linux-kernel - [PATCH] tpm: tpm_tis: Fix compile problems with CONFIG_PM_SLEEP/CONFIG

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Message-Id: <1383536898-29116-1-git-send-email-jgunthorpe@obsidianresearch.com>
Date:	Sun,  3 Nov 2013 20:48:18 -0700
From:	Jason Gunthorpe <jgunthorpe@...idianresearch.com>
To:	tpmdd-devel@...ts.sourceforge.net, Peter Huewe <peterhuewe@....de>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] tpm: tpm_tis: Fix compile problems with CONFIG_PM_SLEEP/CONFIG_PNP

If CONFIG_PM_SLEEP=n, CONFIG_PNP=y we get this warning:

drivers/char/tpm/tpm_tis.c:706:13: warning: 'tpm_tis_reenable_interrupts' defined but not used [-Wunused-function]

This seems to have been introduced in a2fa3fb0d 'tpm: convert tpm_tis driver
to use dev_pm_ops from legacy pm_ops'

Also, unpon reviewing, the #ifdefs around tpm_tis_pm are not right, the first
reference is protected, the second is not. tpm_tis_pm is always defined so we can drop
the #ifdef.

Signed-off-by: Jason Gunthorpe <jgunthorpe@...idianresearch.com>
---
 drivers/char/tpm/tpm_tis.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index 1b74459..0732a1e 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -743,7 +743,7 @@ out_err:
 	return rc;
 }
 
-#if defined(CONFIG_PNP) || defined(CONFIG_PM_SLEEP)
+#ifdef CONFIG_PM_SLEEP
 static void tpm_tis_reenable_interrupts(struct tpm_chip *chip)
 {
 	u32 intmask;
@@ -764,9 +764,7 @@ static void tpm_tis_reenable_interrupts(struct tpm_chip *chip)
 	iowrite32(intmask,
 		  chip->vendor.iobase + TPM_INT_ENABLE(chip->vendor.locality));
 }
-#endif
 
-#ifdef CONFIG_PM_SLEEP
 static int tpm_tis_resume(struct device *dev)
 {
 	struct tpm_chip *chip = dev_get_drvdata(dev);
@@ -835,11 +833,9 @@ static struct pnp_driver tis_pnp_driver = {
 	.id_table = tpm_pnp_tbl,
 	.probe = tpm_tis_pnp_init,
 	.remove = tpm_tis_pnp_remove,
-#ifdef CONFIG_PM_SLEEP
 	.driver	= {
 		.pm = &tpm_tis_pm,
 	},
-#endif
 };
 
 #define TIS_HID_USR_IDX sizeof(tpm_pnp_tbl)/sizeof(struct pnp_device_id) -2
-- 
1.8.1.2

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