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From: Zubin Mithra <zsm@chromium.org>
To: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, x86@kernel.org
Cc: linux-kernel@vger.kernel.org, groeck@chromium.org,
	keescook@chromium.org, zsm@chromium.org
Subject: [PATCH] perf/pt: Annotate pt_cap_group with __ro_after_init
Date: Wed, 12 Sep 2018 09:45:10 -0700
Message-ID: <20180912164510.23444-1-zsm@chromium.org> (raw)

pt_cap_group is written to in pt_pmu_hw_init and not modified after. This makes
it a suitable candidate for annotating as __ro_after_init.

Signed-off-by: Zubin Mithra <zsm@chromium.org>
---
 arch/x86/events/intel/pt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/events/intel/pt.c b/arch/x86/events/intel/pt.c
index 8d016ce5b80d..3a0aa83cbd07 100644
--- a/arch/x86/events/intel/pt.c
+++ b/arch/x86/events/intel/pt.c
@@ -95,7 +95,7 @@ static ssize_t pt_cap_show(struct device *cdev,
 	return snprintf(buf, PAGE_SIZE, "%x\n", pt_cap_get(cap));
 }
 
-static struct attribute_group pt_cap_group = {
+static struct attribute_group pt_cap_group __ro_after_init = {
 	.name	= "caps",
 };
 
-- 
2.18.0.597.ga71716f1ad-goog


             reply index

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-12 16:45 Zubin Mithra [this message]
2018-09-12 16:50 ` Guenter Roeck
2018-09-12 21:27 ` [tip:perf/core] perf/x86/intel/pt: Annotate 'pt_cap_group' " tip-bot for Zubin Mithra

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