kernel/printk/printk.c:2131:14: error: conflicting types for 'printk_delay_msec'; have 'unsigned int'

kernel/printk/printk.c:2131:14: error: conflicting types for 'printk_delay_msec'; have 'unsigned int'

[kernel test robot]

tree:   https://github.com/intel-lab-lkp/linux/commits/Andrew-Murray/printk-remove-BOOT_PRINTK_DELAY-config-option/20260701-004359
head:   77bdeadc30ea25978d2e590405710ebc1c3ceee8
commit: 9723ebd13ec9e050081c95baace694bdea02bbae printk: deprecate boot_delay in favour of printk_delay
date:   5 days ago
config: x86_64-rhel-9.4-func (https://download.01.org/0day-ci/archive/20260706/202607060458.o2DoPl4f-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260706/202607060458.o2DoPl4f-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202607060458.o2DoPl4f-lkp@intel.com/

All errors (new ones prefixed by >>):

>> kernel/printk/printk.c:2131:14: error: conflicting types for 'printk_delay_msec'; have 'unsigned int'
    2131 | unsigned int printk_delay_msec __read_mostly;
         |              ^~~~~~~~~~~~~~~~~
   In file included from include/asm-generic/bug.h:31,
                    from arch/x86/include/asm/bug.h:195,
                    from arch/x86/include/asm/alternative.h:9,
                    from arch/x86/include/asm/barrier.h:5,
                    from include/asm-generic/bitops/generic-non-atomic.h:7,
                    from include/linux/bitops.h:28,
                    from include/linux/kernel.h:23,
                    from kernel/printk/printk.c:22:
   include/linux/printk.h:191:12: note: previous declaration of 'printk_delay_msec' with type 'int'
     191 | extern int printk_delay_msec;
         |            ^~~~~~~~~~~~~~~~~


vim +2131 kernel/printk/printk.c

  2122	
  2123	/* Exit recursion tracking, restoring interrupts. */
  2124	#define printk_exit_irqrestore(recursion_ptr, flags)	\
  2125		do {						\
  2126			typecheck(u8 *, recursion_ptr);		\
  2127			(*(recursion_ptr))--;			\
  2128			local_irq_restore(flags);		\
  2129		} while (0)
  2130	
> 2131	unsigned int printk_delay_msec __read_mostly;
  2132	

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