linux-kernel - [PATCH v2 4/6] ARM: at91: handle CONFIG

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20161020094135.18221-5-alexandre.belloni@free-electrons.com>
Date:   Thu, 20 Oct 2016 11:41:33 +0200
From:   Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To:     Nicolas Ferre <nicolas.ferre@...el.com>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Szemző András <sza@....hu>,
        Alexandre Belloni <alexandre.belloni@...e-electrons.com>
Subject: [PATCH v2 4/6] ARM: at91: handle CONFIG_PM for armv7m configurations

There is currently no PM support for samx7 but the symbol can still be
selected. This avoids compilation issues.

Signed-off-by: Alexandre Belloni <alexandre.belloni@...e-electrons.com>
---
 arch/arm/mach-at91/Kconfig  | 6 ++++++
 arch/arm/mach-at91/Makefile | 3 +--
 arch/arm/mach-at91/samx7.c  | 9 +++++++++
 3 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index bade64e0cb49..34fa561aa853 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -59,6 +59,7 @@ config SOC_AT91RM9200
 	bool "AT91RM9200"
 	depends on ARCH_MULTI_V4T
 	select ATMEL_AIC_IRQ
+	select ATMEL_PM if PM
 	select ATMEL_ST
 	select CPU_ARM920T
 	select HAVE_AT91_USB_CLK
@@ -72,6 +73,7 @@ config SOC_AT91SAM9
 	bool "AT91SAM9"
 	depends on ARCH_MULTI_V5
 	select ATMEL_AIC_IRQ
+	select ATMEL_PM if PM
 	select ATMEL_SDRAMC
 	select CPU_ARM926T
 	select HAVE_AT91_SMD
@@ -130,9 +132,13 @@ config SOC_SAM_V7
 config SOC_SAMA5
 	bool
 	select ATMEL_AIC5_IRQ
+	select ATMEL_PM if PM
 	select ATMEL_SDRAMC
 	select MEMORY
 	select SOC_SAM_V7
 	select SRAM if PM
 
+config ATMEL_PM
+	bool
+
 endif
diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index 84956a18d604..116691714bb8 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -10,8 +10,7 @@ obj-$(CONFIG_SOC_SAMA5)		+= sama5.o
 obj-$(CONFIG_SOC_SAMX7)		+= samx7.o
 
 # Power Management
-obj-$(CONFIG_PM)		+= pm.o
-obj-$(CONFIG_PM)		+= pm_suspend.o
+obj-$(CONFIG_ATMEL_PM)		+= pm.o pm_suspend.o
 
 ifeq ($(CONFIG_CPU_V7),y)
 AFLAGS_pm_suspend.o := -march=armv7-a
diff --git a/arch/arm/mach-at91/samx7.c b/arch/arm/mach-at91/samx7.c
index bd33bc56278e..5bd76cb5076c 100644
--- a/arch/arm/mach-at91/samx7.c
+++ b/arch/arm/mach-at91/samx7.c
@@ -16,6 +16,15 @@
 #include "generic.h"
 #include "soc.h"
 
+#ifdef CONFIG_PM
+/* This function has to be defined for various drivers that are using it */
+int at91_suspend_entering_slow_clock(void)
+{
+	return 0;
+}
+EXPORT_SYMBOL(at91_suspend_entering_slow_clock);
+#endif
+
 static const struct at91_soc samx7_socs[] = {
 	AT91_SOC(SAME70Q21_CIDR_MATCH, SAME70Q21_EXID_MATCH,
 		 "same70q21", "samx7"),
-- 
2.9.3