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Message-ID: <20150610110144.GA3249@vaishali-Ideapad-Z570>
Date: Wed, 10 Jun 2015 16:31:44 +0530
From: Vaishali Thakkar <vthakkar1994@...il.com>
To: Ingo Tuchscherer <ingo.tuchscherer@...ibm.com>
Cc: linux390@...ibm.com, Martin Schwidefsky <schwidefsky@...ibm.com>,
Heiko Carstens <heiko.carstens@...ibm.com>,
linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org,
Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH] s390/zcrypt: Convert use of __constant_cpu_to_le16 to
cpu_to_le16
In big endian cases, the macro cpu_to_le16 unfolds to __swab16
which provides special case for constants. In little endian cases,
__constant_cpu_to_le16 and cpu_to_le16 expand directly to the
same expression. So, replace __constant_cpu_to_le16 with
cpu_to_le16 with the goal of getting rid of the definition of
__constant_cpu_to_le16 completely.
The semantic patch that performs this transformation is as follows:
@@expression x;@@
- __constant_cpu_to_le16(x)
+ cpu_to_le16(x)
Signed-off-by: Vaishali Thakkar <vthakkar1994@...il.com>
---
drivers/s390/crypto/zcrypt_pcicc.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/s390/crypto/zcrypt_pcicc.c b/drivers/s390/crypto/zcrypt_pcicc.c
index 4d14c04..9f18876 100644
--- a/drivers/s390/crypto/zcrypt_pcicc.c
+++ b/drivers/s390/crypto/zcrypt_pcicc.c
@@ -98,11 +98,11 @@ static struct ap_driver zcrypt_pcicc_driver = {
* - VUD block
*/
static struct CPRB static_cprb = {
- .cprb_len = __constant_cpu_to_le16(0x0070),
+ .cprb_len = cpu_to_le16(0x0070),
.cprb_ver_id = 0x41,
.func_id = {0x54,0x32},
.checkpoint_flag= 0x01,
- .svr_namel = __constant_cpu_to_le16(0x0008),
+ .svr_namel = cpu_to_le16(0x0008),
.svr_name = {'I','C','S','F',' ',' ',' ',' '}
};
@@ -164,7 +164,7 @@ static int ICAMEX_msg_to_type6MEX_msg(struct zcrypt_device *zdev,
};
static struct function_and_rules_block static_pke_function_and_rules ={
.function_code = {'P','K'},
- .ulen = __constant_cpu_to_le16(10),
+ .ulen = cpu_to_le16(10),
.only_rule = {'P','K','C','S','-','1','.','2'}
};
struct {
@@ -251,7 +251,7 @@ static int ICACRT_msg_to_type6CRT_msg(struct zcrypt_device *zdev,
};
static struct function_and_rules_block static_pkd_function_and_rules ={
.function_code = {'P','D'},
- .ulen = __constant_cpu_to_le16(10),
+ .ulen = cpu_to_le16(10),
.only_rule = {'P','K','C','S','-','1','.','2'}
};
struct {
--
1.9.1
--
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