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Saurav Kashyap c885ab2320 scsi: bnx2fc: Remove spin_lock_bh while releasing resources after upload [ Upstream commit `c214ed2a4d` ] The session resources are used by FW and driver when session is offloaded, once session is uploaded these resources are not used. The lock is not required as these fields won't be used any longer. The offload and upload calls are sequential, hence lock is not required. This will suppress following BUG_ON(): [ 449.843143] ------------[ cut here ]------------ [ 449.848302] kernel BUG at mm/vmalloc.c:2727! [ 449.853072] invalid opcode: 0000 [#1] PREEMPT SMP PTI [ 449.858712] CPU: 5 PID: 1996 Comm: kworker/u24:2 Not tainted 5.14.0-118.el9.x86_64 #1 Rebooting. [ 449.867454] Hardware name: Dell Inc. PowerEdge R730/0WCJNT, BIOS 2.3.4 11/08/2016 [ 449.876966] Workqueue: fc_rport_eq fc_rport_work [libfc] [ 449.882910] RIP: 0010:vunmap+0x2e/0x30 [ 449.887098] Code: 00 65 8b 05 14 a2 f0 4a a9 00 ff ff 00 75 1b 55 48 89 fd e8 34 36 79 00 48 85 ed 74 0b 48 89 ef 31 f6 5d e9 14 fc ff ff 5d c3 <0f> 0b 0f 1f 44 00 00 41 57 41 56 49 89 ce 41 55 49 89 fd 41 54 41 [ 449.908054] RSP: 0018:ffffb83d878b3d68 EFLAGS: 00010206 [ 449.913887] RAX: 0000000080000201 RBX: ffff8f4355133550 RCX: 000000000d400005 [ 449.921843] RDX: 0000000000000001 RSI: 0000000000001000 RDI: ffffb83da53f5000 [ 449.929808] RBP: ffff8f4ac6675800 R08: ffffb83d878b3d30 R09: 00000000000efbdf [ 449.937774] R10: 0000000000000003 R11: ffff8f434573e000 R12: 0000000000001000 [ 449.945736] R13: 0000000000001000 R14: ffffb83da53f5000 R15: ffff8f43d4ea3ae0 [ 449.953701] FS: 0000000000000000(0000) GS:ffff8f529fc80000(0000) knlGS:0000000000000000 [ 449.962732] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 449.969138] CR2: 00007f8cf993e150 CR3: 0000000efbe10003 CR4: 00000000003706e0 [ 449.977102] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 449.985065] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 449.993028] Call Trace: [ 449.995756] __iommu_dma_free+0x96/0x100 [ 450.000139] bnx2fc_free_session_resc+0x67/0x240 [bnx2fc] [ 450.006171] bnx2fc_upload_session+0xce/0x100 [bnx2fc] [ 450.011910] bnx2fc_rport_event_handler+0x9f/0x240 [bnx2fc] [ 450.018136] fc_rport_work+0x103/0x5b0 [libfc] [ 450.023103] process_one_work+0x1e8/0x3c0 [ 450.027581] worker_thread+0x50/0x3b0 [ 450.031669] ? rescuer_thread+0x370/0x370 [ 450.036143] kthread+0x149/0x170 [ 450.039744] ? set_kthread_struct+0x40/0x40 [ 450.044411] ret_from_fork+0x22/0x30 [ 450.048404] Modules linked in: vfat msdos fat xfs nfs_layout_nfsv41_files rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver dm_service_time qedf qed crc8 bnx2fc libfcoe libfc scsi_transport_fc intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp dcdbas rapl intel_cstate intel_uncore mei_me pcspkr mei ipmi_ssif lpc_ich ipmi_si fuse zram ext4 mbcache jbd2 loop nfsv3 nfs_acl nfs lockd grace fscache netfs irdma ice sd_mod t10_pi sg ib_uverbs ib_core 8021q garp mrp stp llc mgag200 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt mxm_wmi fb_sys_fops cec crct10dif_pclmul ahci crc32_pclmul bnx2x drm ghash_clmulni_intel libahci rfkill i40e libata megaraid_sas mdio wmi sunrpc lrw dm_crypt dm_round_robin dm_multipath dm_snapshot dm_bufio dm_mirror dm_region_hash dm_log dm_zero dm_mod linear raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx raid6_pq libcrc32c crc32c_intel raid1 raid0 iscsi_ibft squashfs be2iscsi bnx2i cnic uio cxgb4i cxgb4 tls [ 450.048497] libcxgbi libcxgb qla4xxx iscsi_boot_sysfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi edd ipmi_devintf ipmi_msghandler [ 450.159753] ---[ end trace 712de2c57c64abc8 ]--- Reported-by: Guangwu Zhang <guazhang@redhat.com> Signed-off-by: Saurav Kashyap <skashyap@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Link: https://lore.kernel.org/r/20240315071427.31842-1-skashyap@marvell.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-05-17 12:02:11 +02:00
