Hi Rafael,

After merging the pm tree, today's linux-next build (x86_64 allmodconfig)
produced this warning:

drivers/acpi/acpi_dbg.c: In function 'acpi_aml_init':
drivers/acpi/acpi_dbg.c:774:1: warning: label 'err_exit' defined but not used [-Wunused-label]
 err_exit:
 ^~~~~~~~

Introduced by commit

  9ec6dbfbdc0a ("ACPI: no need to check return value of debugfs_create functions")

-- 
Cheers,
Stephen Rothwell