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Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6

Browse Source 
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] Fix sparse warnings.
  [S390] path grouping and path verifications fixes.
  [S390] xpram module parameter parsing.
  [S390] cpu_relax() is supposed to have barrier() semantics.
  [S390] fix futex_atomic_cmpxchg_inatomic
  [S390] subchannel register/unregister mutex.
  [S390] raw_local_save_flags/raw_local_irq_restore type check
  [S390] __builtin_trap() and gcc version.
This commit is contained in:
Linus Torvalds 2006-07-12 08:30:57 -07:00
commit b2d6744849
56 changed files with 452 additions and 282 deletions
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2
arch/s390/hypfs/hypfs_diag.c
View File

@ -403,7 +403,7 @@ static void *diag204_get_buffer(enum diag204_format fmt, int *pages)
*pages = 1;
return diag204_alloc_rbuf();
} else {/* INFO_EXT */
*pages = diag204(SUBC_RSI | INFO_EXT, 0, 0);
*pages = diag204(SUBC_RSI | INFO_EXT, 0, NULL);
if (*pages <= 0)
return ERR_PTR(-ENOSYS);
else

19
arch/s390/kernel/compat_linux.c
View File

@ -409,7 +409,7 @@ asmlinkage long sys32_sysinfo(struct sysinfo32 __user *info)
mm_segment_t old_fs = get_fs ();
set_fs (KERNEL_DS);
ret = sys_sysinfo(&s);
ret = sys_sysinfo((struct sysinfo __user *) &s);
set_fs (old_fs);
err = put_user (s.uptime, &info->uptime);
err |= __put_user (s.loads[0], &info->loads[0]);
@ -438,7 +438,7 @@ asmlinkage long sys32_sched_rr_get_interval(compat_pid_t pid,
mm_segment_t old_fs = get_fs ();
set_fs (KERNEL_DS);
ret = sys_sched_rr_get_interval(pid, &t);
ret = sys_sched_rr_get_interval(pid, (struct timespec __user *) &t);
set_fs (old_fs);
if (put_compat_timespec(&t, interval))
return -EFAULT;
@ -464,7 +464,10 @@ asmlinkage long sys32_rt_sigprocmask(int how, compat_sigset_t __user *set,
}
}
set_fs (KERNEL_DS);
ret = sys_rt_sigprocmask(how, set ? &s : NULL, oset ? &s : NULL, sigsetsize);
ret = sys_rt_sigprocmask(how,
set ? (sigset_t __user *) &s : NULL,
oset ? (sigset_t __user *) &s : NULL,
sigsetsize);
set_fs (old_fs);
if (ret) return ret;
if (oset) {
@ -489,7 +492,7 @@ asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set,
mm_segment_t old_fs = get_fs();
set_fs (KERNEL_DS);
ret = sys_rt_sigpending(&s, sigsetsize);
ret = sys_rt_sigpending((sigset_t __user *) &s, sigsetsize);
set_fs (old_fs);
if (!ret) {
switch (_NSIG_WORDS) {
@ -514,7 +517,7 @@ sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t __user *uinfo)
if (copy_siginfo_from_user32(&info, uinfo))
return -EFAULT;
set_fs (KERNEL_DS);
ret = sys_rt_sigqueueinfo(pid, sig, &info);
ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *) &info);
set_fs (old_fs);
return ret;
}
@ -674,7 +677,8 @@ asmlinkage long sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offse
return -EFAULT;
set_fs(KERNEL_DS);
ret = sys_sendfile(out_fd, in_fd, offset ? &of : NULL, count);
ret = sys_sendfile(out_fd, in_fd,
offset ? (off_t __user *) &of : NULL, count);
set_fs(old_fs);
if (offset && put_user(of, offset))
@ -694,7 +698,8 @@ asmlinkage long sys32_sendfile64(int out_fd, int in_fd,
return -EFAULT;
set_fs(KERNEL_DS);
ret = sys_sendfile64(out_fd, in_fd, offset ? &lof : NULL, count);
ret = sys_sendfile64(out_fd, in_fd,
offset ? (loff_t __user *) &lof : NULL, count);
set_fs(old_fs);
if (offset && put_user(lof, offset))

1
arch/s390/kernel/machine_kexec.c
View File

@ -63,6 +63,7 @@ NORET_TYPE void
machine_kexec(struct kimage *image)
{
clear_all_subchannels();
cio_reset_channel_paths();
/* Disable lowcore protection */
ctl_clear_bit(0,28);

2
arch/s390/kernel/module.c
View File

@ -119,7 +119,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
int nrela, i, j;
/* Find symbol table and string table. */
symtab = 0;
symtab = NULL;
for (i = 0; i < hdr->e_shnum; i++)
switch (sechdrs[i].sh_type) {
case SHT_SYMTAB:

2
arch/s390/kernel/process.c
View File

@ -172,7 +172,7 @@ void show_regs(struct pt_regs *regs)
show_registers(regs);
/* Show stack backtrace if pt_regs is from kernel mode */
if (!(regs->psw.mask & PSW_MASK_PSTATE))
show_trace(0,(unsigned long *) regs->gprs[15]);
show_trace(NULL, (unsigned long *) regs->gprs[15]);
}
extern void kernel_thread_starter(void);

2
arch/s390/kernel/profile.c
View File

@ -13,7 +13,7 @@ static struct proc_dir_entry * root_irq_dir;
void init_irq_proc(void)
{
/* create /proc/irq */
root_irq_dir = proc_mkdir("irq", 0);
root_irq_dir = proc_mkdir("irq", NULL);
/* create /proc/irq/prof_cpu_mask */
create_prof_cpu_mask(root_irq_dir);

2
arch/s390/kernel/s390_ext.c
View File

@ -24,7 +24,7 @@
* (0x1202 external call, 0x1004 cpu timer, 0x2401 hwc console, 0x4000
* iucv and 0x2603 pfault) this is always the first element.
*/
ext_int_info_t *ext_int_hash[256] = { 0, };
ext_int_info_t *ext_int_hash[256] = { NULL, };
static inline int ext_hash(__u16 code)
{

2
arch/s390/kernel/time.c
View File

@ -379,7 +379,7 @@ void __init time_init(void)
-xtime.tv_sec, -xtime.tv_nsec);
/* request the clock comparator external interrupt */
if (register_early_external_interrupt(0x1004, 0,
if (register_early_external_interrupt(0x1004, NULL,
&ext_int_info_cc) != 0)
panic("Couldn't request external interrupt 0x1004");

18
arch/s390/kernel/traps.c
View File

@ -170,7 +170,7 @@ void show_stack(struct task_struct *task, unsigned long *sp)
*/
void dump_stack(void)
{
show_stack(0, 0);
show_stack(NULL, NULL);
}
EXPORT_SYMBOL(dump_stack);
@ -331,9 +331,9 @@ static void inline do_trap(long interruption_code, int signr, char *str,
}
}
static inline void *get_check_address(struct pt_regs *regs)
static inline void __user *get_check_address(struct pt_regs *regs)
{
return (void *)((regs->psw.addr-S390_lowcore.pgm_ilc) & PSW_ADDR_INSN);
return (void __user *)((regs->psw.addr-S390_lowcore.pgm_ilc) & PSW_ADDR_INSN);
}
void do_single_step(struct pt_regs *regs)
@ -360,7 +360,7 @@ asmlinkage void name(struct pt_regs * regs, long interruption_code) \
info.si_signo = signr; \
info.si_errno = 0; \
info.si_code = sicode; \
info.si_addr = (void *)siaddr; \
info.si_addr = siaddr; \
do_trap(interruption_code, signr, str, regs, &info); \
}
@ -392,7 +392,7 @@ DO_ERROR_INFO(SIGILL, "translation exception", translation_exception,
ILL_ILLOPN, get_check_address(regs))
static inline void
do_fp_trap(struct pt_regs *regs, void *location,
do_fp_trap(struct pt_regs *regs, void __user *location,
int fpc, long interruption_code)
{
siginfo_t si;
@ -424,10 +424,10 @@ asmlinkage void illegal_op(struct pt_regs * regs, long interruption_code)
{
siginfo_t info;
__u8 opcode[6];
__u16 *location;
__u16 __user *location;
int signal = 0;
location = (__u16 *) get_check_address(regs);
location = get_check_address(regs);
/*
* We got all needed information from the lowcore and can
@ -559,10 +559,10 @@ DO_ERROR_INFO(SIGILL, "specification exception", specification_exception,
asmlinkage void data_exception(struct pt_regs * regs, long interruption_code)
{
__u16 *location;
__u16 __user *location;
int signal = 0;
location = (__u16 *) get_check_address(regs);
location = get_check_address(regs);
/*
* We got all needed information from the lowcore and can

4
arch/s390/lib/string.c
View File

@ -233,7 +233,7 @@ char * strrchr(const char * s, int c)
if (s[len] == (char) c)
return (char *) s + len;
} while (--len > 0);
return 0;
return NULL;
}
EXPORT_SYMBOL(strrchr);
@ -267,7 +267,7 @@ char * strstr(const char * s1,const char * s2)
return (char *) s1;
s1++;
}
return 0;
return NULL;
}
EXPORT_SYMBOL(strstr);

