linux/arch/ia64/Kconfig.debug
Randy Dunlap c15b5fc054 ia64: don't do IA64_CMPXCHG_DEBUG without CONFIG_PRINTK
When CONFIG_PRINTK is not set, the CMPXCHG_BUGCHECK() macro calls
_printk(), but _printk() is a static inline function, not available
as an extern.
Since the purpose of the macro is to print the BUGCHECK info,
make this config option depend on PRINTK.

Fixes multiple occurrences of this build error:

../include/linux/printk.h:208:5: error: static declaration of '_printk' follows non-static declaration
  208 | int _printk(const char *s, ...)
      |     ^~~~~~~
In file included from ../arch/ia64/include/asm/cmpxchg.h:5,
../arch/ia64/include/uapi/asm/cmpxchg.h:146:28: note: previous declaration of '_printk' with type 'int(const char *, ...)'
  146 |                 extern int _printk(const char *fmt, ...);

Cc: linux-ia64@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Chris Down <chris@chrisdown.name>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Petr Mladek <pmladek@suse.com>
2021-10-04 10:45:58 +02:00

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# SPDX-License-Identifier: GPL-2.0
choice
prompt "Physical memory granularity"
default IA64_GRANULE_64MB
config IA64_GRANULE_16MB
bool "16MB"
help
IA-64 identity-mapped regions use a large page size called "granules".
Select "16MB" for a small granule size.
Select "64MB" for a large granule size. This is the current default.
config IA64_GRANULE_64MB
bool "64MB"
depends on BROKEN
endchoice
config IA64_PRINT_HAZARDS
bool "Print possible IA-64 dependency violations to console"
depends on DEBUG_KERNEL
help
Selecting this option prints more information for Illegal Dependency
Faults, that is, for Read-after-Write (RAW), Write-after-Write (WAW),
or Write-after-Read (WAR) violations. This option is ignored if you
are compiling for an Itanium A step processor
(CONFIG_ITANIUM_ASTEP_SPECIFIC). If you're unsure, select Y.
config DISABLE_VHPT
bool "Disable VHPT"
depends on DEBUG_KERNEL
help
The Virtual Hash Page Table (VHPT) enhances virtual address
translation performance. Normally you want the VHPT active but you
can select this option to disable the VHPT for debugging. If you're
unsure, answer N.
config IA64_DEBUG_CMPXCHG
bool "Turn on compare-and-exchange bug checking (slow!)"
depends on DEBUG_KERNEL && PRINTK
help
Selecting this option turns on bug checking for the IA-64
compare-and-exchange instructions. This is slow! Itaniums
from step B3 or later don't have this problem. If you're unsure,
select N.
config IA64_DEBUG_IRQ
bool "Turn on irq debug checks (slow!)"
depends on DEBUG_KERNEL
help
Selecting this option turns on bug checking for the IA-64 irq_save
and restore instructions. It's useful for tracking down spinlock
problems, but slow! If you're unsure, select N.