback) is supposed to round and the
meaning of the return value.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://lore.kernel.org/r/db84abf1e82e4498fc0e7c318d2673771d0039fe.1744120697.git.ukleinek@kernel.org
[ukleinek: Fix a rst formatting issue reported by Stephen Rothwell]
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
2025-04-17 11:52:13 +02:00
Dan Carpenter
bd897149e4 pwm: loongson: Fix an error code in probe()
There is a copy and paste bug so we accidentally returned
PTR_ERR(ddata->clk) instead of "ret".

Fixes: 2b62c89448 ("pwm: Add Loongson PWM controller support")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Binbin Zhou <zhoubinbin@loongson.cn>
Link: https://lore.kernel.org/r/6965a480-745c-426f-b17b-e96af532578f@stanley.mountain
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
2025-04-17 11:51:29 +02:00
Nathan Lynch
df180e6530 dmaengine: Revert "dmaengine: dmatest: Fix dmatest waiting less when interrupted"
Several issues with this change:

* The analysis is flawed and it's unclear what problem is being
  fixed. There is no difference between wait_event_freezable_timeout()
  and wait_event_timeout() with respect to device interrupts. And of
  course "the interrupt notifying the finish of an operation happens
  during wait_event_freezable_timeout()" -- that's how it's supposed
  to work.

* The link at the "Closes:" tag appears to be an unrelated
  use-after-free in idxd.

* It introduces a regression: dmatest threads are meant to be
  freezable and this change breaks that.

See discussion here:
https://lore.kernel.org/dmaengine/878qpa13fe.fsf@AUSNATLYNCH.amd.com/

Fixes: e87ca16e99 ("dmaengine: dmatest: Fix dmatest waiting less when interrupted")
Signed-off-by: Nathan Lynch <nathan.lynch@amd.com>
Link: https://lore.kernel.org/r/20250403-dmaengine-dmatest-revert-waiting-less-v1-1-8227c5a3d7c8@amd.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2025-04-17 15:06:02 +05:30
Boris Brezillon
938aaed555 drm/panthor: Fix the panthor_gpu_coherency_init() error path
The panthor_gpu_coherency_init() call has been moved around, but the
error path hasn't been adjusted accordingly. Make sure we undo what
has been done before this call in case of failure.

Fixes: 7d5a3b22f5 ("drm/panthor: Call panthor_gpu_coherency_init() after PM resume()")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/dri-devel/4da470aa-4f84-460e-aff8-dabc8cc4da15@stanley.mountain/T/#t
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://lore.kernel.org/r/20250414130120.581274-1-boris.brezillon@collabora.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
2025-04-17 11:29:49 +02:00
Paul Retourné
06886c96a1 staging: gpib: include: fixes multiline comments style
Fixes the style of multiline comments to comply with the linux kernel
coding style.

Signed-off-by: Paul Retourné <paul.retourne@orange.fr>
Link: https://lore.kernel.org/r/20250416210411.9300-2-paul.retourne@orange.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:22:43 +02:00
Alan Borzeszkowski
4fd7a1f0f7 usb: typec: Connect Type-C port with associated USB4 port
If USB3.x device references USB4 host interface, USB4 port can be
connected with appropriate Type-C port. By using component framework,
and in turn by creating symlinks, userspace can benefit from having
Thunderbolt/USB4 connection to Type-C ports.

Note: This change introduces dependency on Thunderbolt driver as it's
required to properly map USB4 port to Type-C port.

Signed-off-by: Alan Borzeszkowski <alan.borzeszkowski@linux.intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2025-04-17 12:21:45 +03:00
Alan Borzeszkowski
e80c235994 thunderbolt: Add Thunderbolt/USB4 <-> USB3 match function
This function checks whether given USB4 port device matches with USB3.x
port device, using ACPI _DSD property.

It is designed to be used by component framework to match
USB4 ports with Type-C ports they are connected to.

Also, added USB4 config stub in case mapping function is not reachable.

Signed-off-by: Alan Borzeszkowski <alan.borzeszkowski@linux.intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2025-04-17 12:21:45 +03:00
Alan Borzeszkowski
f93b5e2464 thunderbolt: Expose usb4_port_index() to other modules
Make usb4_port_index() available to other files in the driver, rename
and add function documentation.

Signed-off-by: Alan Borzeszkowski <alan.borzeszkowski@linux.intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2025-04-17 12:21:45 +03:00
Ruben Wauters
c9bc151fb0 staging: gpib: agilent_02350b: cleanup comments
Cleans up the comments in both the c and the h file.
Standardises the comment type (/* */) and the indentation.

