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authorHeiko Carstens <heiko.carstens@de.ibm.com>2015-02-12 15:08:27 +0300
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2015-03-25 13:49:33 +0300
commit5a79859ae0f35d25c67a03e82bf0c80592f16a39 (patch)
tree37264d49f069812f19ced94e6ae171814fb7e498 /drivers/s390/crypto
parent1833c9f647e9bda1cd24653ff8f9c207b5f5b911 (diff)
downloadlinux-5a79859ae0f35d25c67a03e82bf0c80592f16a39.tar.xz
s390: remove 31 bit support
Remove the 31 bit support in order to reduce maintenance cost and effectively remove dead code. Since a couple of years there is no distribution left that comes with a 31 bit kernel. The 31 bit kernel also has been broken since more than a year before anybody noticed. In addition I added a removal warning to the kernel shown at ipl for 5 minutes: a960062e5826 ("s390: add 31 bit warning message") which let everybody know about the plan to remove 31 bit code. We didn't get any response. Given that the last 31 bit only machine was introduced in 1999 let's remove the code. Anybody with 31 bit user space code can still use the compat mode. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/crypto')
-rw-r--r--drivers/s390/crypto/ap_bus.c20
1 files changed, 0 insertions, 20 deletions
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index 3d7f19fb9a4e..33890c9850de 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -174,12 +174,10 @@ static int ap_interrupts_available(void)
*
* Returns 1 if AP configuration information is available.
*/
-#ifdef CONFIG_64BIT
static int ap_configuration_available(void)
{
return test_facility(2) && test_facility(12);
}
-#endif
/**
* ap_test_queue(): Test adjunct processor queue.
@@ -239,7 +237,6 @@ static inline struct ap_queue_status ap_reset_queue(ap_qid_t qid)
return reg1;
}
-#ifdef CONFIG_64BIT
/**
* ap_queue_interruption_control(): Enable interruption for a specific AP.
* @qid: The AP queue number
@@ -261,9 +258,7 @@ ap_queue_interruption_control(ap_qid_t qid, void *ind)
: "cc" );
return reg1_out;
}
-#endif
-#ifdef CONFIG_64BIT
static inline struct ap_queue_status
__ap_query_functions(ap_qid_t qid, unsigned int *functions)
{
@@ -282,9 +277,7 @@ __ap_query_functions(ap_qid_t qid, unsigned int *functions)
*functions = (unsigned int)(reg2 >> 32);
return reg1;
}
-#endif
-#ifdef CONFIG_64BIT
static inline int __ap_query_configuration(struct ap_config_info *config)
{
register unsigned long reg0 asm ("0") = 0x04000000UL;
@@ -302,7 +295,6 @@ static inline int __ap_query_configuration(struct ap_config_info *config)
return reg1;
}
-#endif
/**
* ap_query_functions(): Query supported functions.
@@ -317,7 +309,6 @@ static inline int __ap_query_configuration(struct ap_config_info *config)
*/
static int ap_query_functions(ap_qid_t qid, unsigned int *functions)
{
-#ifdef CONFIG_64BIT
struct ap_queue_status status;
int i;
status = __ap_query_functions(qid, functions);
@@ -348,9 +339,6 @@ static int ap_query_functions(ap_qid_t qid, unsigned int *functions)
}
}
return -EBUSY;
-#else
- return -EINVAL;
-#endif
}
/**
@@ -364,7 +352,6 @@ static int ap_query_functions(ap_qid_t qid, unsigned int *functions)
*/
static int ap_queue_enable_interruption(ap_qid_t qid, void *ind)
{
-#ifdef CONFIG_64BIT
struct ap_queue_status status;
int t_depth, t_device_type, rc, i;
@@ -404,9 +391,6 @@ static int ap_queue_enable_interruption(ap_qid_t qid, void *ind)
}
}
return rc;
-#else
- return -EINVAL;
-#endif
}
/**
@@ -1238,7 +1222,6 @@ static struct bus_attribute *const ap_bus_attrs[] = {
*/
static void ap_query_configuration(void)
{
-#ifdef CONFIG_64BIT
if (ap_configuration_available()) {
if (!ap_configuration)
ap_configuration =
@@ -1248,9 +1231,6 @@ static void ap_query_configuration(void)
__ap_query_configuration(ap_configuration);
} else
ap_configuration = NULL;
-#else
- ap_configuration = NULL;
-#endif
}
/**