Re: [PATCH v2] KVM: selftests: Replace ulong with unsigned long

[Hisam Mehboob <hisamshar@gmail.com>]

On 8/18/26 21:27, Sean Christopherson wrote:

> Oh, so on top of "https://github.com/kvm-x86/linux.git next", this *is* the last
> blocker?  If so, then I'll grab this for 7.3.

Not quite -- I tested kvm-x86/next + this patch with musl-gcc, and the
build still fails. On top of the steal_time fix already in your tree,
two more musl blockers remain, both from code that is only in
kvm-x86/next so far:

1. hardware_disable_test.c, from 496779b54943 ("Pre-set threads affinity
    in hardware disable test when possible"):

      hardware_disable_test.c:75: error: implicit declaration of function
      'pthread_attr_setaffinity_np'

    The call sits under #ifdef _GNU_SOURCE, but lib.mk defines _GNU_SOURCE
    unconditionally, so the path is always taken and musl (which lacks the
    function) breaks.

2. The libvfio wiring from a262fc49e0aa ("Build and link
    selftests/vfio/lib into KVM selftests"):

      vfio_pci_device.c:25: fatal error: uuid/uuid.h: No such file or 
directory
      sysfs.c:31: error: implicit declaration of function 'basename'

    The former adds a hard libuuid dependency (its headers aren't visible
    to musl-gcc here); the latter because musl declares basename only in
    <libgen.h>, while glibc exposes it via <string.h> under _GNU_SOURCE.

The rseq __GNUC_PREREQ failure is already covered by my patch in
linux-next. With the above sorted, the musl build passes.