Signed-off-by: Ruben Wauters <rubenru09@aol.com>
Link: https://lore.kernel.org/r/20250415151246.30337-1-rubenru09@aol.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:19:48 +02:00
Florian Westphal
d2d31ea8cd netfilter: conntrack: fix erronous removal of offload bit
The blamed commit exposes a possible issue with flow_offload_teardown():
We might remove the offload bit of a conntrack entry that has been
offloaded again.

1. conntrack entry c1 is offloaded via flow f1 (f1->ct == c1).
2. f1 times out and is pushed back to slowpath, c1 offload bit is
   removed.  Due to bug, f1 is not unlinked from rhashtable right away.
3. a new packet arrives for the flow and re-offload is triggered, i.e.
   f2->ct == c1.  This is because lookup in flowtable skip entries with
   teardown bit set.
4. Next flowtable gc cycle finds f1 again
5. flow_offload_teardown() is called again for f1 and c1 offload bit is
   removed again, even though we have f2 referencing the same entry.

This is harmless, but clearly not correct.
Fix the bug that exposes this: set 'teardown = true' to have the gc
callback unlink the flowtable entry from the table right away instead of
the unintentional defer to the next round.

Also prevent flow_offload_teardown() from fixing up the ct state more than
once: We could also be called from the data path or a notifier, not only
from the flowtable gc callback.

NF_FLOW_TEARDOWN can never be unset, so we can use it as synchronization
point: if we observe did not see a 0 -> 1 transition, then another CPU
is already doing the ct state fixups for us.

Fixes: 03428ca5ce ("netfilter: conntrack: rework offload nf_conn timeout extension logic")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2025-04-17 11:14:22 +02:00
Michael Rubin
b0b23267b6 staging: gpib: uapi: Fix CamelCase and IBA Dup
Resolved duplicate entry for IbaSPollBit vs IbaSpollBit.
Correct CamelCase for IBA enums

Adhere to Linux kernel coding style.

Reported by checkpatch

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250416203259.7862-2-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:13:59 +02:00
Michael Rubin
7567dfdd24 staging: gpib: Removing typedef gpib_interface_t
Removing gpib_interface_t to adhere to Linux code style.

Reported by checkpatch.pl

In general, a pointer, or a struct that has elements that can reasonably be
directly accessed should never be a typedef.

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417003246.84445-19-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:12:55 +02:00
Michael Rubin
124248c48d staging: gpib: tnt4882: struct gpib_interface
Using Linux code style for struct gpib_interface.

Adhering to Linux code style.

Reported by checkpatch.pl

In general, a pointer, or a struct that has elements that can reasonably be
directly accessed should never be a typedef.

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417003246.84445-18-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:12:55 +02:00
Michael Rubin
575fb9c3fa staging: gpib: pc2: struct gpib_interface
Using Linux code style for struct gpib_interface.

Adhering to Linux code style.

Reported by checkpatch.pl

In general, a pointer, or a struct that has elements that can reasonably be
directly accessed should never be a typedef.

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417003246.84445-17-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:12:55 +02:00
Michael Rubin
4f7c239116 staging: gpib: ni_usb: struct gpib_interface
Using Linux code style for struct gpib_interface.

Adhering to Linux code style.

Reported by checkpatch.pl

In general, a pointer, or a struct that has elements that can reasonably be
directly accessed should never be a typedef.

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417003246.84445-16-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:12:55 +02:00
Michael Rubin
355582c238 staging: gpib: lpvo_usb: struct gpib_interface
Using Linux code style for struct gpib_interface.

Adhering to Linux code style.

Reported by checkpatch.pl

In general, a pointer, or a struct that has elements that can reasonably be
directly accessed should never be a typedef.

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417003246.84445-15-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:12:54 +02:00
Michael Rubin
3b306801b1 staging: gpib: ines: struct gpib_interface
Using Linux code style for struct gpib_interface.

Adhering to Linux code style.

Reported by checkpatch.pl

In general, a pointer, or a struct that has elements that can reasonably be
directly accessed should never be a typedef.

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417003246.84445-14-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:12:54 +02:00
Michael Rubin
03ccd6cc23 staging: gpib: gpibP: struct gpib_interface
Using Linux code style for struct gpib_interface.

Adhering to Linux code style.

Reported by checkpatch.pl

In general, a pointer, or a struct that has elements that can reasonably be
directly accessed should never be a typedef.

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417003246.84445-13-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:12:54 +02:00
Michael Rubin
c424bd8e48 staging: gpib: hp2341: struct gpib_interface
Using Linux code style for struct gpib_interface.

Adhering to Linux code style.

Reported by checkpatch.pl

In general, a pointer, or a struct that has elements that can reasonably be
directly accessed should never be a typedef.

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417003246.84445-12-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:12:54 +02:00
Michael Rubin
e86b18d2b1 staging: gpib: hp_82335: struct gpib_interface
Using Linux code style for struct gpib_interface.

Adhering to Linux code style.

