Hello,

Thanks for the report!

On Wed, Aug 13, 2025 at 02:50:49PM +0200, Greg Kroah-Hartman wrote:

On Wed, Aug 13, 2025 at 05:46:26PM +0530, Naresh Kamboju wrote:

quoted

Long story:
1)
The perf gcc-13 build failed on x86_64 and i386.

Build regression: qemu-arm64 ARM64_64K_PAGES ltp syscalls swap fsync
fallocate failed.

quoted

Ian Rogers [off-list ref]
    perf topdown: Use attribute to see an event is a topdown metic or slots

Build error:

arch/x86/tests/topdown.c: In function 'event_cb':
arch/x86/tests/topdown.c:53:25: error: implicit declaration of
function 'pr_debug' [-Werror=implicit-function-declaration]
   53 |                         pr_debug("Broken topdown information
for '%s'\n", evsel__name(evsel));
      |                         ^~~~~~~~
cc1: all warnings being treated as errors

Already fixed.

Are you sure?  I'm not seeing the fix.  Can you share the commit id?

I don't see the failure on my machine with gcc 14 but I also cannot
find what's the fix.

Thanks,
Namhyung