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lockdep: Fix -Wunused-parameter for _THIS_IP_

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[ Upstream commit 8b023accc8df70e72f7704d29fead7ca914d6837 ]

While looking into a bug related to the compiler's handling of addresses
of labels, I noticed some uses of _THIS_IP_ seemed unused in lockdep.
Drive by cleanup.

-Wunused-parameter:
kernel/locking/lockdep.c:1383:22: warning: unused parameter 'ip'
kernel/locking/lockdep.c:4246:48: warning: unused parameter 'ip'
kernel/locking/lockdep.c:4844:19: warning: unused parameter 'ip'

Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Waiman Long <longman@redhat.com>
Link: https://lore.kernel.org/r/20220314221909.2027027-1-ndesaulniers@google.com
Stable-dep-of: 54c3931957f6 ("tracing: hold caller_addr to hardirq_{enable,disable}_ip")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Nick Desaulniers
2022-03-14 15:19:03 -07:00
committed by Greg Kroah-Hartman
parent dee782da39
commit f9571a9699
8 changed files with 22 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
arch/arm64/kernel/entry-common.c
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@@ -72,7 +72,7 @@ static __always_inline void __exit_to_kernel_mode(struct pt_regs *regs)
if (interrupts_enabled(regs)) {
if (regs->exit_rcu) {
trace_hardirqs_on_prepare();
lockdep_hardirqs_on_prepare(CALLER_ADDR0);
lockdep_hardirqs_on_prepare();
rcu_irq_exit();
lockdep_hardirqs_on(CALLER_ADDR0);
return;
@@ -117,7 +117,7 @@ static __always_inline void enter_from_user_mode(struct pt_regs *regs)
static __always_inline void __exit_to_user_mode(void)
{
trace_hardirqs_on_prepare();
lockdep_hardirqs_on_prepare(CALLER_ADDR0);
lockdep_hardirqs_on_prepare();
user_enter_irqoff();
lockdep_hardirqs_on(CALLER_ADDR0);
}
@@ -175,7 +175,7 @@ static void noinstr arm64_exit_nmi(struct pt_regs *regs)
ftrace_nmi_exit();
if (restore) {
trace_hardirqs_on_prepare();
lockdep_hardirqs_on_prepare(CALLER_ADDR0);
lockdep_hardirqs_on_prepare();
}
rcu_nmi_exit();
@@ -211,7 +211,7 @@ static void noinstr arm64_exit_el1_dbg(struct pt_regs *regs)
if (restore) {
trace_hardirqs_on_prepare();
lockdep_hardirqs_on_prepare(CALLER_ADDR0);
lockdep_hardirqs_on_prepare();
}
rcu_nmi_exit();