+ s390-traps-only-define-is_valid_bugaddr-under-config_generic_bug.patch added to mm-nonmm-unstable branch

+ s390-traps-only-define-is_valid_bugaddr-under-config_generic_bug.patch added to mm-nonmm-unstable branch

[Andrew Morton]

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The patch titled
     Subject: s390/traps: only define is_valid_bugaddr() under CONFIG_GENERIC_BUG
has been added to the -mm mm-nonmm-unstable branch.  Its filename is
     s390-traps-only-define-is_valid_bugaddr-under-config_generic_bug.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/s390-traps-only-define-is_valid_bugaddr-under-config_generic_bug.patch

This patch will later appear in the mm-nonmm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Nathan Chancellor <nathan@kernel.org>
Subject: s390/traps: only define is_valid_bugaddr() under CONFIG_GENERIC_BUG
Date: Thu, 30 Nov 2023 17:22:33 -0700

When building with -Wmissing-prototypes without CONFIG_GENERIC_BUG, there
is a warning about a missing prototype for is_valid_bugaddr():

  arch/s390/kernel/traps.c:46:5: warning: no previous prototype for 'is_valid_bugaddr' [-Wmissing-prototypes]
     46 | int is_valid_bugaddr(unsigned long addr)
        |     ^~~~~~~~~~~~~~~~

The prototype is only declared with CONFIG_GENERIC_BUG, so only define the
function under the same condition to clear up the warning, which matches
other architectures.

Link: https://lkml.kernel.org/r/20231130-s390-missing-prototypes-v1-2-799d3cf07fb7@kernel.org
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Jan Höppner <hoeppner@linux.ibm.com>
Cc: Stefan Haberland <sth@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/s390/kernel/traps.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/arch/s390/kernel/traps.c~s390-traps-only-define-is_valid_bugaddr-under-config_generic_bug
+++ a/arch/s390/kernel/traps.c
@@ -43,10 +43,12 @@ static inline void __user *get_trap_ip(s
 	return (void __user *) (address - (regs->int_code >> 16));
 }
 
+#ifdef CONFIG_GENERIC_BUG
 int is_valid_bugaddr(unsigned long addr)
 {
 	return 1;
 }
+#endif
 
 void do_report_trap(struct pt_regs *regs, int si_signo, int si_code, char *str)
 {
_

Patches currently in -mm which might be from nathan@kernel.org are

buffer-fix-grow_buffers-for-block-size-page_size-fix.patch
hexagon-uaccess-remove-clear_user_hexagon.patch
hexagon-mm-mark-paging_init-as-static.patch
hexagon-mm-include-asm-setuph-for-setup_arch_memorys-prototype.patch
hexagon-smp-mark-handle_ipi-and-start_secondary-as-static.patch
hexagon-vm_fault-mark-do_page_fault-as-static.patch
hexagon-vm_fault-include-asm-vm_faulth-for-prototypes.patch
hexagon-vm_tlb-include-asm-tlbflushh-for-prototypes.patch
hexagon-time-include-asm-timeh-for-prototypes.patch
hexagon-time-mark-time_init_deferred-as-static.patch
hexagon-time-include-asm-delayh-for-prototypes.patch
hexagon-signal-switch-to-syscall_define0-for-sys_rt_sigreturn.patch
hexagon-reset-include-linux-rebooth-for-prototypes.patch
hexagon-process-include-linux-cpuh-for-arch_cpu_idle-prototype.patch
hexagon-process-add-internal-prototype-for-do_work_pending.patch
hexagon-vdso-include-asm-elfh-for-arch_setup_additional_pages-prototype.patch
hexagon-vm_events-remove-unused-dummy_handler.patch
hexagon-irq-add-prototype-for-arch_do_irq.patch
hexagon-traps-remove-sys_syscall.patch
hexagon-traps-add-internal-prototypes-for-functions-only-called-from-asm.patch
s390-dasd-remove-dasd_stats_generic_show.patch
s390-traps-only-define-is_valid_bugaddr-under-config_generic_bug.patch