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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Dan Williams <dan.j.williams@intel.com>,
	linux-nvdimm@lists.01.org, linux-acpi@vger.kernel.org,
	linux-kernel@vger.kernel.org
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Len Brown <lenb@kernel.org>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: [PATCH v1 1/1] ACPI: NFIT: Import GUID before use
Date: Thu, 15 Apr 2021 16:59:01 +0300	[thread overview]
Message-ID: <20210415135901.47131-1-andriy.shevchenko@linux.intel.com> (raw)

Strictly speaking the comparison between guid_t and raw buffer
is not correct. Import GUID to variable of guid_t type and then
compare.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/acpi/nfit/core.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index 958aaac869e8..6d8a1a93636a 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -678,10 +678,12 @@ static const char *spa_type_name(u16 type)
 
 int nfit_spa_type(struct acpi_nfit_system_address *spa)
 {
+	guid_t guid;
 	int i;
 
+	import_guid(&guid, spa->range_guid);
 	for (i = 0; i < NFIT_UUID_MAX; i++)
-		if (guid_equal(to_nfit_uuid(i), (guid_t *)&spa->range_guid))
+		if (guid_equal(to_nfit_uuid(i), &guid))
 			return i;
 	return -1;
 }
-- 
2.30.2
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             reply	other threads:[~2021-04-15 13:58 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-15 13:59 Andy Shevchenko [this message]
2021-04-16  5:17 ` [PATCH v1 1/1] ACPI: NFIT: Import GUID before use Dan Williams
     [not found]   ` <CAHp75VcpQREYFesS9q2TeqrR29hf0CvMESM42AVGAFzEYeRr_Q@mail.gmail.com>
2021-04-16 16:15     ` Dan Williams
2021-04-16 17:33       ` Andy Shevchenko
2021-04-16 18:04         ` Dan Williams

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