Reported by checkpatch.pl

In general, a pointer, or a struct that has elements that can reasonably be
directly accessed should never be a typedef.

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417003246.84445-11-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:12:54 +02:00
Michael Rubin
57b580be50 staging: gpib: gpio: struct gpib_interface
Using Linux code style for struct gpib_interface.

Adhering to Linux code style.

Reported by checkpatch.pl

In general, a pointer, or a struct that has elements that can reasonably be
directly accessed should never be a typedef.

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417003246.84445-10-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:12:54 +02:00
Michael Rubin
326ecce53e staging: gpib: fmh: struct gpib_interface
Using Linux code style for struct gpib_interface.

Adhering to Linux code style.

Reported by checkpatch.pl

In general, a pointer, or a struct that has elements that can reasonably be
directly accessed should never be a typedef.

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417003246.84445-9-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:12:54 +02:00
Michael Rubin
1de93ff920 staging: gpib: fluke: struct gpib_interface
Using Linux code style for struct gpib_interface.

Adhering to Linux code style.

Reported by checkpatch.pl

In general, a pointer, or a struct that has elements that can reasonably be
directly accessed should never be a typedef.

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417003246.84445-8-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:12:54 +02:00
Michael Rubin
67bfc75295 staging: gpib: common: struct gpib_interface
Using Linux code style for struct gpib_interface.

Adhering to Linux code style.

Reported by checkpatch.pl

In general, a pointer, or a struct that has elements that can reasonably be
directly accessed should never be a typedef.

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417003246.84445-7-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:12:54 +02:00
Michael Rubin
276da96d9f staging: gpib: cec: struct gpib_interface
Using Linux code style for struct gpib_interface.

Adhering to Linux code style.

Reported by checkpatch.pl

In general, a pointer, or a struct that has elements that can reasonably be
directly accessed should never be a typedef.

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417003246.84445-6-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:12:53 +02:00
Michael Rubin
a988518b02 staging: gpib: cb7210: struct gpib_interface
Using Linux code style for struct gpib_interface.

Adhering to Linux code style.

Reported by checkpatch.pl

In general, a pointer, or a struct that has elements that can reasonably be
directly accessed should never be a typedef.

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417003246.84445-5-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:12:53 +02:00
Michael Rubin
476d9feecc staging: gpib: agilent_82357a: gpib_interface
Using Linux code style for struct gpib_interface.

Adhering to Linux code style.

Reported by checkpatch.pl

In general, a pointer, or a struct that has elements that can reasonably be
directly accessed should never be a typedef.

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417003246.84445-4-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:12:53 +02:00
Michael Rubin
411d0ba3dd staging: gpib: agilent_82350b: gpib_interface
Using Linux code style for struct gpib_interface.

Adhering to Linux code style.

Reported by checkpatch.pl

In general, a pointer, or a struct that has elements that can reasonably be
directly accessed should never be a typedef.

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417003246.84445-3-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:12:53 +02:00
Michael Rubin
2492a17bdc staging: gpib: struct typing for gpib_interface
"Having the word "_struct" in the name of the struct doesn't add any
information so rename "struct gpib_interface_struct" to
"struct gpib_interface".

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417003246.84445-2-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:12:53 +02:00
Michael Rubin
d6e1f701c6 staging: gpib: tnt4882: u8 over uint8_t
Reported by checkpatch.pl.

CHECK: Prefer kernel type 'u8' over 'uint8_t'

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417004533.86765-15-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:11:37 +02:00
Michael Rubin
17598a86ad staging: gpib: lpvo_usb_gpib: u8 over uint8_t
Reported by checkpatch.pl.

CHECK: Prefer kernel type 'u8' over 'uint8_t'
Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417004533.86765-14-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:11:37 +02:00
Michael Rubin
78001dd08e staging: gpib: gpib_ioctl: u64 over uint64_t
Reported by checkpatch.pl.

CHECK: Prefer kernel type 'u64' over 'uint64_t'

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417004533.86765-13-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:11:37 +02:00
Michael Rubin
6b0bf6f2ed staging: gpib: pc2: u8 over uint8_t
Reported by checkpatch.pl.

CHECK: Prefer kernel type 'u8' over 'uint8_t'
Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417004533.86765-12-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:11:36 +02:00
Michael Rubin
fcd9395095 staging: gpib: ni_usb: u8 over uint8_t
Reported by checkpatch.pl.

CHECK: Prefer kernel type 'u8' over 'uint8_t'
Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417004533.86765-11-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:11:36 +02:00
Michael Rubin
2ec7c08f39 staging: gpib: hp_82341: u8 over uint8_t
Reported by checkpatch.pl.

CHECK: Prefer kernel type 'u8' over 'uint8_t'

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Link: https://lore.kernel.org/r/20250417004533.86765-10-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-17 11:11:36 +02:00