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Michal Swiatkowski 018ff57fd7 idpf: return 0 size for RSS key if not supported [ Upstream commit `f77bf1ebf8` ] Returning -EOPNOTSUPP from function returning u32 is leading to cast and invalid size value as a result. -EOPNOTSUPP as a size probably will lead to allocation fail. Command: ethtool -x eth0 It is visible on all devices that don't have RSS caps set. [ 136.615917] Call Trace: [ 136.615921] <TASK> [ 136.615927] ? __warn+0x89/0x130 [ 136.615942] ? __alloc_frozen_pages_noprof+0x322/0x330 [ 136.615953] ? report_bug+0x164/0x190 [ 136.615968] ? handle_bug+0x58/0x90 [ 136.615979] ? exc_invalid_op+0x17/0x70 [ 136.615987] ? asm_exc_invalid_op+0x1a/0x20 [ 136.616001] ? rss_prepare_get.constprop.0+0xb9/0x170 [ 136.616016] ? __alloc_frozen_pages_noprof+0x322/0x330 [ 136.616028] __alloc_pages_noprof+0xe/0x20 [ 136.616038] ___kmalloc_large_node+0x80/0x110 [ 136.616072] __kmalloc_large_node_noprof+0x1d/0xa0 [ 136.616081] __kmalloc_noprof+0x32c/0x4c0 [ 136.616098] ? rss_prepare_get.constprop.0+0xb9/0x170 [ 136.616105] rss_prepare_get.constprop.0+0xb9/0x170 [ 136.616114] ethnl_default_doit+0x107/0x3d0 [ 136.616131] genl_family_rcv_msg_doit+0x100/0x160 [ 136.616147] genl_rcv_msg+0x1b8/0x2c0 [ 136.616156] ? __pfx_ethnl_default_doit+0x10/0x10 [ 136.616168] ? __pfx_genl_rcv_msg+0x10/0x10 [ 136.616176] netlink_rcv_skb+0x58/0x110 [ 136.616186] genl_rcv+0x28/0x40 [ 136.616195] netlink_unicast+0x19b/0x290 [ 136.616206] netlink_sendmsg+0x222/0x490 [ 136.616215] __sys_sendto+0x1fd/0x210 [ 136.616233] __x64_sys_sendto+0x24/0x30 [ 136.616242] do_syscall_64+0x82/0x160 [ 136.616252] ? __sys_recvmsg+0x83/0xe0 [ 136.616265] ? syscall_exit_to_user_mode+0x10/0x210 [ 136.616275] ? do_syscall_64+0x8e/0x160 [ 136.616282] ? __count_memcg_events+0xa1/0x130 [ 136.616295] ? count_memcg_events.constprop.0+0x1a/0x30 [ 136.616306] ? handle_mm_fault+0xae/0x2d0 [ 136.616319] ? do_user_addr_fault+0x379/0x670 [ 136.616328] ? clear_bhb_loop+0x45/0xa0 [ 136.616340] ? clear_bhb_loop+0x45/0xa0 [ 136.616349] ? clear_bhb_loop+0x45/0xa0 [ 136.616359] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 136.616369] RIP: 0033:0x7fd30ba7b047 [ 136.616376] Code: 0c 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 80 3d bd d5 0c 00 00 41 89 ca 74 10 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 71 c3 55 48 83 ec 30 44 89 4c 24 2c 4c 89 44 [ 136.616381] RSP: 002b:00007ffde1796d68 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 136.616388] RAX: ffffffffffffffda RBX: 000055d7bd89f2a0 RCX: 00007fd30ba7b047 [ 136.616392] RDX: 0000000000000028 RSI: 000055d7bd89f3b0 RDI: 0000000000000003 [ 136.616396] RBP: 00007ffde1796e10 R08: 00007fd30bb4e200 R09: 000000000000000c [ 136.616399] R10: 0000000000000000 R11: 0000000000000202 R12: 000055d7bd89f340 [ 136.616403] R13: 000055d7bd89f3b0 R14: 000055d78943f200 R15: 0000000000000000 Fixes: `02cbfba1ad` ("idpf: add ethtool callbacks") Reviewed-by: Ahmed Zaki <ahmed.zaki@intel.com> Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Samuel Salin <Samuel.salin@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2025-07-10 16:04:51 +02:00
arch	arm64: dts: apple: t8103: Fix PCIe BCM4377 nodename	2025-07-10 16:04:44 +02:00
block	block: Clear BIO_EMULATES_ZONE_APPEND flag on BIO completion	2025-06-27 11:11:19 +01:00
