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Bjoern A. Zeeb
d2145e9b96
drm-kmod sets CONFIG_PM (unclear if for other parts) but LinuxKPI
has no understanding of a dev->power implementation for pm_runtime.h.
The return values based on !CONFIG_PM thus cause problems to drm-kmod.
Return the previous values under CONFIG_PM but leave the TODO logging
as the actual implementation is missing and return values may not be
universally correct (beyond the known drm-kmod use cases).
The following functions having a return value but none sepcific for
CONFIG_PM as (based on drm-kmod master):
pm_runtime_resume only caller ignores the return value
pm_runtime_set_active two callers ignore the return value
pm_runtime_put_autosuspend all callers seem to ignore the return value
pm_runtime_autosuspend 2/3 callers ignore the return value;
3rd is #ifdef __linux__
pm_runtime_suspended 3/4 callers ... do check the return value
but the logic expects the false, which also
matches the previous value.
Fixes: 863fe7ae51 ("LinuxKPI: re-implement pm_runtime.h")
Reported by: markj
MFC after: 3 days
Tested by: markj, Oleg V. Nauman (oleg.nauman gmail.com)
Differential Revision: https://reviews.freebsd.org/D60878
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 |
| bsm | Basic Security Module headers - audit(4) and bsm(3) |
| cam | Common Access Method storage subsystem - cam(4) and ctl(4) |
| cddl | CDDL-licensed optional sources such as DTrace |
| compat | Linux compatibility layer, FreeBSD 32-bit compatibility |
| conf | kernel build glue |
| contrib | 3rd-party imported software such as OpenZFS |
| crypto | crypto drivers |
| ddb | interactive kernel debugger - ddb(4) |
| dev | device drivers and other arch independent code |
| dts | FreeBSD-specific device tree sources |
| fs | most filesystems, excluding UFS, NFS, and ZFS |
| gdb | kernel remote GDB stub - gdb(4) |
| geom | GEOM framework - geom(4) |
| gnu | GPL-licensed sources |
| i386 | i386 (32-bit x86) architecture support |
| isa | PC ISA bus implementation |
| kern | main part of the kernel |
| kgssapi | kernel-space GSSAPI implementation |
| 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) |
| netlink | kernel network configuration protocol - netlink(4) |
| netpfil | packet filters - ipfw(4), pf(4), and ipfilter(4) |
| netsmb | Server Message Block protocol implementation |
| nfs | common code and headers for Network File System |
| nfsclient | NFS client implementation for mounting and stats |
| nfsserver | NFS server implementation for exporting local filesystems to network |
| nlm | Network Lock Management protocol implementation |
| ofed | OpenFabrics Enterprise Distribution implementation |
| opencrypto | OpenCrypto framework - crypto(7) |
| powerpc | PowerPC/POWER (32 and 64-bit) architecture support |
| riscv | 64-bit RISC-V architecture support |
| rpc | Open Network Computing Remote Procedure Call implementation - rpc(3) |
| security | security facilities - audit(4) and mac(4) |
| sys | kernel headers |
| teken | terminal emulation interface implementation - teken(3) |
| tests | kernel unit tests |
| tools | kernel build scripts and utilities |
| ufs | Unix File System - ffs(4) |
| vm | virtual memory system |
| x86 | code shared by AMD64 and i386 architectures |
| xdr | External Data Representation implementation - xdr(3) |
| xen | Xen hypervisor support - xen(4) |