2
arch/s390/mm/cmm.c
View File

@ -161,7 +161,7 @@ cmm_thread(void *dummy)
static void
cmm_start_thread(void)
{
kernel_thread(cmm_thread, 0, 0);
kernel_thread(cmm_thread, NULL, 0);
}
static void

2
arch/s390/mm/fault.c
View File

@ -144,7 +144,7 @@ static void do_sigsegv(struct pt_regs *regs, unsigned long error_code,
#endif
si.si_signo = SIGSEGV;
si.si_code = si_code;
si.si_addr = (void *) address;
si.si_addr = (void __user *) address;
force_sig_info(SIGSEGV, &si, current);
}

8
drivers/s390/block/dasd_devmap.c
View File

@ -394,7 +394,7 @@ dasd_add_busid(char *bus_id, int features)
if (!new)
return ERR_PTR(-ENOMEM);
spin_lock(&dasd_devmap_lock);
devmap = 0;
devmap = NULL;
hash = dasd_hash_busid(bus_id);
list_for_each_entry(tmp, &dasd_hashlists[hash], list)
if (strncmp(tmp->bus_id, bus_id, BUS_ID_SIZE) == 0) {
@ -406,10 +406,10 @@ dasd_add_busid(char *bus_id, int features)
new->devindex = dasd_max_devindex++;
strncpy(new->bus_id, bus_id, BUS_ID_SIZE);
new->features = features;
new->device = 0;
new->device = NULL;
list_add(&new->list, &dasd_hashlists[hash]);
devmap = new;
new = 0;
new = NULL;
}
spin_unlock(&dasd_devmap_lock);
kfree(new);
@ -479,7 +479,7 @@ dasd_device_from_devindex(int devindex)
int i;
spin_lock(&dasd_devmap_lock);
devmap = 0;
devmap = NULL;
for (i = 0; (i < 256) && !devmap; i++)
list_for_each_entry(tmp, &dasd_hashlists[i], list)
if (tmp->devindex == devindex) {

20
drivers/s390/block/dasd_eckd.c
View File

@ -65,16 +65,16 @@ struct dasd_eckd_private {
/* The ccw bus type uses this table to find devices that it sends to
* dasd_eckd_probe */
static struct ccw_device_id dasd_eckd_ids[] = {
{ CCW_DEVICE_DEVTYPE (0x3990, 0, 0x3390, 0), driver_info: 0x1},
{ CCW_DEVICE_DEVTYPE (0x2105, 0, 0x3390, 0), driver_info: 0x2},
{ CCW_DEVICE_DEVTYPE (0x3880, 0, 0x3390, 0), driver_info: 0x3},
{ CCW_DEVICE_DEVTYPE (0x3990, 0, 0x3380, 0), driver_info: 0x4},
{ CCW_DEVICE_DEVTYPE (0x2105, 0, 0x3380, 0), driver_info: 0x5},
{ CCW_DEVICE_DEVTYPE (0x9343, 0, 0x9345, 0), driver_info: 0x6},
{ CCW_DEVICE_DEVTYPE (0x2107, 0, 0x3390, 0), driver_info: 0x7},
{ CCW_DEVICE_DEVTYPE (0x2107, 0, 0x3380, 0), driver_info: 0x8},
{ CCW_DEVICE_DEVTYPE (0x1750, 0, 0x3390, 0), driver_info: 0x9},
{ CCW_DEVICE_DEVTYPE (0x1750, 0, 0x3380, 0), driver_info: 0xa},
{ CCW_DEVICE_DEVTYPE (0x3990, 0, 0x3390, 0), .driver_info = 0x1},
{ CCW_DEVICE_DEVTYPE (0x2105, 0, 0x3390, 0), .driver_info = 0x2},
{ CCW_DEVICE_DEVTYPE (0x3880, 0, 0x3390, 0), .driver_info = 0x3},
{ CCW_DEVICE_DEVTYPE (0x3990, 0, 0x3380, 0), .driver_info = 0x4},
{ CCW_DEVICE_DEVTYPE (0x2105, 0, 0x3380, 0), .driver_info = 0x5},
{ CCW_DEVICE_DEVTYPE (0x9343, 0, 0x9345, 0), .driver_info = 0x6},
{ CCW_DEVICE_DEVTYPE (0x2107, 0, 0x3390, 0), .driver_info = 0x7},
{ CCW_DEVICE_DEVTYPE (0x2107, 0, 0x3380, 0), .driver_info = 0x8},
{ CCW_DEVICE_DEVTYPE (0x1750, 0, 0x3390, 0), .driver_info = 0x9},
{ CCW_DEVICE_DEVTYPE (0x1750, 0, 0x3380, 0), .driver_info = 0xa},
{ /* end of list */ },
};

4
drivers/s390/block/dasd_fba.c
View File

@ -44,8 +44,8 @@ struct dasd_fba_private {
};
static struct ccw_device_id dasd_fba_ids[] = {
{ CCW_DEVICE_DEVTYPE (0x6310, 0, 0x9336, 0), driver_info: 0x1},
{ CCW_DEVICE_DEVTYPE (0x3880, 0, 0x3370, 0), driver_info: 0x2},
{ CCW_DEVICE_DEVTYPE (0x6310, 0, 0x9336, 0), .driver_info = 0x1},
{ CCW_DEVICE_DEVTYPE (0x3880, 0, 0x3370, 0), .driver_info = 0x2},
{ /* end of list */ },
};

8
drivers/s390/block/dasd_genhd.c
View File

@ -84,9 +84,9 @@ void
dasd_gendisk_free(struct dasd_device *device)
{
del_gendisk(device->gdp);
device->gdp->queue = 0;
device->gdp->queue = NULL;
put_disk(device->gdp);
device->gdp = 0;
device->gdp = NULL;
}
/*
@ -136,7 +136,7 @@ dasd_destroy_partitions(struct dasd_device * device)
* device->bdev to lower the offline open_count limit again.
*/
bdev = device->bdev;
device->bdev = 0;
device->bdev = NULL;
/*
* See fs/partition/check.c:delete_partition
@ -145,7 +145,7 @@ dasd_destroy_partitions(struct dasd_device * device)
*/
memset(&bpart, 0, sizeof(struct blkpg_partition));
memset(&barg, 0, sizeof(struct blkpg_ioctl_arg));
barg.data = &bpart;
barg.data = (void __user *) &bpart;
barg.op = BLKPG_DEL_PARTITION;
for (bpart.pno = device->gdp->minors - 1; bpart.pno > 0; bpart.pno--)
ioctl_by_bdev(bdev, BLKPG, (unsigned long) &barg);

2
drivers/s390/block/dasd_ioctl.c
View File

@ -345,7 +345,7 @@ dasd_ioctl_set_ro(struct block_device *bdev, void __user *argp)
if (bdev != bdev->bd_contains)
// ro setting is not allowed for partitions
return -EINVAL;
if (get_user(intval, (int *)argp))
if (get_user(intval, (int __user *)argp))
return -EFAULT;
set_disk_ro(bdev->bd_disk, intval);

63
drivers/s390/block/xpram.c
View File

@ -71,11 +71,11 @@ static int xpram_devs;
/*
* Parameter parsing functions.
*/
static int devs = XPRAM_DEVS;
static unsigned int sizes[XPRAM_MAX_DEVS];
static int __initdata devs = XPRAM_DEVS;
static char __initdata *sizes[XPRAM_MAX_DEVS];
module_param(devs, int, 0);
module_param_array(sizes, int, NULL, 0);
module_param_array(sizes, charp, NULL, 0);
MODULE_PARM_DESC(devs, "number of devices (\"partitions\"), " \
"the default is " __MODULE_STRING(XPRAM_DEVS) "\n");
@ -86,59 +86,6 @@ MODULE_PARM_DESC(sizes, "list of device (partition) sizes " \
"claimed by explicit sizes\n");
MODULE_LICENSE("GPL");
#ifndef MODULE
/*
* Parses the kernel parameters given in the kernel parameter line.
* The expected format is
* <number_of_partitions>[","<partition_size>]*
* where
* devices is a positive integer that initializes xpram_devs
* each size is a non-negative integer possibly followed by a
* magnitude (k,K,m,M,g,G), the list of sizes initialises
* xpram_sizes
*
* Arguments
* str: substring of kernel parameter line that contains xprams
* kernel parameters.
*
* Result 0 on success, -EINVAL else -- only for Version > 2.3
*
* Side effects
* the global variabls devs is set to the value of
* <number_of_partitions> and sizes[i] is set to the i-th
* partition size (if provided). A parsing error of a value
* results in this value being set to -EINVAL.
*/
static int __init xpram_setup (char *str)
{
char *cp;
int i;
devs = simple_strtoul(str, &cp, 10);
if (cp <= str || devs > XPRAM_MAX_DEVS)
return 0;
for (i = 0; (i < devs) && (*cp++ == ','); i++) {
sizes[i] = simple_strtoul(cp, &cp, 10);
if (*cp == 'g' || *cp == 'G') {
sizes[i] <<= 20;
cp++;
} else if (*cp == 'm' || *cp == 'M') {
sizes[i] <<= 10;
cp++;
} else if (*cp == 'k' || *cp == 'K')
cp++;
while (isspace(*cp)) cp++;
}
if (*cp == ',' && i >= devs)
PRINT_WARN("partition sizes list has too many entries.\n");
else if (*cp != 0)
PRINT_WARN("ignored '%s' at end of parameter string.\n", cp);
return 1;
}
__setup("xpram_parts=", xpram_setup);
#endif
/*
* Copy expanded memory page (4kB) into main memory
* Arguments
@ -374,7 +321,9 @@ static int __init xpram_setup_sizes(unsigned long pages)
mem_needed = 0;
mem_auto_no = 0;
for (i = 0; i < xpram_devs; i++) {
xpram_sizes[i] = (sizes[i] + 3) & -4UL;
if (sizes[i])
xpram_sizes[i] =
(memparse(sizes[i], &sizes[i]) + 3) & -4UL;
if (xpram_sizes[i])
mem_needed += xpram_sizes[i];
else

