[patch 16/18] PNP: remove extra 0x100 bit from option priority

[Bjorn Helgaas <bjorn.helgaas@hp.com>]

[-- Attachment #1: pnp-remove-extra-priority-bits --]
[-- Type: text/plain, Size: 3231 bytes --]

When building resource options, ISAPNP and PNPBIOS set the priority
to something like "0x100 | PNP_RES_PRIORITY_ACCEPTABLE", but we 
immediately mask off the 0x100 again in pnp_build_option(), so that
bit looks superfluous.

Thanks to Rene Herman <rene.herman@gmail.com> for pointing this out.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>

Index: work10/drivers/pnp/isapnp/core.c
===================================================================
--- work10.orig/drivers/pnp/isapnp/core.c	2008-06-02 15:00:07.000000000 -0600
+++ work10/drivers/pnp/isapnp/core.c	2008-06-02 15:00:10.000000000 -0600
@@ -582,7 +582,7 @@ isapnp_parse_name(char *name, unsigned i
 static int __init isapnp_create_device(struct pnp_card *card,
 				       unsigned short size)
 {
-	int number = 0, skip = 0, priority = 0, compat = 0;
+	int number = 0, skip = 0, priority, compat = 0;
 	unsigned char type, tmp[17];
 	struct pnp_option *option;
 	struct pnp_dev *dev;
@@ -621,7 +621,6 @@ static int __init isapnp_create_device(s
 			} else {
 				skip = 1;
 			}
-			priority = 0;
 			compat = 0;
 			break;
 		case _STAG_COMPATDEVID:
@@ -650,10 +649,10 @@ static int __init isapnp_create_device(s
 		case _STAG_STARTDEP:
 			if (size > 1)
 				goto __skip;
-			priority = 0x100 | PNP_RES_PRIORITY_ACCEPTABLE;
+			priority = PNP_RES_PRIORITY_ACCEPTABLE;
 			if (size > 0) {
 				isapnp_peek(tmp, size);
-				priority = 0x100 | tmp[0];
+				priority = tmp[0];
 				size = 0;
 			}
 			option = pnp_register_dependent_option(dev, priority);
@@ -663,7 +662,6 @@ static int __init isapnp_create_device(s
 		case _STAG_ENDDEP:
 			if (size != 0)
 				goto __skip;
-			priority = 0;
 			dev_dbg(&dev->dev, "end dependent options\n");
 			break;
 		case _STAG_IOPORT:
Index: work10/drivers/pnp/pnpbios/rsparser.c
===================================================================
--- work10.orig/drivers/pnp/pnpbios/rsparser.c	2008-06-02 15:00:07.000000000 -0600
+++ work10/drivers/pnp/pnpbios/rsparser.c	2008-06-02 15:00:10.000000000 -0600
@@ -315,7 +315,7 @@ pnpbios_parse_resource_option_data(unsig
 					struct pnp_dev *dev)
 {
 	unsigned int len, tag;
-	int priority = 0;
+	int priority;
 	struct pnp_option *option, *option_independent;
 
 	if (!p)
@@ -389,9 +389,9 @@ pnpbios_parse_resource_option_data(unsig
 		case SMALL_TAG_STARTDEP:
 			if (len > 1)
 				goto len_err;
-			priority = 0x100 | PNP_RES_PRIORITY_ACCEPTABLE;
+			priority = PNP_RES_PRIORITY_ACCEPTABLE;
 			if (len > 0)
-				priority = 0x100 | p[1];
+				priority = p[1];
 			option = pnp_register_dependent_option(dev, priority);
 			if (!option)
 				return NULL;
Index: work10/drivers/pnp/pnpacpi/rsparser.c
===================================================================
--- work10.orig/drivers/pnp/pnpacpi/rsparser.c	2008-06-02 15:00:07.000000000 -0600
+++ work10/drivers/pnp/pnpacpi/rsparser.c	2008-06-02 15:00:10.000000000 -0600
@@ -545,7 +545,7 @@ struct acpipnp_parse_option_s {
 static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
 						  void *data)
 {
-	int priority = 0;
+	int priority;
 	struct acpipnp_parse_option_s *parse_data = data;
 	struct pnp_dev *dev = parse_data->dev;
 	struct pnp_option *option = parse_data->option;

--