linux-kernel - [PATCH] pch_phub: Build context save/restore only for PM

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Date:	Thu,  2 Oct 2014 09:26:16 +0200
From:	Thierry Reding <thierry.reding@...il.com>
To:	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] pch_phub: Build context save/restore only for PM

From: Thierry Reding <treding@...dia.com>

The pch_phub_save_reg_conf() and pch_phub_restore_reg_conf() functions
are only used for suspend/resume support (i.e. when PM is enabled). If
PM is disabled they don't need to be built.

Signed-off-by: Thierry Reding <treding@...dia.com>
---
 drivers/misc/pch_phub.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/misc/pch_phub.c b/drivers/misc/pch_phub.c
index 956597321d2a..9a17a9bab8d6 100644
--- a/drivers/misc/pch_phub.c
+++ b/drivers/misc/pch_phub.c
@@ -158,6 +158,7 @@ static void pch_phub_read_modify_write_reg(struct pch_phub_reg *chip,
 	iowrite32(((ioread32(reg_addr) & ~mask)) | data, reg_addr);
 }
 
+#ifdef CONFIG_PM
 /* pch_phub_save_reg_conf - saves register configuration */
 static void pch_phub_save_reg_conf(struct pci_dev *pdev)
 {
@@ -280,6 +281,7 @@ static void pch_phub_restore_reg_conf(struct pci_dev *pdev)
 	if ((chip->ioh_type == 2) || (chip->ioh_type == 4))
 		iowrite32(chip->funcsel_reg, p + FUNCSEL_REG_OFFSET);
 }
+#endif
 
 /**
  * pch_phub_read_serial_rom() - Reading Serial ROM
-- 
2.1.0

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