[patch 17/32] [PATCH] Replace ENOTSUPP usage with EOPNOTSUPP

From: Martin Schwidefsky
Date: Wed Feb 24 2010 - 03:48:44 EST


From: Heiko Carstens <heiko.carstens@xxxxxxxxxx>

ENOTSUPP is not supposed to leak to userspace so lets just use
EOPNOTSUPP everywhere.
Doesn't fix a bug, but makes future reviews easier.

Signed-off-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Signed-off-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
---

arch/s390/hypfs/hypfs_diag.c | 4 ++--
arch/s390/kernel/ipl.c | 2 +-
arch/s390/kvm/diag.c | 4 ++--
arch/s390/kvm/intercept.c | 18 +++++++++---------
arch/s390/kvm/interrupt.c | 2 +-
arch/s390/kvm/kvm-s390.c | 2 +-
arch/s390/kvm/priv.c | 2 +-
arch/s390/kvm/sigp.c | 4 ++--
arch/s390/mm/extmem.c | 12 ++++++------
9 files changed, 25 insertions(+), 25 deletions(-)

Index: quilt-2.6/arch/s390/hypfs/hypfs_diag.c
===================================================================
--- quilt-2.6.orig/arch/s390/hypfs/hypfs_diag.c 2010-02-24 09:28:13.000000000 +0100
+++ quilt-2.6/arch/s390/hypfs/hypfs_diag.c 2010-02-24 09:44:26.000000000 +0100
@@ -488,7 +488,7 @@

static int diag224(void *ptr)
{
- int rc = -ENOTSUPP;
+ int rc = -EOPNOTSUPP;

asm volatile(
" diag %1,%2,0x224\n"
@@ -507,7 +507,7 @@
return -ENOMEM;
if (diag224(diag224_cpu_names)) {
kfree(diag224_cpu_names);
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
}
EBCASC(diag224_cpu_names + 16, (*diag224_cpu_names + 1) * 16);
return 0;
Index: quilt-2.6/arch/s390/kernel/ipl.c
===================================================================
--- quilt-2.6.orig/arch/s390/kernel/ipl.c 2010-02-24 09:44:25.000000000 +0100
+++ quilt-2.6/arch/s390/kernel/ipl.c 2010-02-24 09:44:26.000000000 +0100
@@ -1592,7 +1592,7 @@
static int vmcmd_init(void)
{
if (!MACHINE_IS_VM)
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
vmcmd_kset = kset_create_and_add("vmcmd", NULL, firmware_kobj);
if (!vmcmd_kset)
return -ENOMEM;
Index: quilt-2.6/arch/s390/kvm/diag.c
===================================================================
--- quilt-2.6.orig/arch/s390/kvm/diag.c 2010-02-24 09:28:13.000000000 +0100
+++ quilt-2.6/arch/s390/kvm/diag.c 2010-02-24 09:44:26.000000000 +0100
@@ -39,7 +39,7 @@
vcpu->run->s390_reset_flags = 0;
break;
default:
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
}

atomic_clear_mask(CPUSTAT_RUNNING, &vcpu->arch.sie_block->cpuflags);
@@ -62,6 +62,6 @@
case 0x308:
return __diag_ipl_functions(vcpu);
default:
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
}
}
Index: quilt-2.6/arch/s390/kvm/intercept.c
===================================================================
--- quilt-2.6.orig/arch/s390/kvm/intercept.c 2010-02-24 09:28:13.000000000 +0100
+++ quilt-2.6/arch/s390/kvm/intercept.c 2010-02-24 09:44:26.000000000 +0100
@@ -32,7 +32,7 @@

vcpu->stat.instruction_lctlg++;
if ((vcpu->arch.sie_block->ipb & 0xff) != 0x2f)
- return -ENOTSUPP;
+ return -EOPNOTSUPP;

useraddr = disp2;
if (base2)
@@ -138,7 +138,7 @@
rc = __kvm_s390_vcpu_store_status(vcpu,
KVM_S390_STORE_STATUS_NOADDR);
if (rc >= 0)
- rc = -ENOTSUPP;
+ rc = -EOPNOTSUPP;
}

if (vcpu->arch.local_int.action_bits & ACTION_RELOADVCPU_ON_STOP) {
@@ -150,7 +150,7 @@
if (vcpu->arch.local_int.action_bits & ACTION_STOP_ON_STOP) {
vcpu->arch.local_int.action_bits &= ~ACTION_STOP_ON_STOP;
VCPU_EVENT(vcpu, 3, "%s", "cpu stopped");
- rc = -ENOTSUPP;
+ rc = -EOPNOTSUPP;
}

spin_unlock_bh(&vcpu->arch.local_int.lock);
@@ -171,9 +171,9 @@
2*PAGE_SIZE);
if (rc)
/* user will receive sigsegv, exit to user */
- rc = -ENOTSUPP;
+ rc = -EOPNOTSUPP;
} else
- rc = -ENOTSUPP;
+ rc = -EOPNOTSUPP;

if (rc)
VCPU_EVENT(vcpu, 2, "unhandled validity intercept code %d",
@@ -189,7 +189,7 @@
handler = instruction_handlers[vcpu->arch.sie_block->ipa >> 8];
if (handler)
return handler(vcpu);
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
}

static int handle_prog(struct kvm_vcpu *vcpu)
@@ -206,7 +206,7 @@
rc = handle_instruction(vcpu);
rc2 = handle_prog(vcpu);