2
drivers/s390/char/con3215.c
View File

@ -693,7 +693,7 @@ raw3215_probe (struct ccw_device *cdev)
GFP_KERNEL|GFP_DMA);
if (raw->buffer == NULL) {
spin_lock(&raw3215_device_lock);
raw3215[line] = 0;
raw3215[line] = NULL;
spin_unlock(&raw3215_device_lock);
kfree(raw);
return -ENOMEM;

2
drivers/s390/char/ctrlchar.c
View File

@ -23,7 +23,7 @@ ctrlchar_handle_sysrq(void *tty)
handle_sysrq(ctrlchar_sysrq_key, NULL, (struct tty_struct *) tty);
}
static DECLARE_WORK(ctrlchar_work, ctrlchar_handle_sysrq, 0);
static DECLARE_WORK(ctrlchar_work, ctrlchar_handle_sysrq, NULL);
#endif

6
drivers/s390/char/defkeymap.c
View File

@ -83,8 +83,8 @@ static u_short shift_ctrl_map[NR_KEYS] = {
};
ushort *key_maps[MAX_NR_KEYMAPS] = {
plain_map, shift_map, 0, 0,
ctrl_map, shift_ctrl_map, 0
plain_map, shift_map, NULL, NULL,
ctrl_map, shift_ctrl_map, NULL,
};
unsigned int keymap_count = 4;
@ -145,7 +145,7 @@ char *func_table[MAX_NR_FUNC] = {
func_buf + 97,
func_buf + 103,
func_buf + 109,
0,
NULL,
};
struct kbdiacr accent_table[MAX_DIACR] = {

12
drivers/s390/char/fs3270.c
View File

@ -236,7 +236,7 @@ fs3270_irq(struct fs3270 *fp, struct raw3270_request *rq, struct irb *irb)
* Process reads from fullscreen 3270.
*/
static ssize_t
fs3270_read(struct file *filp, char *data, size_t count, loff_t *off)
fs3270_read(struct file *filp, char __user *data, size_t count, loff_t *off)
{
struct fs3270 *fp;
struct raw3270_request *rq;
@ -281,7 +281,7 @@ fs3270_read(struct file *filp, char *data, size_t count, loff_t *off)
* Process writes to fullscreen 3270.
*/
static ssize_t
fs3270_write(struct file *filp, const char *data, size_t count, loff_t *off)
fs3270_write(struct file *filp, const char __user *data, size_t count, loff_t *off)
{
struct fs3270 *fp;
struct raw3270_request *rq;
@ -338,10 +338,10 @@ fs3270_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
fp->write_command = arg;
break;
case TUBGETI:
rc = put_user(fp->read_command, (char *) arg);
rc = put_user(fp->read_command, (char __user *) arg);
break;
case TUBGETO:
rc = put_user(fp->write_command,(char *) arg);
rc = put_user(fp->write_command,(char __user *) arg);
break;
case TUBGETMOD:
iocb.model = fp->view.model;
@ -350,7 +350,7 @@ fs3270_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
iocb.pf_cnt = 24;
iocb.re_cnt = 20;
iocb.map = 0;
if (copy_to_user((char *) arg, &iocb,
if (copy_to_user((char __user *) arg, &iocb,
sizeof(struct raw3270_iocb)))
rc = -EFAULT;
break;
@ -479,7 +479,7 @@ fs3270_close(struct inode *inode, struct file *filp)
struct fs3270 *fp;
fp = filp->private_data;
filp->private_data = 0;
filp->private_data = NULL;
if (fp) {
fp->fs_pid = 0;
raw3270_reset(&fp->view);

6
drivers/s390/char/keyboard.c
View File

@ -103,7 +103,7 @@ out_maps:
out_kbd:
kfree(kbd);
out:
return 0;
return NULL;
}
void
@ -304,7 +304,7 @@ kbd_keycode(struct kbd_data *kbd, unsigned int keycode)
if (kbd->sysrq) {
if (kbd->sysrq == K(KT_LATIN, '-')) {
kbd->sysrq = 0;
handle_sysrq(value, 0, kbd->tty);
handle_sysrq(value, NULL, kbd->tty);
return;
}
if (value == '-') {
@ -363,7 +363,7 @@ do_kdsk_ioctl(struct kbd_data *kbd, struct kbentry __user *user_kbe,
/* disallocate map */
key_map = kbd->key_maps[tmp.kb_table];
if (key_map) {
kbd->key_maps[tmp.kb_table] = 0;
kbd->key_maps[tmp.kb_table] = NULL;
kfree(key_map);
}
break;

34
drivers/s390/char/raw3270.c
View File

@ -555,7 +555,7 @@ raw3270_start_init(struct raw3270 *rp, struct raw3270_view *view,
#ifdef CONFIG_TN3270_CONSOLE
if (raw3270_registered == 0) {
spin_lock_irqsave(get_ccwdev_lock(view->dev->cdev), flags);
rq->callback = 0;
rq->callback = NULL;
rc = __raw3270_start(rp, view, rq);
if (rc == 0)
while (!raw3270_request_final(rq)) {
@ -719,8 +719,8 @@ raw3270_size_device(struct raw3270 *rp)
rc = __raw3270_size_device_vm(rp);
else
rc = __raw3270_size_device(rp);
raw3270_init_view.dev = 0;
rp->view = 0;
raw3270_init_view.dev = NULL;
rp->view = NULL;
up(&raw3270_init_sem);
if (rc == 0) { /* Found something. */
/* Try to find a model. */
@ -761,8 +761,8 @@ raw3270_reset_device(struct raw3270 *rp)
rp->view = &raw3270_init_view;
raw3270_init_view.dev = rp;
rc = raw3270_start_init(rp, &raw3270_init_view, &rp->init_request);
raw3270_init_view.dev = 0;
rp->view = 0;
raw3270_init_view.dev = NULL;
rp->view = NULL;
up(&raw3270_init_sem);
return rc;
}
@ -934,7 +934,7 @@ raw3270_activate_view(struct raw3270_view *view)
else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
rc = -ENODEV;
else {
oldview = 0;
oldview = NULL;
if (rp->view) {
oldview = rp->view;
oldview->fn->deactivate(oldview);
@ -951,7 +951,7 @@ raw3270_activate_view(struct raw3270_view *view)
rp->view = nv;
if (nv->fn->activate(nv) == 0)
break;
rp->view = 0;
rp->view = NULL;
}
}
}
@ -975,7 +975,7 @@ raw3270_deactivate_view(struct raw3270_view *view)
spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
if (rp->view == view) {
view->fn->deactivate(view);
rp->view = 0;
rp->view = NULL;
/* Move deactivated view to end of list. */
list_del_init(&view->list);
list_add_tail(&view->list, &rp->view_list);
@ -985,7 +985,7 @@ raw3270_deactivate_view(struct raw3270_view *view)
rp->view = view;
if (view->fn->activate(view) == 0)
break;
rp->view = 0;
rp->view = NULL;
}
}
}
@ -1076,7 +1076,7 @@ raw3270_del_view(struct raw3270_view *view)
spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
if (rp->view == view) {
view->fn->deactivate(view);
rp->view = 0;
rp->view = NULL;
}
list_del_init(&view->list);
if (!rp->view && test_bit(RAW3270_FLAGS_READY, &rp->flags)) {
@ -1117,9 +1117,9 @@ raw3270_delete_device(struct raw3270 *rp)
/* Disconnect from ccw_device. */
cdev = rp->cdev;
rp->cdev = 0;
cdev->dev.driver_data = 0;
cdev->handler = 0;
rp->cdev = NULL;
cdev->dev.driver_data = NULL;
cdev->handler = NULL;
/* Put ccw_device structure. */
put_device(&cdev->dev);
@ -1144,7 +1144,7 @@ raw3270_model_show(struct device *dev, struct device_attribute *attr, char *buf)
return snprintf(buf, PAGE_SIZE, "%i\n",
((struct raw3270 *) dev->driver_data)->model);
}
static DEVICE_ATTR(model, 0444, raw3270_model_show, 0);
static DEVICE_ATTR(model, 0444, raw3270_model_show, NULL);
static ssize_t
raw3270_rows_show(struct device *dev, struct device_attribute *attr, char *buf)
@ -1152,7 +1152,7 @@ raw3270_rows_show(struct device *dev, struct device_attribute *attr, char *buf)
return snprintf(buf, PAGE_SIZE, "%i\n",
((struct raw3270 *) dev->driver_data)->rows);
}
static DEVICE_ATTR(rows, 0444, raw3270_rows_show, 0);
static DEVICE_ATTR(rows, 0444, raw3270_rows_show, NULL);
static ssize_t
raw3270_columns_show(struct device *dev, struct device_attribute *attr, char *buf)
@ -1160,7 +1160,7 @@ raw3270_columns_show(struct device *dev, struct device_attribute *attr, char *bu
return snprintf(buf, PAGE_SIZE, "%i\n",
((struct raw3270 *) dev->driver_data)->cols);
}
static DEVICE_ATTR(columns, 0444, raw3270_columns_show, 0);
static DEVICE_ATTR(columns, 0444, raw3270_columns_show, NULL);
static struct attribute * raw3270_attrs[] = {
&dev_attr_model.attr,
@ -1296,7 +1296,7 @@ raw3270_remove (struct ccw_device *cdev)
spin_lock_irqsave(get_ccwdev_lock(cdev), flags);
if (rp->view) {
rp->view->fn->deactivate(rp->view);
rp->view = 0;
rp->view = NULL;
}
while (!list_empty(&rp->view_list)) {
v = list_entry(rp->view_list.next, struct raw3270_view, list);

