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Date: Mon, 15 Jun 2015 15:33:52 +0200
From: Ingo Tuchscherer <ingo.tuchscherer@...ibm.com>
To: Vaishali Thakkar <vthakkar1994@...il.com>
Cc: BOEBLINGEN LINUX390 <LINUX390@...ibm.com>,
heicars2@...ux.vnet.ibm.com, Julia Lawall <julia.lawall@...6.fr>,
linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org,
mschwid2@...ux.vnet.ibm.com
Subject: Re: [PATCH] s390/zcrypt: Convert use of __constant_cpu_to_le16 to
cpu_to_le16
Thanks for bringing up.
I pushed the patch into our internal repository, it will be upstream soon.
Mit freundlichen Grüßen / Kind regards
Ingo Tuchscherer
Software Development - Linux on z Systems
IBM Systems &Technology Group
Phone: +49-7031-16-1986 IBM Deutschland (Embedded
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E-Mail: ingo.tuchscherer@...ibm.com Schoenaicher Str. 220
71032 Boeblingen
Germany
IBM Deutschland
Research &
Development
GmbH /
Vorsitzender des
Aufsichtsrats:
Martina Koederitz
Geschäftsführung:
Dirk Wittkopp
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Gesellschaft:
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Registergericht:
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Stuttgart, HRB
243294
From: Vaishali Thakkar <vthakkar1994@...il.com>
To: Ingo Tuchscherer/Germany/IBM@...DE
Cc: BOEBLINGEN LINUX390/Germany/IBM@...DE,
mschwid2@...ux.vnet.ibm.com, heicars2@...ux.vnet.ibm.com,
linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org, Julia
Lawall <julia.lawall@...6.fr>
Date: 06/10/2015 01:01 PM
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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