certs	sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3	2024-09-20 19:52:48 +03:00
crypto	crypto: api - Redo lookup on EEXIST	2025-06-19 15:31:30 +02:00
Documentation	scsi: ufs: core: Fix spelling of a sysfs attribute name	2025-07-10 16:04:46 +02:00
drivers	idpf: return 0 size for RSS key if not supported	2025-07-10 16:04:51 +02:00
fs	smb: client: fix warning when reconnecting channel	2025-07-10 16:04:51 +02:00
include	usb: typec: altmodes/displayport: do not index invalid pin_assignments	2025-07-10 16:04:43 +02:00
init	rust: clean Rust 1.88.0's `unnecessary_transmutes` lint	2025-05-18 08:24:51 +02:00
io_uring	io_uring/kbuf: flag partial buffer mappings	2025-07-06 11:01:48 +02:00
ipc	ipc: fix to protect IPCS lookups using RCU	2025-06-27 11:11:22 +01:00
kernel	perf/core: Fix WARN in perf_cgroup_switch()	2025-06-27 11:11:45 +01:00
lib	maple_tree: fix MA_STATE_PREALLOC flag in mas_preallocate()	2025-07-06 11:01:43 +02:00
LICENSES	LICENSES: add 0BSD license text	2024-09-01 20:43:24 -07:00
mm	mm/vma: reset VMA iterator on commit_merge() OOM failure	2025-07-06 11:01:48 +02:00
net	Bluetooth: Prevent unintended pause by checking if advertising is active	2025-07-10 16:04:47 +02:00
rust	rust: arm: fix unknown (to Clang) argument '-mno-fdpic'	2025-07-06 11:01:33 +02:00
samples	samples/bpf: Fix compilation failure for samples/bpf on LoongArch Fedora	2025-05-29 11:02:01 +02:00
scripts	rust: compile libcore with edition 2024 for 1.87+	2025-06-27 11:11:40 +01:00
security	selinux: fix selinux_xfrm_alloc_user() to set correct ctx_len	2025-06-27 11:11:38 +01:00
sound	ALSA: hda/realtek: Bass speaker fixup for ASUS UM5606KA	2025-07-06 11:01:50 +02:00
tools	iommufd/selftest: Fix iommufd_dirty_tracking with large hugepage sizes	2025-07-10 16:04:43 +02:00
usr	kbuild: hdrcheck: fix cross build with clang	2025-03-13 13:02:18 +01:00
virt	KVM: Add member to struct kvm_gfn_range to indicate private/shared	2025-05-22 14:29:36 +02:00
.clang-format	clang-format: Update with v6.11-rc1's `for_each` macro list	2024-08-02 13:20:31 +02:00
.clippy.toml	rust: clean Rust 1.88.0's warning about `clippy::disallowed_macros` configuration	2025-05-18 08:24:51 +02:00
.cocciconfig	scripts: add Linux .cocciconfig for coccinelle	2016-07-22 12:13:39 +02:00
.editorconfig	.editorconfig: remove trim_trailing_whitespace option	2024-06-13 16:47:52 +02:00
.get_maintainer.ignore	Add Jeff Kirsher to .get_maintainer.ignore	2024-03-08 11:36:54 +00:00
.gitattributes	.gitattributes: set diff driver for Rust source code files	2023-05-31 17:48:25 +02:00
.gitignore	rust: introduce `.clippy.toml`	2025-03-13 13:01:42 +01:00
.mailmap	mailmap: add entry for Thorsten Blum	2024-11-07 14:14:59 -08:00
.rustfmt.toml	rust: add `.rustfmt.toml`	2022-09-28 09:02:20 +02:00
COPYING	COPYING: state that all contributions really are covered by this file	2020-02-10 13:32:20 -08:00
CREDITS	MAINTAINERS: Remove self from DSA entry	2024-11-03 12:52:38 -08:00
Kbuild	Kbuild updates for v6.1	2022-10-10 12:00:45 -07:00
Kconfig	kbuild: ensure full rebuild when the compiler is updated	2020-05-12 13:28:33 +09:00
MAINTAINERS	MAINTAINERS: Update Alexey Makhalov's email address	2025-05-22 14:29:46 +02:00
Makefile	Linux 6.12.36	2025-07-06 11:01:50 +02:00
README	README: Fix spelling	2024-03-18 03:36:32 -06:00

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 reStructuredText 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.