2
drivers/s390/char/raw3270.h
View File

@ -231,7 +231,7 @@ alloc_string(struct list_head *free_list, unsigned long len)
INIT_LIST_HEAD(&cs->update);
return cs;
}
return 0;
return NULL;
}
static inline unsigned long

6
drivers/s390/char/tape_34xx.c
View File

@ -1309,9 +1309,9 @@ static struct tape_discipline tape_discipline_34xx = {
};
static struct ccw_device_id tape_34xx_ids[] = {
{ CCW_DEVICE_DEVTYPE(0x3480, 0, 0x3480, 0), driver_info: tape_3480},
{ CCW_DEVICE_DEVTYPE(0x3490, 0, 0x3490, 0), driver_info: tape_3490},
{ /* end of list */ }
{ CCW_DEVICE_DEVTYPE(0x3480, 0, 0x3480, 0), .driver_info = tape_3480},
{ CCW_DEVICE_DEVTYPE(0x3490, 0, 0x3490, 0), .driver_info = tape_3490},
{ /* end of list */ },
};
static int

24
drivers/s390/char/tty3270.c
View File

@ -437,7 +437,7 @@ tty3270_rcl_add(struct tty3270 *tp, char *input, int len)
{
struct string *s;
tp->rcl_walk = 0;
tp->rcl_walk = NULL;
if (len <= 0)
return;
if (tp->rcl_nr >= tp->rcl_max) {
@ -466,12 +466,12 @@ tty3270_rcl_backward(struct kbd_data *kbd)
else if (!list_empty(&tp->rcl_lines))
tp->rcl_walk = tp->rcl_lines.prev;
s = tp->rcl_walk ?
list_entry(tp->rcl_walk, struct string, list) : 0;
list_entry(tp->rcl_walk, struct string, list) : NULL;
if (tp->rcl_walk) {
s = list_entry(tp->rcl_walk, struct string, list);
tty3270_update_prompt(tp, s->string, s->len);
} else
tty3270_update_prompt(tp, 0, 0);
tty3270_update_prompt(tp, NULL, 0);
tty3270_set_timer(tp, 1);
}
spin_unlock_bh(&tp->view.lock);
@ -553,7 +553,7 @@ tty3270_read_tasklet(struct raw3270_request *rrq)
* has to be emitted to the tty and for 0x6d the screen
* needs to be redrawn.
*/
input = 0;
input = NULL;
len = 0;
if (tp->input->string[0] == 0x7d) {
/* Enter: write input to tty. */
@ -567,7 +567,7 @@ tty3270_read_tasklet(struct raw3270_request *rrq)
tty3270_update_status(tp);
}
/* Clear input area. */
tty3270_update_prompt(tp, 0, 0);
tty3270_update_prompt(tp, NULL, 0);
tty3270_set_timer(tp, 1);
} else if (tp->input->string[0] == 0x6d) {
/* Display has been cleared. Redraw. */
@ -808,8 +808,8 @@ tty3270_release(struct raw3270_view *view)
tp = (struct tty3270 *) view;
tty = tp->tty;
if (tty) {
tty->driver_data = 0;
tp->tty = tp->kbd->tty = 0;
tty->driver_data = NULL;
tp->tty = tp->kbd->tty = NULL;
tty_hangup(tty);
raw3270_put_view(&tp->view);
}
@ -948,8 +948,8 @@ tty3270_close(struct tty_struct *tty, struct file * filp)
return;
tp = (struct tty3270 *) tty->driver_data;
if (tp) {
tty->driver_data = 0;
tp->tty = tp->kbd->tty = 0;
tty->driver_data = NULL;
tp->tty = tp->kbd->tty = NULL;
raw3270_put_view(&tp->view);
}
}
@ -1673,7 +1673,7 @@ tty3270_set_termios(struct tty_struct *tty, struct termios *old)
new = L_ECHO(tty) ? TF_INPUT: TF_INPUTN;
if (new != tp->inattr) {
tp->inattr = new;
tty3270_update_prompt(tp, 0, 0);
tty3270_update_prompt(tp, NULL, 0);
tty3270_set_timer(tp, 1);
}
}
@ -1759,7 +1759,7 @@ void
tty3270_notifier(int index, int active)
{
if (active)
tty_register_device(tty3270_driver, index, 0);
tty_register_device(tty3270_driver, index, NULL);
else
tty_unregister_device(tty3270_driver, index);
}
@ -1818,7 +1818,7 @@ tty3270_exit(void)
raw3270_unregister_notifier(tty3270_notifier);
driver = tty3270_driver;
tty3270_driver = 0;
tty3270_driver = NULL;
tty_unregister_driver(driver);
tty3270_del_views();
}

6
drivers/s390/char/vmlogrdr.c
View File

@ -86,8 +86,8 @@ struct vmlogrdr_priv_t {
*/
static int vmlogrdr_open(struct inode *, struct file *);
static int vmlogrdr_release(struct inode *, struct file *);
static ssize_t vmlogrdr_read (struct file *filp, char *data, size_t count,
loff_t * ppos);
static ssize_t vmlogrdr_read (struct file *filp, char __user *data,
size_t count, loff_t * ppos);
static struct file_operations vmlogrdr_fops = {
.owner = THIS_MODULE,
@ -515,7 +515,7 @@ vmlogrdr_receive_data(struct vmlogrdr_priv_t *priv) {
static ssize_t
vmlogrdr_read (struct file *filp, char *data, size_t count, loff_t * ppos)
vmlogrdr_read(struct file *filp, char __user *data, size_t count, loff_t * ppos)
{
int rc;
struct vmlogrdr_priv_t * priv = filp->private_data;

2
drivers/s390/char/vmwatchdog.c
View File

@ -193,7 +193,7 @@ static int vmwdt_ioctl(struct inode *i, struct file *f,
return 0;
case WDIOC_GETSTATUS:
case WDIOC_GETBOOTSTATUS:
return put_user(0, (int *)arg);
return put_user(0, (int __user *)arg);
case WDIOC_GETTEMP:
return -EINVAL;
case WDIOC_SETOPTIONS:

2
drivers/s390/cio/ccwgroup.c
View File

@ -319,7 +319,7 @@ ccwgroup_online_store (struct device *dev, struct device_attribute *attr, const
if (!try_module_get(gdrv->owner))
return -EINVAL;
value = simple_strtoul(buf, 0, 0);
value = simple_strtoul(buf, NULL, 0);
ret = count;
if (value == 1)
ccwgroup_set_online(gdev);

34
drivers/s390/cio/chsc.c
View File

@ -1464,6 +1464,40 @@ chsc_get_chp_desc(struct subchannel *sch, int chp_no)
return desc;
}
static int reset_channel_path(struct channel_path *chp)
{
int cc;
cc = rchp(chp->id);
switch (cc) {
case 0:
return 0;
case 2:
return -EBUSY;
default:
return -ENODEV;
}
}
static void reset_channel_paths_css(struct channel_subsystem *css)
{
int i;
for (i = 0; i <= __MAX_CHPID; i++) {
if (css->chps[i])
reset_channel_path(css->chps[i]);
}
}
void cio_reset_channel_paths(void)
{
int i;
for (i = 0; i <= __MAX_CSSID; i++) {
if (css[i] && css[i]->valid)
reset_channel_paths_css(css[i]);
}
}
static int __init
chsc_alloc_sei_area(void)

4
drivers/s390/cio/cio.c
View File

@ -519,6 +519,7 @@ cio_validate_subchannel (struct subchannel *sch, struct subchannel_id schid)
memset(sch, 0, sizeof(struct subchannel));
spin_lock_init(&sch->lock);
mutex_init(&sch->reg_mutex);
/* Set a name for the subchannel */
snprintf (sch->dev.bus_id, BUS_ID_SIZE, "0.%x.%04x", schid.ssid,
@ -797,7 +798,7 @@ struct subchannel *
cio_get_console_subchannel(void)
{
if (!console_subchannel_in_use)
return 0;
return NULL;
return &console_subchannel;
}
@ -875,5 +876,6 @@ void
reipl(unsigned long devno)
{
clear_all_subchannels();
cio_reset_channel_paths();
do_reipl(devno);
}

