[PATCH -next] tpm_tis: fix build when ACPI is not enabled

[Randy Dunlap]

From: Randy Dunlap <rdunlap@xxxxxxxxxxxx>

Fix tpm_tis.c build when CONFIG_ACPI is not enabled by providing
a stub function.  Fixes many build errors/warnings:

drivers/char/tpm/tpm_tis.c:89: error: dereferencing pointer to incomplete type
drivers/char/tpm/tpm_tis.c:89: warning: type defaults to 'int' in declaration of 'type name'
drivers/char/tpm/tpm_tis.c:89: error: request for member 'list' in something not a structure or union
drivers/char/tpm/tpm_tis.c:89: warning: type defaults to 'int' in declaration of '__mptr'
drivers/char/tpm/tpm_tis.c:89: error: dereferencing pointer to incomplete type
drivers/char/tpm/tpm_tis.c:89: error: dereferencing pointer to incomplete type
drivers/char/tpm/tpm_tis.c:89: error: dereferencing pointer to incomplete type
drivers/char/tpm/tpm_tis.c:89: warning: type defaults to 'int' in declaration of 'type name'
drivers/char/tpm/tpm_tis.c:89: error: request for member 'list' in something not a structure or union
drivers/char/tpm/tpm_tis.c:89: warning: type defaults to 'int' in declaration of 'type name'
drivers/char/tpm/tpm_tis.c:89: error: dereferencing pointer to incomplete type
drivers/char/tpm/tpm_tis.c:89: error: dereferencing pointer to incomplete type
drivers/char/tpm/tpm_tis.c:89: error: dereferencing pointer to incomplete type
drivers/char/tpm/tpm_tis.c:89: warning: type defaults to 'int' in declaration of 'type name'
drivers/char/tpm/tpm_tis.c:89: error: request for member 'list' in something not a structure or union
drivers/char/tpm/tpm_tis.c:89: warning: type defaults to 'int' in declaration of '__mptr'
drivers/char/tpm/tpm_tis.c:89: error: dereferencing pointer to incomplete type
drivers/char/tpm/tpm_tis.c:89: error: dereferencing pointer to incomplete type
drivers/char/tpm/tpm_tis.c:89: error: dereferencing pointer to incomplete type
drivers/char/tpm/tpm_tis.c:89: warning: type defaults to 'int' in declaration of 'type name'
drivers/char/tpm/tpm_tis.c:89: error: request for member 'list' in something not a structure or union
drivers/char/tpm/tpm_tis.c:89: warning: type defaults to 'int' in declaration of 'type name'
drivers/char/tpm/tpm_tis.c:90: error: dereferencing pointer to incomplete type

Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxx>
Cc: Leendert van Doorn <leendert@xxxxxxxxxxxxxx>
---
 drivers/char/tpm/tpm_tis.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

--- linux-next-20110727.orig/drivers/char/tpm/tpm_tis.c
+++ linux-next-20110727/drivers/char/tpm/tpm_tis.c
@@ -80,7 +80,7 @@ enum tis_defaults {
 static LIST_HEAD(tis_chips);
 static DEFINE_SPINLOCK(tis_lock);
 
-#ifdef CONFIG_PNP
+#if defined(CONFIG_PNP) && defined(CONFIG_ACPI)
 static int is_itpm(struct pnp_dev *dev)
 {
 	struct acpi_device *acpi = pnp_acpi_device(dev);
@@ -93,6 +93,11 @@ static int is_itpm(struct pnp_dev *dev)
 
 	return 0;
 }
+#else
+static inline int is_itpm(struct pnp_dev *dev)
+{
+	return 0;
+}
 #endif
 
 static int check_locality(struct tpm_chip *chip, int l)
--
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