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kprobe/static_call: Restore missing static_call_text_reserved()
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[ Upstream commit fa68bd0 ]

Restore two hunks from commit:

  6333e8f ("static_call: Avoid kprobes on inline static_call()s")

that went walkabout in a Git merge commit.

Fixes: 76d4acf ("Merge tag 'perf-kprobes-2020-12-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Link: https://lore.kernel.org/r/20210628113045.167127609@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Peter Zijlstra authored and gregkh committed Jul 20, 2021
1 parent 80f7559 commit 1dc6cd7
Showing 1 changed file with 2 additions and 0 deletions.
2 changes: 2 additions & 0 deletions kernel/kprobes.c
Expand Up @@ -35,6 +35,7 @@
#include <linux/ftrace.h>
#include <linux/cpu.h>
#include <linux/jump_label.h>
#include <linux/static_call.h>
#include <linux/perf_event.h>

#include <asm/sections.h>
Expand Down Expand Up @@ -1569,6 +1570,7 @@ static int check_kprobe_address_safe(struct kprobe *p,
if (!kernel_text_address((unsigned long) p->addr) ||
within_kprobe_blacklist((unsigned long) p->addr) ||
jump_label_text_reserved(p->addr, p->addr) ||
static_call_text_reserved(p->addr, p->addr) ||
find_bug((unsigned long)p->addr)) {
ret = -EINVAL;
goto out;
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