3
drivers/s390/cio/cio.h
View File

@ -2,6 +2,7 @@
#define S390_CIO_H
#include "schid.h"
#include <linux/mutex.h>
/*
* where we put the ssd info
@ -87,7 +88,7 @@ struct orb {
struct subchannel {
struct subchannel_id schid;
spinlock_t lock; /* subchannel lock */
struct mutex reg_mutex;
enum {
SUBCHANNEL_TYPE_IO = 0,
SUBCHANNEL_TYPE_CHSC = 1,

4
drivers/s390/cio/cmf.c
View File

@ -1140,7 +1140,7 @@ static struct attribute *cmf_attributes[] = {
&dev_attr_avg_device_disconnect_time.attr,
&dev_attr_avg_control_unit_queuing_time.attr,
&dev_attr_avg_device_active_only_time.attr,
0,
NULL,
};
static struct attribute_group cmf_attr_group = {
@ -1160,7 +1160,7 @@ static struct attribute *cmf_attributes_ext[] = {
&dev_attr_avg_device_active_only_time.attr,
&dev_attr_avg_device_busy_time.attr,
&dev_attr_avg_initial_command_response_time.attr,
0,
NULL,
};
static struct attribute_group cmf_attr_group_ext = {

36
drivers/s390/cio/css.c
View File

@ -108,6 +108,24 @@ css_subchannel_release(struct device *dev)
extern int css_get_ssd_info(struct subchannel *sch);
int css_sch_device_register(struct subchannel *sch)
{
int ret;
mutex_lock(&sch->reg_mutex);
ret = device_register(&sch->dev);
mutex_unlock(&sch->reg_mutex);
return ret;
}
void css_sch_device_unregister(struct subchannel *sch)
{
mutex_lock(&sch->reg_mutex);
device_unregister(&sch->dev);
mutex_unlock(&sch->reg_mutex);
}
static int
css_register_subchannel(struct subchannel *sch)
{
@ -119,7 +137,7 @@ css_register_subchannel(struct subchannel *sch)
sch->dev.release = &css_subchannel_release;
/* make it known to the system */
ret = device_register(&sch->dev);
ret = css_sch_device_register(sch);
if (ret)
printk (KERN_WARNING "%s: could not register %s\n",
__func__, sch->dev.bus_id);
@ -250,7 +268,7 @@ css_evaluate_subchannel(struct subchannel_id schid, int slow)
* The device will be killed automatically.
*/
cio_disable_subchannel(sch);
device_unregister(&sch->dev);
css_sch_device_unregister(sch);
/* Reset intparm to zeroes. */
sch->schib.pmcw.intparm = 0;
cio_modify(sch);
@ -264,7 +282,7 @@ css_evaluate_subchannel(struct subchannel_id schid, int slow)
* away in any case.
*/
if (!disc) {
device_unregister(&sch->dev);
css_sch_device_unregister(sch);
/* Reset intparm to zeroes. */
sch->schib.pmcw.intparm = 0;
cio_modify(sch);
@ -605,9 +623,13 @@ init_channel_subsystem (void)
ret = device_register(&css[i]->device);
if (ret)
goto out_free;
if (css_characteristics_avail && css_chsc_characteristics.secm)
device_create_file(&css[i]->device,
&dev_attr_cm_enable);
if (css_characteristics_avail &&
css_chsc_characteristics.secm) {
ret = device_create_file(&css[i]->device,
&dev_attr_cm_enable);
if (ret)
goto out_device;
}
}
css_init_done = 1;
@ -615,6 +637,8 @@ init_channel_subsystem (void)
for_each_subchannel(__init_channel_subsystem, NULL);
return 0;
out_device:
device_unregister(&css[i]->device);
out_free:
kfree(css[i]);
out_unregister:

4
drivers/s390/cio/css.h
View File

@ -100,7 +100,7 @@ struct ccw_device_private {
struct qdio_irq *qdio_data;
struct irb irb; /* device status */
struct senseid senseid; /* SenseID info */
struct pgid pgid; /* path group ID */
struct pgid pgid[8]; /* path group IDs per chpid*/
struct ccw1 iccws[2]; /* ccws for SNID/SID/SPGID commands */
struct work_struct kick_work;
wait_queue_head_t wait_q;
@ -136,6 +136,8 @@ extern struct bus_type css_bus_type;
extern struct css_driver io_subchannel_driver;
extern int css_probe_device(struct subchannel_id);
extern int css_sch_device_register(struct subchannel *);
extern void css_sch_device_unregister(struct subchannel *);
extern struct subchannel * get_subchannel_by_schid(struct subchannel_id);
extern int css_init_done;
extern int for_each_subchannel(int(*fn)(struct subchannel_id, void *), void *);

14
drivers/s390/cio/device.c
View File

@ -100,7 +100,7 @@ ccw_uevent (struct device *dev, char **envp, int num_envp,
if ((buffer_size - length <= 0) || (i >= num_envp))
return -ENOMEM;
envp[i] = 0;
envp[i] = NULL;
return 0;
}
@ -280,7 +280,7 @@ ccw_device_remove_disconnected(struct ccw_device *cdev)
* 'throw away device'.
*/
sch = to_subchannel(cdev->dev.parent);
device_unregister(&sch->dev);
css_sch_device_unregister(sch);
/* Reset intparm to zeroes. */
sch->schib.pmcw.intparm = 0;
cio_modify(sch);
@ -625,7 +625,7 @@ ccw_device_do_unreg_rereg(void *data)
other_sch->schib.pmcw.intparm = 0;
cio_modify(other_sch);
}
device_unregister(&other_sch->dev);
css_sch_device_unregister(other_sch);
}
}
/* Update ssd info here. */
@ -709,7 +709,7 @@ ccw_device_call_sch_unregister(void *data)
struct subchannel *sch;
sch = to_subchannel(cdev->dev.parent);
device_unregister(&sch->dev);
css_sch_device_unregister(sch);
/* Reset intparm to zeroes. */
sch->schib.pmcw.intparm = 0;
cio_modify(sch);
@ -1057,7 +1057,7 @@ get_ccwdev_by_busid(struct ccw_driver *cdrv, const char *bus_id)
__ccwdev_check_busid);
put_driver(drv);
return dev ? to_ccwdev(dev) : 0;
return dev ? to_ccwdev(dev) : NULL;
}
/************************** device driver handling ************************/
@ -1082,7 +1082,7 @@ ccw_device_probe (struct device *dev)
ret = cdrv->probe ? cdrv->probe(cdev) : -ENODEV;
if (ret) {
cdev->drv = 0;
cdev->drv = NULL;
return ret;
}
@ -1113,7 +1113,7 @@ ccw_device_remove (struct device *dev)
ret, cdev->dev.bus_id);
}
ccw_device_set_timeout(cdev, 0);
cdev->drv = 0;
cdev->drv = NULL;
return 0;
}

