[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [linus:master] [x86/entry] be5341eb0d: WARNING:CPU:#PID:#at_int80_emulation
On Tue, 19 Dec 2023 at 12:17, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxx> wrote: > > That said, I still think that just getting rid of this horrid special > case for posix timers is the right thing, and we should just remove > that SYS_NI() alias thing entirely. IOW, something like the attached patch. It's not extensively tested, but hey, the diffstat looks nice: arch/arm64/include/asm/syscall_wrapper.h | 4 --- arch/riscv/include/asm/syscall_wrapper.h | 5 ---- arch/s390/include/asm/syscall_wrapper.h | 13 +-------- arch/x86/include/asm/syscall_wrapper.h | 34 +++--------------------- kernel/sys_ni.c | 14 ++++++++++ kernel/time/posix-stubs.c | 45 -------------------------------- 6 files changed, 19 insertions(+), 96 deletions(-) and it builds in at least a *couple* of configurations, including with CONFIG_POSIX_TIMERS disabled. I did *not* check whether it might fix the warning, since I doubt my user space would even boot without that posix timer support (actually, honestly, because I'm just lazy and "it _looks_ fine to me" was the main real thing). But that SYS_NI() thing really does deserve to die, as it was purely used as a hack for some random timer system calls. Comments? Linus Attachment:
patch.diff
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