arch	KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr()	2024-05-17 12:02:08 +02:00
block	block: fix q->blkg_list corruption during disk rebind	2024-04-17 11:19:28 +02:00
certs	certs: Reference revocation list for all keyrings	2023-08-17 20:12:41 +00:00
crypto	crypto: jitter - fix CRYPTO_JITTERENTROPY help text	2024-03-26 18:19:52 -04:00
Documentation	mm, treewide: introduce NR_PAGE_ORDERS	2024-05-02 16:32:41 +02:00
drivers	scsi: bnx2fc: Remove spin_lock_bh while releasing resources after upload	2024-05-17 12:02:11 +02:00
fs	gfs2: Fix invalid metadata access in punch_hole	2024-05-17 12:02:10 +02:00
include	scsi: mpi3mr: Avoid memcpy field-spanning write WARNING	2024-05-17 12:02:11 +02:00
init	rust: make mutually exclusive with CFI_CLANG	2024-05-02 16:32:42 +02:00
io_uring	io_uring: Fix io_cqring_wait() not restoring sigmask on get_timespec64() failure	2024-04-27 17:11:30 +02:00
ipc	Add x86 shadow stack support	2023-08-31 12:20:12 -07:00
kernel	swiotlb: initialise restricted pool list_head when SWIOTLB_DYNAMIC=y	2024-05-17 12:02:08 +02:00
lib	Fix a potential infinite loop in extract_user_to_sg()	2024-05-17 12:02:02 +02:00
LICENSES	LICENSES: Add the copyleft-next-0.3.1 license	2022-11-08 15:44:01 +01:00
mm	mm: turn folio_test_hugetlb into a PageType	2024-05-02 16:32:47 +02:00
net	net: mark racy access on sk->sk_rcvbuf	2024-05-17 12:02:10 +02:00
rust	rust: kernel: require `Send` for `Module` implementations	2024-05-17 12:01:56 +02:00
samples	work around gcc bugs with 'asm goto' with outputs	2024-02-23 09:24:47 +01:00
scripts	kbuild: rust: force `alloc` extern to allow "empty" Rust files	2024-05-02 16:32:42 +02:00
security	selinux: avoid dereference of garbage after mount failure	2024-04-10 16:35:48 +02:00
sound	ALSA: hda: intel-sdw-acpi: fix usage of device_get_named_child_node()	2024-05-17 12:02:05 +02:00
tools	selftests/seccomp: Handle EINVAL on unshare(CLONE_NEWPID)	2024-05-02 16:32:42 +02:00
usr	initramfs: Encode dependency on KBUILD_BUILD_TIMESTAMP	2023-06-06 17:54:49 +09:00
virt	KVM: Always flush async #PF workqueue when vCPU is being destroyed	2024-04-03 15:28:18 +02:00
.clang-format	iommu: Add for_each_group_device()	2023-05-23 08:15:51 +02:00
.cocciconfig
.get_maintainer.ignore	get_maintainer: add Alan to .get_maintainer.ignore	2022-08-20 15:17:44 -07:00
.gitattributes	.gitattributes: set diff driver for Rust source code files	2023-05-31 17:48:25 +02:00
.gitignore	kbuild: rpm-pkg: rename binkernel.spec to kernel.spec	2023-07-25 00:59:33 +09:00
.mailmap	20 hotfixes. 12 are cc:stable and the remainder address post-6.5 issues	2023-10-24 09:52:16 -10:00
.rustfmt.toml	rust: add `.rustfmt.toml`	2022-09-28 09:02:20 +02:00
COPYING
CREDITS	USB: Remove Wireless USB and UWB documentation	2023-08-09 14:17:32 +02:00
Kbuild	Kbuild updates for v6.1	2022-10-10 12:00:45 -07:00
Kconfig
MAINTAINERS	ALSA: scarlett2: Rename scarlett_gen2 to scarlett2	2024-04-27 17:11:36 +02:00
Makefile	Linux 6.6.30	2024-05-02 16:32:50 +02:00
README

README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.