85
drivers/s390/cio/device_fsm.c
View File

@ -378,6 +378,56 @@ ccw_device_done(struct ccw_device *cdev, int state)
put_device (&cdev->dev);
}
static inline int cmp_pgid(struct pgid *p1, struct pgid *p2)
{
char *c1;
char *c2;
c1 = (char *)p1;
c2 = (char *)p2;
return memcmp(c1 + 1, c2 + 1, sizeof(struct pgid) - 1);
}
static void __ccw_device_get_common_pgid(struct ccw_device *cdev)
{
int i;
int last;
last = 0;
for (i = 0; i < 8; i++) {
if (cdev->private->pgid[i].inf.ps.state1 == SNID_STATE1_RESET)
/* No PGID yet */
continue;
if (cdev->private->pgid[last].inf.ps.state1 ==
SNID_STATE1_RESET) {
/* First non-zero PGID */
last = i;
continue;
}
if (cmp_pgid(&cdev->private->pgid[i],
&cdev->private->pgid[last]) == 0)
/* Non-conflicting PGIDs */
continue;
/* PGID mismatch, can't pathgroup. */
CIO_MSG_EVENT(0, "SNID - pgid mismatch for device "
"0.%x.%04x, can't pathgroup\n",
cdev->private->ssid, cdev->private->devno);
cdev->private->options.pgroup = 0;
return;
}
if (cdev->private->pgid[last].inf.ps.state1 ==
SNID_STATE1_RESET)
/* No previous pgid found */
memcpy(&cdev->private->pgid[0], &css[0]->global_pgid,
sizeof(struct pgid));
else
/* Use existing pgid */
memcpy(&cdev->private->pgid[0], &cdev->private->pgid[last],
sizeof(struct pgid));
}
/*
* Function called from device_pgid.c after sense path ground has completed.
*/
@ -388,24 +438,26 @@ ccw_device_sense_pgid_done(struct ccw_device *cdev, int err)
sch = to_subchannel(cdev->dev.parent);
switch (err) {
case 0:
/* Start Path Group verification. */
sch->vpm = 0; /* Start with no path groups set. */
cdev->private->state = DEV_STATE_VERIFY;
ccw_device_verify_start(cdev);
case -EOPNOTSUPP: /* path grouping not supported, use nop instead. */
cdev->private->options.pgroup = 0;
break;
case 0: /* success */
case -EACCES: /* partial success, some paths not operational */
/* Check if all pgids are equal or 0. */
__ccw_device_get_common_pgid(cdev);
break;
case -ETIME: /* Sense path group id stopped by timeout. */
case -EUSERS: /* device is reserved for someone else. */
ccw_device_done(cdev, DEV_STATE_BOXED);
break;
case -EOPNOTSUPP: /* path grouping not supported, just set online. */
cdev->private->options.pgroup = 0;
ccw_device_done(cdev, DEV_STATE_ONLINE);
break;
return;
default:
ccw_device_done(cdev, DEV_STATE_NOT_OPER);
break;
return;
}
/* Start Path Group verification. */
sch->vpm = 0; /* Start with no path groups set. */
cdev->private->state = DEV_STATE_VERIFY;
ccw_device_verify_start(cdev);
}
/*
@ -562,8 +614,9 @@ ccw_device_online(struct ccw_device *cdev)
}
/* Do we want to do path grouping? */
if (!cdev->private->options.pgroup) {
/* No, set state online immediately. */
ccw_device_done(cdev, DEV_STATE_ONLINE);
/* Start initial path verification. */
cdev->private->state = DEV_STATE_VERIFY;
ccw_device_verify_start(cdev);
return 0;
}
/* Do a SensePGID first. */
@ -609,6 +662,7 @@ ccw_device_offline(struct ccw_device *cdev)
/* Are we doing path grouping? */
if (!cdev->private->options.pgroup) {
/* No, set state offline immediately. */
sch->vpm = 0;
ccw_device_done(cdev, DEV_STATE_OFFLINE);
return 0;
}
@ -705,8 +759,6 @@ ccw_device_online_verify(struct ccw_device *cdev, enum dev_event dev_event)
{
struct subchannel *sch;
if (!cdev->private->options.pgroup)
return;
if (cdev->private->state == DEV_STATE_W4SENSE) {
cdev->private->flags.doverify = 1;
return;
@ -995,8 +1047,7 @@ static void
ccw_device_wait4io_verify(struct ccw_device *cdev, enum dev_event dev_event)
{
/* When the I/O has terminated, we have to start verification. */
if (cdev->private->options.pgroup)
cdev->private->flags.doverify = 1;
cdev->private->flags.doverify = 1;
}
static void

122
drivers/s390/cio/device_pgid.c
View File

@ -33,12 +33,17 @@ __ccw_device_sense_pgid_start(struct ccw_device *cdev)
struct subchannel *sch;
struct ccw1 *ccw;
int ret;
int i;
sch = to_subchannel(cdev->dev.parent);
/* Return if we already checked on all paths. */
if (cdev->private->imask == 0)
return (sch->lpm == 0) ? -ENODEV : -EACCES;
i = 8 - ffs(cdev->private->imask);
/* Setup sense path group id channel program. */
ccw = cdev->private->iccws;
ccw->cmd_code = CCW_CMD_SENSE_PGID;
ccw->cda = (__u32) __pa (&cdev->private->pgid);
ccw->count = sizeof (struct pgid);
ccw->flags = CCW_FLAG_SLI;
@ -48,6 +53,7 @@ __ccw_device_sense_pgid_start(struct ccw_device *cdev)
ret = -ENODEV;
while (cdev->private->imask != 0) {
/* Try every path multiple times. */
ccw->cda = (__u32) __pa (&cdev->private->pgid[i]);
if (cdev->private->iretry > 0) {
cdev->private->iretry--;
ret = cio_start (sch, cdev->private->iccws,
@ -64,7 +70,9 @@ __ccw_device_sense_pgid_start(struct ccw_device *cdev)
}
cdev->private->imask >>= 1;
cdev->private->iretry = 5;
i++;
}
return ret;
}
@ -76,7 +84,7 @@ ccw_device_sense_pgid_start(struct ccw_device *cdev)
cdev->private->state = DEV_STATE_SENSE_PGID;
cdev->private->imask = 0x80;
cdev->private->iretry = 5;
memset (&cdev->private->pgid, 0, sizeof (struct pgid));
memset (&cdev->private->pgid, 0, sizeof (cdev->private->pgid));
ret = __ccw_device_sense_pgid_start(cdev);
if (ret && ret != -EBUSY)
ccw_device_sense_pgid_done(cdev, ret);
@ -91,6 +99,7 @@ __ccw_device_check_sense_pgid(struct ccw_device *cdev)
{
struct subchannel *sch;
struct irb *irb;
int i;
sch = to_subchannel(cdev->dev.parent);
irb = &cdev->private->irb;
@ -124,7 +133,8 @@ __ccw_device_check_sense_pgid(struct ccw_device *cdev)
sch->schid.sch_no, sch->orb.lpm);
return -EACCES;
}
if (cdev->private->pgid.inf.ps.state2 == SNID_STATE2_RESVD_ELSE) {
i = 8 - ffs(cdev->private->imask);
if (cdev->private->pgid[i].inf.ps.state2 == SNID_STATE2_RESVD_ELSE) {
CIO_MSG_EVENT(2, "SNID - Device %04x on Subchannel 0.%x.%04x "
"is reserved by someone else\n",
cdev->private->devno, sch->schid.ssid,
@ -162,12 +172,6 @@ ccw_device_sense_pgid_irq(struct ccw_device *cdev, enum dev_event dev_event)
memset(&cdev->private->irb, 0, sizeof(struct irb));
switch (ret) {
/* 0, -ETIME, -EOPNOTSUPP, -EAGAIN, -EACCES or -EUSERS */
case 0: /* Sense Path Group ID successful. */
if (cdev->private->pgid.inf.ps.state1 == SNID_STATE1_RESET)
memcpy(&cdev->private->pgid, &css[0]->global_pgid,
sizeof(struct pgid));
ccw_device_sense_pgid_done(cdev, 0);
break;
case -EOPNOTSUPP: /* Sense Path Group ID not supported */
ccw_device_sense_pgid_done(cdev, -EOPNOTSUPP);
break;
@ -176,13 +180,15 @@ ccw_device_sense_pgid_irq(struct ccw_device *cdev, enum dev_event dev_event)
break;
case -EACCES: /* channel is not operational. */
sch->lpm &= ~cdev->private->imask;
/* Fall through. */
case 0: /* Sense Path Group ID successful. */
cdev->private->imask >>= 1;
cdev->private->iretry = 5;
/* Fall through. */
case -EAGAIN: /* Try again. */
ret = __ccw_device_sense_pgid_start(cdev);
if (ret != 0 && ret != -EBUSY)
ccw_device_sense_pgid_done(cdev, -ENODEV);
ccw_device_sense_pgid_done(cdev, ret);
break;
case -EUSERS: /* device is reserved for someone else. */
ccw_device_sense_pgid_done(cdev, -EUSERS);
@ -203,20 +209,20 @@ __ccw_device_do_pgid(struct ccw_device *cdev, __u8 func)
sch = to_subchannel(cdev->dev.parent);
/* Setup sense path group id channel program. */
cdev->private->pgid.inf.fc = func;
cdev->private->pgid[0].inf.fc = func;
ccw = cdev->private->iccws;
if (!cdev->private->flags.pgid_single) {
cdev->private->pgid.inf.fc |= SPID_FUNC_MULTI_PATH;
cdev->private->pgid[0].inf.fc |= SPID_FUNC_MULTI_PATH;
ccw->cmd_code = CCW_CMD_SUSPEND_RECONN;
ccw->cda = 0;
ccw->count = 0;
ccw->flags = CCW_FLAG_SLI | CCW_FLAG_CC;
ccw++;
} else
cdev->private->pgid.inf.fc |= SPID_FUNC_SINGLE_PATH;
cdev->private->pgid[0].inf.fc |= SPID_FUNC_SINGLE_PATH;
ccw->cmd_code = CCW_CMD_SET_PGID;
ccw->cda = (__u32) __pa (&cdev->private->pgid);
ccw->cda = (__u32) __pa (&cdev->private->pgid[0]);
ccw->count = sizeof (struct pgid);
ccw->flags = CCW_FLAG_SLI;
@ -243,6 +249,48 @@ __ccw_device_do_pgid(struct ccw_device *cdev, __u8 func)
return ret;
}
/*
* Helper function to send a nop ccw down a path.
*/
static int __ccw_device_do_nop(struct ccw_device *cdev)
{
struct subchannel *sch;
struct ccw1 *ccw;
int ret;
sch = to_subchannel(cdev->dev.parent);
/* Setup nop channel program. */
ccw = cdev->private->iccws;
ccw->cmd_code = CCW_CMD_NOOP;
ccw->cda = 0;
ccw->count = 0;
ccw->flags = CCW_FLAG_SLI;
/* Reset device status. */
memset(&cdev->private->irb, 0, sizeof(struct irb));
/* Try multiple times. */
ret = -ENODEV;
if (cdev->private->iretry > 0) {
cdev->private->iretry--;
ret = cio_start (sch, cdev->private->iccws,
cdev->private->imask);
/* ret is 0, -EBUSY, -EACCES or -ENODEV */
if ((ret != -EACCES) && (ret != -ENODEV))
return ret;
}
/* nop command failed on this path. Switch it off. */
sch->lpm &= ~cdev->private->imask;
sch->vpm &= ~cdev->private->imask;
CIO_MSG_EVENT(2, "NOP - Device %04x on Subchannel "
"0.%x.%04x, lpm %02X, became 'not operational'\n",
cdev->private->devno, sch->schid.ssid,
sch->schid.sch_no, cdev->private->imask);
return ret;
}
/*
* Called from interrupt context to check if a valid answer
* to Set Path Group ID was received.
@ -282,6 +330,29 @@ __ccw_device_check_pgid(struct ccw_device *cdev)
return 0;
}
/*
* Called from interrupt context to check the path status after a nop has
* been send.
*/
static int __ccw_device_check_nop(struct ccw_device *cdev)
{
struct subchannel *sch;
struct irb *irb;
sch = to_subchannel(cdev->dev.parent);
irb = &cdev->private->irb;
if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC | SCSW_FCTL_CLEAR_FUNC))
return -ETIME;
if (irb->scsw.cc == 3) {
CIO_MSG_EVENT(2, "NOP - Device %04x on Subchannel 0.%x.%04x,"
" lpm %02X, became 'not operational'\n",
cdev->private->devno, sch->schid.ssid,
sch->schid.sch_no, cdev->private->imask);
return -EACCES;
}
return 0;
}
static void
__ccw_device_verify_start(struct ccw_device *cdev)
{
@ -296,9 +367,12 @@ __ccw_device_verify_start(struct ccw_device *cdev)
if ((sch->vpm & imask) != (sch->lpm & imask))
break;
cdev->private->imask = imask;
func = (sch->vpm & imask) ?
SPID_FUNC_RESIGN : SPID_FUNC_ESTABLISH;
ret = __ccw_device_do_pgid(cdev, func);
if (cdev->private->options.pgroup) {
func = (sch->vpm & imask) ?
SPID_FUNC_RESIGN : SPID_FUNC_ESTABLISH;
ret = __ccw_device_do_pgid(cdev, func);
} else
ret = __ccw_device_do_nop(cdev);
if (ret == 0 || ret == -EBUSY)
return;
cdev->private->iretry = 5;
@ -327,7 +401,10 @@ ccw_device_verify_irq(struct ccw_device *cdev, enum dev_event dev_event)
if (ccw_device_accumulate_and_sense(cdev, irb) != 0)
return;
sch = to_subchannel(cdev->dev.parent);
ret = __ccw_device_check_pgid(cdev);
if (cdev->private->options.pgroup)
ret = __ccw_device_check_pgid(cdev);
else
ret = __ccw_device_check_nop(cdev);
memset(&cdev->private->irb, 0, sizeof(struct irb));
switch (ret) {
/* 0, -ETIME, -EAGAIN, -EOPNOTSUPP or -EACCES */
@ -345,11 +422,10 @@ ccw_device_verify_irq(struct ccw_device *cdev, enum dev_event dev_event)
* One of those strange devices which claim to be able
* to do multipathing but not for Set Path Group ID.
*/
if (cdev->private->flags.pgid_single) {
ccw_device_verify_done(cdev, -EOPNOTSUPP);
break;
}
cdev->private->flags.pgid_single = 1;
if (cdev->private->flags.pgid_single)
cdev->private->options.pgroup = 0;
else
cdev->private->flags.pgid_single = 1;
/* fall through. */
case -EAGAIN: /* Try again. */
__ccw_device_verify_start(cdev);

