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| author | Jiri Kosina <jkosina@suse.cz> | 2017-05-02 11:02:41 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2017-05-02 11:02:41 +0200 |
| commit | 4d6ca227c768b50b05cf183974b40abe444e9d0c (patch) | |
| tree | bf953d8e895281053548b9967a2c4b58d641df00 /drivers/s390/char/sclp.c | |
| parent | 800f3eef8ebc1264e9c135bfa892c8ae41fa4792 (diff) | |
| parent | af22a610bc38508d5ea760507d31be6b6983dfa8 (diff) | |
Merge branch 'for-4.12/asus' into for-linus
Diffstat (limited to 'drivers/s390/char/sclp.c')
| -rw-r--r-- | drivers/s390/char/sclp.c | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c index 272898225dbb..9c471ea1b99c 100644 --- a/drivers/s390/char/sclp.c +++ b/drivers/s390/char/sclp.c @@ -94,13 +94,6 @@ static struct timer_list sclp_request_timer; /* Timer for queued requests. */ static struct timer_list sclp_queue_timer; -/* Internal state: is the driver initialized? */ -static volatile enum sclp_init_state_t { - sclp_init_state_uninitialized, - sclp_init_state_initializing, - sclp_init_state_initialized -} sclp_init_state = sclp_init_state_uninitialized; - /* Internal state: is a request active at the sclp? */ static volatile enum sclp_running_state_t { sclp_running_state_idle, @@ -147,31 +140,6 @@ static void __sclp_make_read_req(void); static int sclp_init_mask(int calculate); static int sclp_init(void); -/* Perform service call. Return 0 on success, non-zero otherwise. */ -int -sclp_service_call(sclp_cmdw_t command, void *sccb) -{ - int cc = 4; /* Initialize for program check handling */ - - asm volatile( - "0: .insn rre,0xb2200000,%1,%2\n" /* servc %1,%2 */ - "1: ipm %0\n" - " srl %0,28\n" - "2:\n" - EX_TABLE(0b, 2b) - EX_TABLE(1b, 2b) - : "+&d" (cc) : "d" (command), "a" (__pa(sccb)) - : "cc", "memory"); - if (cc == 4) - return -EINVAL; - if (cc == 3) - return -EIO; - if (cc == 2) - return -EBUSY; - return 0; -} - - static void __sclp_queue_read_req(void) { |