diff mbox series

[1/4] firmware: psci: Export a couple of suspend symbols

Message ID 20220122035421.4086618-2-f.fainelli@gmail.com (mailing list archive)
State New, archived
Headers show
Series Broadcom STB PM PSCI extensions | expand

Commit Message

Florian Fainelli Jan. 22, 2022, 3:54 a.m. UTC
Export psci_system_suspend_enter() and psci_cpu_suspend_enter() for
the Broadcom STB PSCI extension to be usable and built as a loadable
module.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/firmware/psci/psci.c | 9 ++++++++-
 include/linux/psci.h         | 2 ++
 2 files changed, 10 insertions(+), 1 deletion(-)

Comments

kernel test robot Jan. 22, 2022, 12:22 p.m. UTC | #1
Hi Florian,

I love your patch! Yet something to improve:

[auto build test ERROR on arm/for-next]
[also build test ERROR on soc/for-next arm64/for-next/core clk/clk-next linus/master v5.16 next-20220121]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Florian-Fainelli/Broadcom-STB-PM-PSCI-extensions/20220122-115551
base:   git://git.armlinux.org.uk/~rmk/linux-arm.git for-next
config: arm64-randconfig-r011-20220120 (https://download.01.org/0day-ci/archive/20220122/202201221911.EEIlXDWO-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 7b3d30728816403d1fd73cc5082e9fb761262bce)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://github.com/0day-ci/linux/commit/488fbdb7de4d39409045b679db3e370600a774d4
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Florian-Fainelli/Broadcom-STB-PM-PSCI-extensions/20220122-115551
        git checkout 488fbdb7de4d39409045b679db3e370600a774d4
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: cpu_suspend
   >>> referenced by psci.c
   >>> firmware/psci/psci.o:(psci_system_suspend_enter) in archive drivers/built-in.a
--
>> ld.lld: error: undefined symbol: cpu_resume
   >>> referenced by psci.c
   >>> firmware/psci/psci.o:(psci_system_suspend) in archive drivers/built-in.a
   >>> referenced by psci.c
   >>> firmware/psci/psci.o:(psci_system_suspend) in archive drivers/built-in.a

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
diff mbox series

Patch

diff --git a/drivers/firmware/psci/psci.c b/drivers/firmware/psci/psci.c
index cfb448eabdaa..9a60e340c248 100644
--- a/drivers/firmware/psci/psci.c
+++ b/drivers/firmware/psci/psci.c
@@ -355,7 +355,13 @@  int psci_cpu_suspend_enter(u32 state)
 
 	return ret;
 }
+#else
+int psci_cpu_suspend_enter(u32 state)
+{
+	return -EOPNOTSUPP;
+}
 #endif
+EXPORT_SYMBOL_GPL(psci_cpu_suspend_enter);
 
 static int psci_system_suspend(unsigned long unused)
 {
@@ -365,10 +371,11 @@  static int psci_system_suspend(unsigned long unused)
 			      pa_cpu_resume, 0, 0);
 }
 
-static int psci_system_suspend_enter(suspend_state_t state)
+int psci_system_suspend_enter(suspend_state_t state)
 {
 	return cpu_suspend(0, psci_system_suspend);
 }
+EXPORT_SYMBOL_GPL(psci_system_suspend_enter);
 
 static const struct platform_suspend_ops psci_suspend_ops = {
 	.valid          = suspend_valid_only_mem,
diff --git a/include/linux/psci.h b/include/linux/psci.h
index 4ca0060a3fc4..ffeba6b08e10 100644
--- a/include/linux/psci.h
+++ b/include/linux/psci.h
@@ -9,6 +9,7 @@ 
 
 #include <linux/arm-smccc.h>
 #include <linux/init.h>
+#include <linux/suspend.h>
 #include <linux/types.h>
 
 #define PSCI_POWER_STATE_TYPE_STANDBY		0
@@ -17,6 +18,7 @@ 
 bool psci_tos_resident_on(int cpu);
 
 int psci_cpu_suspend_enter(u32 state);
+int psci_system_suspend_enter(suspend_state_t state);
 bool psci_power_state_is_valid(u32 state);
 int psci_set_osi_mode(bool enable);
 bool psci_has_osi_support(void);