freebsd-src/sys
Zhenlei Huang 2439ae9483 mlx4, mlx5: Eliminate redundent NULL check for packet filter
mlx4 and mlx5 are Ethernet devices and ether_ifattach() does an
unconditional bpfattach(). From commit 16d878cc99 [1] and on, we
should not check ifp->if_bpf to tell us whether or not we have any bpf
peers that might be interested in receiving packets. And since commit
2b9600b449 [2], ifp->if_bpf can not be NULL even after the network
interface has been detached.

No functional change intended.

1. 16d878cc99 Fix the following bpf(4) race condition which can result in a panic
2. 2b9600b449 Add dead_bpf_if structure, that should be used as fake bpf_if during ifnet detach

Reviewed by:	kp, kib
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D45196
2024-05-28 12:46:04 +08:00
..
amd64 Adjust comments referencing vm_mem_init() 2024-05-27 18:37:40 -03:00
arm Adjust comments referencing vm_mem_init() 2024-05-27 18:37:40 -03:00
arm64 Adjust comments referencing vm_mem_init() 2024-05-27 18:37:40 -03:00
bsm
cam cam: Drop periph lock when completing I/O with ENOMEM status 2024-05-24 08:32:04 -06:00
cddl Revert "dtrace: make 'ring' and 'fill' policies imply 'noswitch' flag" 2024-04-21 15:17:08 +03:00
compat LinuxKPI: 802.11: lock MO tx/wake_tx_queue() downcalls 2024-05-23 23:43:29 +00:00
conf uma: Deduplicate uma_small_alloc 2024-05-25 19:24:46 +02:00
contrib zfs: Update use of UMA-related symbols in arc_available_memory 2024-05-27 15:47:17 +02:00
crypto
ddb
dev mlx4, mlx5: Eliminate redundent NULL check for packet filter 2024-05-28 12:46:04 +08:00
dts dts: Bump the freebsd branding version to 6.8 2024-05-06 10:47:26 +02:00
fs tmpfs_node_init: use MTX_NEW on lock from uninitialized memory 2024-05-26 10:20:52 -07:00
gdb
geom geom_io: Shift to pause_sbt to eliminate bogus min and update comment. 2024-05-24 08:31:55 -06:00
gnu
i386 Adjust comments referencing vm_mem_init() 2024-05-27 18:37:40 -03:00
isa
kern Adjust comments referencing vm_mem_init() 2024-05-27 18:37:40 -03:00
kgssapi
libkern
modules ipfw: don't build the module if INET not in kernel 2024-05-24 22:21:24 -06:00
net if_vlan: handle VID conflicts 2024-05-22 09:08:02 +02:00
net80211 net80211: add initial key management suites from 802.11-2016, APIs to register them 2024-05-14 14:39:33 -07:00
netgraph ng_pipe: Do not panic when memory allocations fail 2024-04-24 08:44:50 -04:00
netinet tcp: fix sending RST after second inp lookup 2024-05-25 19:58:48 +02:00
netinet6 in6_rmx: remove unnecessary socketvar.h 2024-05-07 14:15:56 -07:00
netipsec libipsec: make const-correct 2024-04-22 22:36:34 -06:00
netlink netlink: Fix C++ compile errors 2024-05-24 22:31:42 -06:00
netpfil pf: always mark states as unlinked before detaching them 2024-05-08 13:19:05 +02:00
netsmb
nfs
nfsclient
nfsserver
nlm
ofed
opencrypto
powerpc Adjust comments referencing vm_mem_init() 2024-05-27 18:37:40 -03:00
riscv Adjust comments referencing vm_mem_init() 2024-05-27 18:37:40 -03:00
rpc svc.c: Check for a non-NULL xp_socket 2024-05-27 19:22:04 -07:00
security MAC/do: allow to call setuid if real user id is 0 2024-05-23 12:09:11 +02:00
sys vt/sc: retire logic to select vt(4) by default for UEFI boot 2024-05-25 11:00:35 -04:00
teken
tests
tools
ufs uio: Use switch statements when handling UIO_READ vs UIO_WRITE 2024-05-10 13:43:36 -07:00
vm Adjust comments referencing vm_mem_init() 2024-05-27 18:37:40 -03:00
x86 x86/iommu: extract useful utilities into x86_iommu.c 2024-05-25 08:32:01 +03:00
xdr
xen
Makefile
README.md

FreeBSD Kernel Source:

This directory contains the source files and build glue that make up the FreeBSD kernel and its modules, including both original and contributed software.

Kernel configuration files are located in the conf/ subdirectory of each architecture. GENERIC is the configuration used in release builds. NOTES contains documentation of all possible entries. LINT is a compile-only configuration used to maximize build coverage and detect regressions.

Documentation:

Source code documentation is maintained in a set of man pages, under section 9. These pages are located in share/man/man9, from the top-level of the src tree. Consult intro(9) for an overview of existing pages.

Some additional high-level documentation of the kernel is maintained in the Architecture Handbook.

Source Roadmap:

Directory Description
amd64 AMD64 (64-bit x86) architecture support
arm 32-bit ARM architecture support
arm64 64-bit ARM (AArch64) architecture support
cam Common Access Method storage subsystem - cam(4) and ctl(4)
cddl CDDL-licensed optional sources such as DTrace
conf kernel build glue
compat Linux compatibility layer, FreeBSD 32-bit compatibility
contrib 3rd-party imported software such as OpenZFS
crypto crypto drivers
ddb interactive kernel debugger - ddb(4)
fs most filesystems, excluding UFS, NFS, and ZFS
dev device drivers and other arch independent code
gdb kernel remote GDB stub - gdb(4)
geom GEOM framework - geom(4)
i386 i386 (32-bit x86) architecture support
kern main part of the kernel
libkern libc-like and other support functions for kernel use
modules kernel module infrastructure
net core networking code
net80211 wireless networking (IEEE 802.11) - net80211(4)
netgraph graph-based networking subsystem - netgraph(4)
netinet IPv4 protocol implementation - inet(4)
netinet6 IPv6 protocol implementation - inet6(4)
netipsec IPsec protocol implementation - ipsec(4)
netpfil packet filters - ipfw(4), pf(4), and ipfilter(4)
opencrypto OpenCrypto framework - crypto(7)
powerpc PowerPC/POWER (32 and 64-bit) architecture support
riscv 64-bit RISC-V architecture support
security security facilities - audit(4) and mac(4)
sys kernel headers
tests kernel unit tests
ufs Unix File System - ffs(7)
vm virtual memory system
x86 code shared by AMD64 and i386 architectures