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[PATCH] cpuidle: mvebu: fix duplicate flags assignment

Arnd Bergmann posted 1 patch 2 years, 8 months ago 
drivers/cpuidle/cpuidle-mvebu-v7.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
[PATCH] cpuidle: mvebu: fix duplicate flags assignment
Posted by Arnd Bergmann 2 years, 8 months ago 
From: Arnd Bergmann <arnd@arndb.de>

The added '.flags' value is sometimes ignored here because
it gets overwritten by another initialization:

drivers/cpuidle/cpuidle-mvebu-v7.c:24:33: error: initialized field overwritten [-Werror=override-init]
   24 | #define MVEBU_V7_FLAG_DEEP_IDLE 0x10000
      |                                 ^~~~~~~
drivers/cpuidle/cpuidle-mvebu-v7.c:69:43: note: in expansion of macro 'MVEBU_V7_FLAG_DEEP_IDLE'
   69 |                 .flags                  = MVEBU_V7_FLAG_DEEP_IDLE,
      |                                           ^~~~~~~~~~~~~~~~~~~~~~~
drivers/cpuidle/cpuidle-mvebu-v7.c:24:33: note: (near initialization for 'armadaxp_idle_driver.states[2].flags')
   24 | #define MVEBU_V7_FLAG_DEEP_IDLE 0x10000
      |                                 ^~~~~~~
drivers/cpuidle/cpuidle-mvebu-v7.c:69:43: note: in expansion of macro 'MVEBU_V7_FLAG_DEEP_IDLE'
   69 |                 .flags                  = MVEBU_V7_FLAG_DEEP_IDLE,
      |                                           ^~~~~~~~~~~~~~~~~~~~~~~
drivers/cpuidle/cpuidle-mvebu-v7.c:24:33: error: initialized field overwritten [-Werror=override-init]
   24 | #define MVEBU_V7_FLAG_DEEP_IDLE 0x10000
      |                                 ^~~~~~~
drivers/cpuidle/cpuidle-mvebu-v7.c:85:43: note: in expansion of macro 'MVEBU_V7_FLAG_DEEP_IDLE'
   85 |                 .flags                  = MVEBU_V7_FLAG_DEEP_IDLE,
      |                                           ^~~~~~~~~~~~~~~~~~~~~~~
drivers/cpuidle/cpuidle-mvebu-v7.c:24:33: note: (near initialization for 'armada370_idle_driver.states[1].flags')
   24 | #define MVEBU_V7_FLAG_DEEP_IDLE 0x10000
      |                                 ^~~~~~~
drivers/cpuidle/cpuidle-mvebu-v7.c:85:43: note: in expansion of macro 'MVEBU_V7_FLAG_DEEP_IDLE'
   85 |                 .flags                  = MVEBU_V7_FLAG_DEEP_IDLE,
      |                                           ^~~~~~~~~~~~~~~~~~~~~~~

Merge the two fields into one.

Fixes: 4ce40e9dbe83 ("cpuidle, armada: Push RCU-idle into driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/cpuidle/cpuidle-mvebu-v7.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/cpuidle/cpuidle-mvebu-v7.c b/drivers/cpuidle/cpuidle-mvebu-v7.c
index 114bd09eebbf..563dba609b98 100644
--- a/drivers/cpuidle/cpuidle-mvebu-v7.c
+++ b/drivers/cpuidle/cpuidle-mvebu-v7.c
@@ -52,21 +52,20 @@ static struct cpuidle_driver armadaxp_idle_driver = {
 	.name			= "armada_xp_idle",
 	.states[0]		= ARM_CPUIDLE_WFI_STATE,
 	.states[1]		= {
-		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.enter			= mvebu_v7_enter_idle,
 		.exit_latency		= 100,
 		.power_usage		= 50,
 		.target_residency	= 1000,
+		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "MV CPU IDLE",
 		.desc			= "CPU power down",
 	},
 	.states[2]		= {
-		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.enter			= mvebu_v7_enter_idle,
 		.exit_latency		= 1000,
 		.power_usage		= 5,
 		.target_residency	= 10000,
-		.flags			= MVEBU_V7_FLAG_DEEP_IDLE,
+		.flags			= MVEBU_V7_FLAG_DEEP_IDLE | CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "MV CPU DEEP IDLE",
 		.desc			= "CPU and L2 Fabric power down",
 	},
@@ -77,12 +76,11 @@ static struct cpuidle_driver armada370_idle_driver = {
 	.name			= "armada_370_idle",
 	.states[0]		= ARM_CPUIDLE_WFI_STATE,
 	.states[1]		= {
-		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.enter			= mvebu_v7_enter_idle,
 		.exit_latency		= 100,
 		.power_usage		= 5,
 		.target_residency	= 1000,
-		.flags			= MVEBU_V7_FLAG_DEEP_IDLE,
+		.flags			= MVEBU_V7_FLAG_DEEP_IDLE | CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "Deep Idle",
 		.desc			= "CPU and L2 Fabric power down",
 	},
@@ -93,11 +91,11 @@ static struct cpuidle_driver armada38x_idle_driver = {
 	.name			= "armada_38x_idle",
 	.states[0]		= ARM_CPUIDLE_WFI_STATE,
 	.states[1]		= {
-		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.enter			= mvebu_v7_enter_idle,
 		.exit_latency		= 10,
 		.power_usage		= 5,
 		.target_residency	= 100,
+		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "Idle",
 		.desc			= "CPU and SCU power down",
 	},
-- 
2.39.0
[tip: sched/core] cpuidle: mvebu: Fix duplicate flags assignment
Posted by tip-bot2 for Arnd Bergmann 2 years, 7 months ago 
The following commit has been merged into the sched/core branch of tip:

