linux-kernel - [RFC PATCH 06/12] security/keys: Use iovec_import() instead of import

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Message-ID: <94adff930f134d77acc3b394b0fedf77@AcuMS.aculab.com>
Date:   Tue, 31 Mar 2020 13:52:08 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: [RFC PATCH 06/12] security/keys: Use iovec_import() instead of
 import_iovec().

Signed-off-by: David Laight <david.laight@...lab.com>
---
 security/keys/compat.c | 11 +++++------
 security/keys/keyctl.c | 10 +++++-----
 2 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/security/keys/compat.c b/security/keys/compat.c
index b975f8f..178412a 100644
--- a/security/keys/compat.c
+++ b/security/keys/compat.c
@@ -26,18 +26,17 @@ static long compat_keyctl_instantiate_key_iov(
 	unsigned ioc,
 	key_serial_t ringid)
 {
-	struct iovec iovstack[UIO_FASTIOV], *iov = iovstack;
+	struct iovec_cache cache;
 	struct iov_iter from;
+	struct iovec *iov;
 	long ret;
 
 	if (!_payload_iov)
 		ioc = 0;
 
-	ret = compat_import_iovec(WRITE, _payload_iov, ioc,
-				  ARRAY_SIZE(iovstack), &iov,
-				  &from);
-	if (ret < 0)
-		return ret;
+	iov = compat_iovec_import(WRITE, _payload_iov, ioc, &cache, &from);
+	if (IS_ERR(iov))
+		return PTR_ERR(iov);
 
 	ret = keyctl_instantiate_key_common(id, &from, ringid);
 	kfree(iov);
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index 9b898c9..e93b4e6 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -1208,17 +1208,17 @@ long keyctl_instantiate_key_iov(key_serial_t id,
 				unsigned ioc,
 				key_serial_t ringid)
 {
-	struct iovec iovstack[UIO_FASTIOV], *iov = iovstack;
+	struct iovec_cache cache;
 	struct iov_iter from;
+	struct iovec *iov;
 	long ret;
 
 	if (!_payload_iov)
 		ioc = 0;
 
-	ret = import_iovec(WRITE, _payload_iov, ioc,
-				    ARRAY_SIZE(iovstack), &iov, &from);
-	if (ret < 0)
-		return ret;
+	iov = iovec_import(WRITE, _payload_iov, ioc, &cache, &from);
+	if (IS_ERR(iov))
+		return PTR_ERR(iov);
 	ret = keyctl_instantiate_key_common(id, &from, ringid);
 	kfree(iov);
 	return ret;
-- 
1.8.1.2

-
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