Merge tag 'please-pull-apei' into x86/ras

APEI is currently implemented so that it depends on x86 hardware.
The primary dependency is that GHES uses the x86 NMI for hardware
error notification and MCE for memory error handling. These patches
remove that dependency.

Other APEI features such as error reporting via external IRQ, error
serialization, or error injection, do not require changes to use them
on non-x86 architectures.

The following patch set eliminates the APEI Kconfig x86 dependency
by making these changes:
- treat NMI notification as GHES architecture - HAVE_ACPI_APEI_NMI
- group and wrap around #ifdef CONFIG_HAVE_ACPI_APEI_NMI code which
  is used only for NMI path
- identify architectural boxes and abstract it accordingly (tlb flush and MCE)
- rework ioremap for both IRQ and NMI context

NMI code is kept in ghes.c file since NMI and IRQ context are tightly coupled.

Note, these patches introduce no functional changes for x86. The NMI notification
feature is hard selected for x86. Architectures that want to use this
feature should also provide NMI code infrastructure.

3 files changed, 11 insertions, 22 deletions

diff --git a/drivers/isdn/hisax/Kconfig b/drivers/isdn/hisax/Kconfig
index d9edcc94c2a..97465ac5a2d 100644
--- a/drivers/isdn/hisax/Kconfig
+++ b/drivers/isdn/hisax/Kconfig
@@ -16,7 +16,7 @@ config ISDN_DRV_HISAX
 	  also to the configuration option of the driver for your particular
 	  card, below.
 
-if ISDN_DRV_HISAX!=n
+if ISDN_DRV_HISAX
 
 comment "D-channel protocol features"
 
@@ -348,10 +348,6 @@ config HISAX_ENTERNOW_PCI
 	  This enables HiSax support for the Formula-n enter:now PCI
 	  ISDN card.
 
-endif
-
-if ISDN_DRV_HISAX
-
 config HISAX_DEBUG
 	bool "HiSax debugging"
 	help
@@ -420,11 +416,6 @@ config HISAX_FRITZ_PCIPNP
 	  (the latter also needs you to select "ISA Plug and Play support"
 	  from the menu "Plug and Play configuration")
 
-config HISAX_AVM_A1_PCMCIA
-	bool
-	depends on HISAX_AVM_A1_CS
-	default y
-
 endif
 
 endmenu
diff --git a/drivers/isdn/hisax/l3ni1.c b/drivers/isdn/hisax/l3ni1.c
index 0df6691d045..8dc791bfaa6 100644
--- a/drivers/isdn/hisax/l3ni1.c
+++ b/drivers/isdn/hisax/l3ni1.c
@@ -2059,13 +2059,17 @@ static int l3ni1_cmd_global(struct PStack *st, isdn_ctrl *ic)
 			memcpy(p, ic->parm.ni1_io.data, ic->parm.ni1_io.datalen); /* copy data */
 			l = (p - temp) + ic->parm.ni1_io.datalen; /* total length */
 
-			if (ic->parm.ni1_io.timeout > 0)
-				if (!(pc = ni1_new_l3_process(st, -1)))
-				{ free_invoke_id(st, id);
+			if (ic->parm.ni1_io.timeout > 0) {
+				pc = ni1_new_l3_process(st, -1);
+				if (!pc) {
+					free_invoke_id(st, id);
 					return (-2);
 				}
-			pc->prot.ni1.ll_id = ic->parm.ni1_io.ll_id; /* remember id */
-			pc->prot.ni1.proc = ic->parm.ni1_io.proc; /* and procedure */
+				/* remember id */
+				pc->prot.ni1.ll_id = ic->parm.ni1_io.ll_id;
+				/* and procedure */
+				pc->prot.ni1.proc = ic->parm.ni1_io.proc;
+			}
 
 			if (!(skb = l3_alloc_skb(l)))
 			{ free_invoke_id(st, id);
diff --git a/drivers/isdn/i4l/isdn_ppp.c b/drivers/isdn/i4l/isdn_ppp.c
index 61ac6323744..a333b7f798d 100644
--- a/drivers/isdn/i4l/isdn_ppp.c
+++ b/drivers/isdn/i4l/isdn_ppp.c
@@ -442,7 +442,7 @@ static int get_filter(void __user *arg, struct sock_filter **p)
 {
 	struct sock_fprog uprog;
 	struct sock_filter *code = NULL;
-	int len, err;
+	int len;
 
 	if (copy_from_user(&uprog, arg, sizeof(uprog)))
 		return -EFAULT;
@@ -458,12 +458,6 @@ static int get_filter(void __user *arg, struct sock_filter **p)
 	if (IS_ERR(code))
 		return PTR_ERR(code);
 
-	err = sk_chk_filter(code, uprog.len);
-	if (err) {
-		kfree(code);
-		return err;
-	}
-
 	*p = code;
 	return uprog.len;
 }