Commit-ID:     3b8645e9ec7eb42e7df7a367d6787a3af53f37a9
Gitweb:        https://git.kernel.org/tip/3b8645e9ec7eb42e7df7a367d6787a3af53f37a9
Author:        Arnd Bergmann <arnd@arndb.de>
AuthorDate:    Tue, 17 Jan 2023 17:46:35 +01:00
Committer:     Ingo Molnar <mingo@kernel.org>
CommitterDate: Wed, 18 Jan 2023 12:03:54 +01:00

cpuidle: mvebu: Fix duplicate flags assignment

The added '.flags' value is sometimes ignored here because
it gets overwritten by another initialization:

  drivers/cpuidle/cpuidle-mvebu-v7.c:24:33: error: initialized field overwritten [-Werror=override-init]
     24 | #define MVEBU_V7_FLAG_DEEP_IDLE 0x10000
        |                                 ^~~~~~~
  drivers/cpuidle/cpuidle-mvebu-v7.c:69:43: note: in expansion of macro 'MVEBU_V7_FLAG_DEEP_IDLE'
  ...

Merge the two fields into one.

Fixes: 4ce40e9dbe83 ("cpuidle, armada: Push RCU-idle into driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20230117164642.1672784-1-arnd@kernel.org
---
 drivers/cpuidle/cpuidle-mvebu-v7.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/cpuidle/cpuidle-mvebu-v7.c b/drivers/cpuidle/cpuidle-mvebu-v7.c
index 114bd09..563dba6 100644
--- a/drivers/cpuidle/cpuidle-mvebu-v7.c
+++ b/drivers/cpuidle/cpuidle-mvebu-v7.c
@@ -52,21 +52,20 @@ static struct cpuidle_driver armadaxp_idle_driver = {
 	.name			= "armada_xp_idle",
 	.states[0]		= ARM_CPUIDLE_WFI_STATE,
 	.states[1]		= {
-		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.enter			= mvebu_v7_enter_idle,
 		.exit_latency		= 100,
 		.power_usage		= 50,
 		.target_residency	= 1000,
+		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "MV CPU IDLE",
 		.desc			= "CPU power down",
 	},
 	.states[2]		= {
-		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.enter			= mvebu_v7_enter_idle,
 		.exit_latency		= 1000,
 		.power_usage		= 5,
 		.target_residency	= 10000,
-		.flags			= MVEBU_V7_FLAG_DEEP_IDLE,
+		.flags			= MVEBU_V7_FLAG_DEEP_IDLE | CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "MV CPU DEEP IDLE",
 		.desc			= "CPU and L2 Fabric power down",
 	},
@@ -77,12 +76,11 @@ static struct cpuidle_driver armada370_idle_driver = {
 	.name			= "armada_370_idle",
 	.states[0]		= ARM_CPUIDLE_WFI_STATE,
 	.states[1]		= {
-		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.enter			= mvebu_v7_enter_idle,
 		.exit_latency		= 100,
 		.power_usage		= 5,
 		.target_residency	= 1000,
-		.flags			= MVEBU_V7_FLAG_DEEP_IDLE,
+		.flags			= MVEBU_V7_FLAG_DEEP_IDLE | CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "Deep Idle",
 		.desc			= "CPU and L2 Fabric power down",
 	},
@@ -93,11 +91,11 @@ static struct cpuidle_driver armada38x_idle_driver = {
 	.name			= "armada_38x_idle",
 	.states[0]		= ARM_CPUIDLE_WFI_STATE,
 	.states[1]		= {
-		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.enter			= mvebu_v7_enter_idle,
 		.exit_latency		= 10,
 		.power_usage		= 5,
 		.target_residency	= 100,
+		.flags			= CPUIDLE_FLAG_RCU_IDLE,
 		.name			= "Idle",
 		.desc			= "CPU and SCU power down",
 	},

Patchew 2.1-devel-b67e4c2

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