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xtensa: hw_breakpoint: include header for missing prototype

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Add the prototype for restore_dbreak() to <asm/hw_breakpoint.h> and use
that header in hw_breakpoint.c to prevent a build warning:

arch/xtensa/kernel/hw_breakpoint.c:263:6: warning: no previous prototype for 'restore_dbreak' [-Wmissing-prototypes]
  263 | void restore_dbreak(void)

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Message-Id: <20230920052139.10570-12-rdunlap@infradead.org>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
This commit is contained in:
Randy Dunlap 2023-09-19 22:21:34 -07:00 committed by Max Filippov
parent 0f95df6246
commit 2e413b1ebc
2 changed files with 2 additions and 0 deletions
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1
arch/xtensa/include/asm/hw_breakpoint.h
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@ -48,6 +48,7 @@ void arch_uninstall_hw_breakpoint(struct perf_event *bp);
void hw_breakpoint_pmu_read(struct perf_event *bp);
int check_hw_breakpoint(struct pt_regs *regs);
void clear_ptrace_hw_breakpoint(struct task_struct *tsk);
void restore_dbreak(void);
#else

1
arch/xtensa/kernel/hw_breakpoint.c
View File

@ -13,6 +13,7 @@
#include <linux/percpu.h>
#include <linux/perf_event.h>
#include <asm/core.h>
#include <asm/hw_breakpoint.h>
/* Breakpoint currently in use for each IBREAKA. */
static DEFINE_PER_CPU(struct perf_event *, bp_on_reg[XCHAL_NUM_IBREAK]);