7
drivers/s390/cio/device_status.c
View File

@ -67,8 +67,7 @@ ccw_device_path_notoper(struct ccw_device *cdev)
sch->schib.pmcw.pnom);
sch->lpm &= ~sch->schib.pmcw.pnom;
if (cdev->private->options.pgroup)
cdev->private->flags.doverify = 1;
cdev->private->flags.doverify = 1;
}
/*
@ -180,7 +179,7 @@ ccw_device_accumulate_esw(struct ccw_device *cdev, struct irb *irb)
cdev_irb->esw.esw0.erw.auth = irb->esw.esw0.erw.auth;
/* Copy path verification required flag. */
cdev_irb->esw.esw0.erw.pvrf = irb->esw.esw0.erw.pvrf;
if (irb->esw.esw0.erw.pvrf && cdev->private->options.pgroup)
if (irb->esw.esw0.erw.pvrf)
cdev->private->flags.doverify = 1;
/* Copy concurrent sense bit. */
cdev_irb->esw.esw0.erw.cons = irb->esw.esw0.erw.cons;
@ -354,7 +353,7 @@ ccw_device_accumulate_basic_sense(struct ccw_device *cdev, struct irb *irb)
}
/* Check if path verification is required. */
if (ccw_device_accumulate_esw_valid(irb) &&
irb->esw.esw0.erw.pvrf && cdev->private->options.pgroup)
irb->esw.esw0.erw.pvrf)
cdev->private->flags.doverify = 1;
}

2
drivers/s390/cio/qdio.c
View File

@ -2735,7 +2735,7 @@ qdio_free(struct ccw_device *cdev)
QDIO_DBF_TEXT1(0,trace,dbf_text);
QDIO_DBF_TEXT0(0,setup,dbf_text);
cdev->private->qdio_data = 0;
cdev->private->qdio_data = NULL;
up(&irq_ptr->setting_up_sema);

2
drivers/s390/net/iucv.c
View File

@ -692,7 +692,7 @@ iucv_retrieve_buffer (void)
iucv_debug(1, "entering");
if (iucv_cpuid != -1) {
smp_call_function_on(iucv_retrieve_buffer_cpuid,
0, 0, 1, iucv_cpuid);
NULL, 0, 1, iucv_cpuid);
/* Release the cpu reserved by iucv_declare_buffer. */
smp_put_cpu(iucv_cpuid);
iucv_cpuid = -1;

16
drivers/s390/net/qeth_main.c
View File

@ -4804,7 +4804,7 @@ static struct qeth_cmd_buffer *
qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
__u16, __u16, enum qeth_prot_versions);
static int
qeth_arp_query(struct qeth_card *card, char *udata)
qeth_arp_query(struct qeth_card *card, char __user *udata)
{
struct qeth_cmd_buffer *iob;
struct qeth_arp_query_info qinfo = {0, };
@ -4937,7 +4937,7 @@ qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
* function to send SNMP commands to OSA-E card
*/
static int
qeth_snmp_command(struct qeth_card *card, char *udata)
qeth_snmp_command(struct qeth_card *card, char __user *udata)
{
struct qeth_cmd_buffer *iob;
struct qeth_ipa_cmd *cmd;
@ -7909,9 +7909,9 @@ qeth_set_online(struct ccwgroup_device *gdev)
}
static struct ccw_device_id qeth_ids[] = {
{CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
{CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
{CCW_DEVICE(0x1731, 0x06), driver_info:QETH_CARD_TYPE_OSN},
{CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
{CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
{CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
{},
};
MODULE_DEVICE_TABLE(ccw, qeth_ids);
@ -8380,7 +8380,7 @@ out:
static struct notifier_block qeth_ip_notifier = {
qeth_ip_event,
0
NULL,
};
#ifdef CONFIG_QETH_IPV6
@ -8433,7 +8433,7 @@ out:
static struct notifier_block qeth_ip6_notifier = {
qeth_ip6_event,
0
NULL,
};
#endif
@ -8460,7 +8460,7 @@ qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
static struct notifier_block qeth_reboot_notifier = {
qeth_reboot_event,
0
NULL,
};
static int

4
drivers/s390/net/qeth_sys.c
View File

@ -1755,7 +1755,7 @@ qeth_driver_group_store(struct device_driver *ddrv, const char *buf,
}
static DRIVER_ATTR(group, 0200, 0, qeth_driver_group_store);
static DRIVER_ATTR(group, 0200, NULL, qeth_driver_group_store);
static ssize_t
qeth_driver_notifier_register_store(struct device_driver *ddrv, const char *buf,
@ -1783,7 +1783,7 @@ qeth_driver_notifier_register_store(struct device_driver *ddrv, const char *buf,
return count;
}
static DRIVER_ATTR(notifier_register, 0200, 0,
static DRIVER_ATTR(notifier_register, 0200, NULL,
qeth_driver_notifier_register_store);
int

