Subject: linux-next: build warning after merge of the pm tree

From: Stephen Rothwell <[email-masked]>
Date: Wed, 27 Jan 2021 12:43:24 +1100

Hi all,

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

In file included from include/linux/printk.h:7,
                 from include/linux/kernel.h:16,
                 from include/linux/list.h:9,
                 from include/linux/kobject.h:19,
                 from include/linux/of.h:17,
                 from include/linux/irqdomain.h:35,
                 from include/linux/acpi.h:13,
                 from drivers/acpi/acpi_fpdt.c:11:
drivers/acpi/acpi_fpdt.c: In function 'acpi_init_fpdt':
include/linux/kern_levels.h:5:18: warning: too many arguments for format [-Wformat-extra-args]
    5 | #define KERN_SOH "\001"  /* ASCII Start Of Header */
      |                  ^~~~~~
include/linux/kern_levels.h:14:19: note: in expansion of macro 'KERN_SOH'
   14 | #define KERN_INFO KERN_SOH "6" /* informational */
      |                   ^~~~~~~~
include/linux/printk.h:373:9: note: in expansion of macro 'KERN_INFO'
  373 |  printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
      |         ^~~~~~~~~
drivers/acpi/acpi_fpdt.c:255:4: note: in expansion of macro 'pr_info'
  255 |    pr_info(FW_BUG, "Invalid subtable type %d found.\n",
      |    ^~~~~~~

Introduced by commit

  208757d71098 ("ACPI: tables: introduce support for FPDT table")

-- 
Cheers,
Stephen Rothwell