- if (rc == -ENOTSUPP)
+ if (rc == -EOPNOTSUPP)
vcpu->arch.sie_block->icptcode = 0x04;
if (rc)
return rc;
@@ -231,9 +231,9 @@
u8 code = vcpu->arch.sie_block->icptcode;

if (code & 3 || (code >> 2) >= ARRAY_SIZE(intercept_funcs))
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
func = intercept_funcs[code >> 2];
if (func)
return func(vcpu);
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
}
Index: quilt-2.6/arch/s390/kvm/interrupt.c
===================================================================
--- quilt-2.6.orig/arch/s390/kvm/interrupt.c 2010-02-24 09:28:13.000000000 +0100
+++ quilt-2.6/arch/s390/kvm/interrupt.c 2010-02-24 09:44:26.000000000 +0100
@@ -342,7 +342,7 @@
if (psw_interrupts_disabled(vcpu)) {
VCPU_EVENT(vcpu, 3, "%s", "disabled wait");
__unset_cpu_idle(vcpu);
- return -ENOTSUPP; /* disabled wait */
+ return -EOPNOTSUPP; /* disabled wait */
}

if (psw_extint_disabled(vcpu) ||
Index: quilt-2.6/arch/s390/kvm/kvm-s390.c
===================================================================
--- quilt-2.6.orig/arch/s390/kvm/kvm-s390.c 2010-02-24 09:44:24.000000000 +0100
+++ quilt-2.6/arch/s390/kvm/kvm-s390.c 2010-02-24 09:44:26.000000000 +0100
@@ -543,7 +543,7 @@
rc = -EINTR;
}

- if (rc == -ENOTSUPP) {
+ if (rc == -EOPNOTSUPP) {
/* intercept cannot be handled in-kernel, prepare kvm-run */
kvm_run->exit_reason = KVM_EXIT_S390_SIEIC;
kvm_run->s390_sieic.icptcode = vcpu->arch.sie_block->icptcode;
Index: quilt-2.6/arch/s390/kvm/priv.c
===================================================================
--- quilt-2.6.orig/arch/s390/kvm/priv.c 2010-02-24 09:28:13.000000000 +0100
+++ quilt-2.6/arch/s390/kvm/priv.c 2010-02-24 09:44:26.000000000 +0100
@@ -323,5 +323,5 @@
else
return handler(vcpu);
}
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
}
Index: quilt-2.6/arch/s390/kvm/sigp.c
===================================================================
--- quilt-2.6.orig/arch/s390/kvm/sigp.c 2010-02-24 09:28:13.000000000 +0100
+++ quilt-2.6/arch/s390/kvm/sigp.c 2010-02-24 09:44:26.000000000 +0100
@@ -172,7 +172,7 @@
rc = 0; /* order accepted */
break;
default:
- rc = -ENOTSUPP;
+ rc = -EOPNOTSUPP;
}
return rc;
}
@@ -293,7 +293,7 @@
vcpu->stat.instruction_sigp_restart++;
/* user space must know about restart */
default:
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
}

if (rc < 0)
Index: quilt-2.6/arch/s390/mm/extmem.c
===================================================================
--- quilt-2.6.orig/arch/s390/mm/extmem.c 2010-02-24 09:28:13.000000000 +0100
+++ quilt-2.6/arch/s390/mm/extmem.c 2010-02-24 09:44:26.000000000 +0100
@@ -309,7 +309,7 @@
}
#endif
if (qout->segcnt > 6) {
- rc = -ENOTSUPP;
+ rc = -EOPNOTSUPP;
goto out_free;
}

@@ -324,11 +324,11 @@
for (i=0; i<qout->segcnt; i++) {
if (((qout->range[i].start & 0xff) != SEG_TYPE_EW) &&
((qout->range[i].start & 0xff) != SEG_TYPE_EN)) {
- rc = -ENOTSUPP;
+ rc = -EOPNOTSUPP;
goto out_free;
}
if (start != qout->range[i].start >> PAGE_SHIFT) {
- rc = -ENOTSUPP;
+ rc = -EOPNOTSUPP;
goto out_free;
}
start = (qout->range[i].end >> PAGE_SHIFT) + 1;
@@ -357,7 +357,7 @@
* -ENOSYS : we are not running on VM
* -EIO : could not perform query diagnose
* -ENOENT : no such segment
- * -ENOTSUPP: multi-part segment cannot be used with linux
+ * -EOPNOTSUPP: multi-part segment cannot be used with linux
* -ENOMEM : out of memory
* 0 .. 6 : type of segment as defined in include/asm-s390/extmem.h
*/
@@ -515,7 +515,7 @@
* -ENOSYS : we are not running on VM
* -EIO : could not perform query or load diagnose
* -ENOENT : no such segment
- * -ENOTSUPP: multi-part segment cannot be used with linux
+ * -EOPNOTSUPP: multi-part segment cannot be used with linux
* -ENOSPC : segment cannot be used (overlaps with storage)
* -EBUSY : segment can temporarily not be used (overlaps with dcss)
* -ERANGE : segment cannot be used (exceeds kernel mapping range)
@@ -742,7 +742,7 @@
pr_err("Loading or querying DCSS %s resulted in a "
"hardware error\n", seg_name);
break;
- case -ENOTSUPP:
+ case -EOPNOTSUPP:
pr_err("DCSS %s has multiple page ranges and cannot be "
"loaded or queried\n", seg_name);
break;

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