14
drivers/s390/net/smsgiucv.c
View File

@ -66,7 +66,7 @@ smsg_message_pending(iucv_MessagePending *eib, void *pgm_data)
return;
}
rc = iucv_receive(eib->ippathid, eib->ipmsgid, eib->iptrgcls,
msg, len, 0, 0, 0);
msg, len, NULL, NULL, NULL);
if (rc == 0) {
msg[len] = 0;
EBCASC(msg, len);
@ -122,7 +122,7 @@ smsg_unregister_callback(char *prefix, void (*callback)(char *from, char *str))
struct smsg_callback *cb, *tmp;
spin_lock(&smsg_list_lock);
cb = 0;
cb = NULL;
list_for_each_entry(tmp, &smsg_list, list)
if (tmp->callback == callback &&
strcmp(tmp->prefix, prefix) == 0) {
@ -139,7 +139,7 @@ smsg_exit(void)
{
if (smsg_handle > 0) {
cpcmd("SET SMSG OFF", NULL, 0, NULL);
iucv_sever(smsg_pathid, 0);
iucv_sever(smsg_pathid, NULL);
iucv_unregister_program(smsg_handle);
driver_unregister(&smsg_driver);
}
@ -162,19 +162,19 @@ smsg_init(void)
return rc;
}
smsg_handle = iucv_register_program("SMSGIUCV ", "*MSG ",
pgmmask, &smsg_ops, 0);
pgmmask, &smsg_ops, NULL);
if (!smsg_handle) {
printk(KERN_ERR "SMSGIUCV: failed to register to iucv");
driver_unregister(&smsg_driver);
return -EIO; /* better errno ? */
}
rc = iucv_connect (&smsg_pathid, 255, 0, "*MSG ", 0, 0, 0, 0,
smsg_handle, 0);
rc = iucv_connect (&smsg_pathid, 255, NULL, "*MSG ", NULL, 0,
NULL, NULL, smsg_handle, NULL);
if (rc) {
printk(KERN_ERR "SMSGIUCV: failed to connect to *MSG");
iucv_unregister_program(smsg_handle);
driver_unregister(&smsg_driver);
smsg_handle = 0;
smsg_handle = NULL;
return -EIO;
}
cpcmd("SET SMSG IUCV", NULL, 0, NULL);

10
drivers/s390/s390mach.c
View File

@ -111,6 +111,16 @@ repeat:
break;
case CRW_RSC_CPATH:
pr_debug("source is channel path %02X\n", crw[0].rsid);
/*
* Check for solicited machine checks. These are
* created by reset channel path and need not be
* reported to the common I/O layer.
*/
if (crw[chain].slct) {
DBG(KERN_INFO"solicited machine check for "
"channel path %02X\n", crw[0].rsid);
break;
}
switch (crw[0].erc) {
case CRW_ERC_IPARM: /* Path has come. */
ret = chp_process_crw(crw[0].rsid, 1);

2
drivers/s390/scsi/zfcp_fsf.c
View File

@ -2227,7 +2227,7 @@ zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action,
/* setup new FSF request */
retval = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA,
erp_action ? ZFCP_REQ_AUTO_CLEANUP : 0,
0, &lock_flags, &fsf_req);
NULL, &lock_flags, &fsf_req);
if (retval < 0) {
ZFCP_LOG_INFO("error: Out of resources. Could not create an "
"exchange port data request for"

47
drivers/s390/scsi/zfcp_scsi.c
View File

@ -44,30 +44,29 @@ struct scsi_transport_template *zfcp_transport_template;
struct zfcp_data zfcp_data = {
.scsi_host_template = {
name: ZFCP_NAME,
proc_name: "zfcp",
proc_info: NULL,
detect: NULL,
slave_alloc: zfcp_scsi_slave_alloc,
slave_configure: zfcp_scsi_slave_configure,
slave_destroy: zfcp_scsi_slave_destroy,
queuecommand: zfcp_scsi_queuecommand,
eh_abort_handler: zfcp_scsi_eh_abort_handler,
eh_device_reset_handler: zfcp_scsi_eh_device_reset_handler,
eh_bus_reset_handler: zfcp_scsi_eh_bus_reset_handler,
eh_host_reset_handler: zfcp_scsi_eh_host_reset_handler,
/* FIXME(openfcp): Tune */
can_queue: 4096,
this_id: -1,
/*
* FIXME:
* one less? can zfcp_create_sbale cope with it?
*/
sg_tablesize: ZFCP_MAX_SBALES_PER_REQ,
cmd_per_lun: 1,
unchecked_isa_dma: 0,
use_clustering: 1,
sdev_attrs: zfcp_sysfs_sdev_attrs,
.name = ZFCP_NAME,
.proc_name = "zfcp",
.proc_info = NULL,
.detect = NULL,
.slave_alloc = zfcp_scsi_slave_alloc,
.slave_configure = zfcp_scsi_slave_configure,
.slave_destroy = zfcp_scsi_slave_destroy,
.queuecommand = zfcp_scsi_queuecommand,
.eh_abort_handler = zfcp_scsi_eh_abort_handler,
.eh_device_reset_handler = zfcp_scsi_eh_device_reset_handler,
.eh_bus_reset_handler = zfcp_scsi_eh_bus_reset_handler,
.eh_host_reset_handler = zfcp_scsi_eh_host_reset_handler,
.can_queue = 4096,
.this_id = -1,
/*
* FIXME:
* one less? can zfcp_create_sbale cope with it?
*/
.sg_tablesize = ZFCP_MAX_SBALES_PER_REQ,
.cmd_per_lun = 1,
.unchecked_isa_dma = 0,
.use_clustering = 1,
.sdev_attrs = zfcp_sysfs_sdev_attrs,
},
.driver_version = ZFCP_VERSION,
/* rest initialised with zeros */

11
include/asm-s390/bug.h
View File

@ -5,9 +5,18 @@
#ifdef CONFIG_BUG
static inline __attribute__((noreturn)) void __do_illegal_op(void)
{
#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3)
__builtin_trap();
#else
asm volatile(".long 0");
#endif
}
#define BUG() do { \
printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
__builtin_trap(); \
__do_illegal_op(); \
} while (0)
#define HAVE_ARCH_BUG

2
include/asm-s390/ccwdev.h
View File

@ -63,7 +63,7 @@ ccw_device_id_match(const struct ccw_device_id *array,
return id;
}
return 0;
return NULL;
}
/* The struct ccw device is our replacement for the globally accessible

2
include/asm-s390/cio.h
View File

@ -276,6 +276,8 @@ extern void wait_cons_dev(void);
extern void clear_all_subchannels(void);
extern void cio_reset_channel_paths(void);
extern void css_schedule_reprobe(void);
#endif

5
include/asm-s390/futex.h
View File

@ -98,9 +98,10 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
if (! access_ok (VERIFY_WRITE, uaddr, sizeof(int)))
return -EFAULT;
asm volatile(" cs %1,%4,0(%5)\n"
asm volatile(" sacf 256\n"
" cs %1,%4,0(%5)\n"
"0: lr %0,%1\n"
"1:\n"
"1: sacf 0\n"
#ifndef __s390x__
".section __ex_table,\"a\"\n"
" .align 4\n"

16
include/asm-s390/irqflags.h
View File

@ -25,16 +25,22 @@
__flags; \
})
#define raw_local_save_flags(x) \
__asm__ __volatile__("stosm 0(%1),0" : "=m" (x) : "a" (&x), "m" (x) )
#define raw_local_save_flags(x) \
do { \
typecheck(unsigned long, x); \
__asm__ __volatile__("stosm 0(%1),0" : "=m" (x) : "a" (&x), "m" (x) ); \
} while (0)
#define raw_local_irq_restore(x) \
__asm__ __volatile__("ssm 0(%0)" : : "a" (&x), "m" (x) : "memory")
#define raw_local_irq_restore(x) \
do { \
typecheck(unsigned long, x); \
__asm__ __volatile__("ssm 0(%0)" : : "a" (&x), "m" (x) : "memory"); \
} while (0)
#define raw_irqs_disabled() \
({ \
unsigned long flags; \
local_save_flags(flags); \
raw_local_save_flags(flags); \
!((flags >> __FLAG_SHIFT) & 3); \
})

2
include/asm-s390/pgalloc.h
View File

@ -142,7 +142,7 @@ pte_alloc_one(struct mm_struct *mm, unsigned long vmaddr)
pte_t *pte = pte_alloc_one_kernel(mm, vmaddr);
if (pte)
return virt_to_page(pte);
return 0;
return NULL;
}
static inline void pte_free_kernel(pte_t *pte)

16
include/asm-s390/processor.h
View File

@ -199,15 +199,13 @@ unsigned long get_wchan(struct task_struct *p);
/*
* Give up the time slice of the virtual PU.
*/
#ifndef __s390x__
# define cpu_relax() asm volatile ("diag 0,0,68" : : : "memory")
#else /* __s390x__ */
# define cpu_relax() \
do { \
if (MACHINE_HAS_DIAG44) \
asm volatile ("diag 0,0,68" : : : "memory"); \
} while (0)
#endif /* __s390x__ */
static inline void cpu_relax(void)
{
if (MACHINE_HAS_DIAG44)
asm volatile ("diag 0,0,68" : : : "memory");
else
barrier();
}
/*
* Set PSW to specified value.

3
include/asm-s390/setup.h
View File

@ -40,15 +40,16 @@ extern unsigned long machine_flags;
#define MACHINE_IS_VM (machine_flags & 1)
#define MACHINE_IS_P390 (machine_flags & 4)
#define MACHINE_HAS_MVPG (machine_flags & 16)
#define MACHINE_HAS_DIAG44 (machine_flags & 32)
#define MACHINE_HAS_IDTE (machine_flags & 128)
#ifndef __s390x__
#define MACHINE_HAS_IEEE (machine_flags & 2)
#define MACHINE_HAS_CSP (machine_flags & 8)
#define MACHINE_HAS_DIAG44 (1)
#else /* __s390x__ */
#define MACHINE_HAS_IEEE (1)
#define MACHINE_HAS_CSP (1)
#define MACHINE_HAS_DIAG44 (machine_flags & 32)
#endif /* __s390x__ */