diff mbox series

iommu: amd: hide unused iommu_table_lock

Message ID 20180404105713.633983-1-arnd@arndb.de
State New
Headers show
Series iommu: amd: hide unused iommu_table_lock | expand

Commit Message

Arnd Bergmann April 4, 2018, 10:56 a.m. UTC
The newly introduced lock is only used when CONFIG_IRQ_REMAP is enabled:

drivers/iommu/amd_iommu.c:86:24: error: 'iommu_table_lock' defined but not used [-Werror=unused-variable]
 static DEFINE_SPINLOCK(iommu_table_lock);

This moves the definition next to the user, within the #ifdef protected
section of the file.

Fixes: ea6166f4b83e ("iommu/amd: Split irq_lookup_table out of the amd_iommu_devtable_lock")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

---
 drivers/iommu/amd_iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.9.0

Comments

Sebastian Andrzej Siewior April 13, 2018, 3:03 p.m. UTC | #1
On 2018-04-04 12:56:59 [+0200], Arnd Bergmann wrote:
> The newly introduced lock is only used when CONFIG_IRQ_REMAP is enabled:

> 

> drivers/iommu/amd_iommu.c:86:24: error: 'iommu_table_lock' defined but not used [-Werror=unused-variable]

>  static DEFINE_SPINLOCK(iommu_table_lock);

> 

> This moves the definition next to the user, within the #ifdef protected

> section of the file.

> 

> Fixes: ea6166f4b83e ("iommu/amd: Split irq_lookup_table out of the amd_iommu_devtable_lock")

> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>


Thank you Arnd.

Sebastian
Joerg Roedel May 3, 2018, 12:48 p.m. UTC | #2
On Wed, Apr 04, 2018 at 12:56:59PM +0200, Arnd Bergmann wrote:
> The newly introduced lock is only used when CONFIG_IRQ_REMAP is enabled:

> 

> drivers/iommu/amd_iommu.c:86:24: error: 'iommu_table_lock' defined but not used [-Werror=unused-variable]

>  static DEFINE_SPINLOCK(iommu_table_lock);

> 

> This moves the definition next to the user, within the #ifdef protected

> section of the file.

> 

> Fixes: ea6166f4b83e ("iommu/amd: Split irq_lookup_table out of the amd_iommu_devtable_lock")

> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

> ---

>  drivers/iommu/amd_iommu.c | 2 +-

>  1 file changed, 1 insertion(+), 1 deletion(-)


Applied, thanks.
diff mbox series

Patch

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 2a99f0f14795..8fb8c737fffe 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -83,7 +83,6 @@ 
 
 static DEFINE_SPINLOCK(amd_iommu_devtable_lock);
 static DEFINE_SPINLOCK(pd_bitmap_lock);
-static DEFINE_SPINLOCK(iommu_table_lock);
 
 /* List of all available dev_data structures */
 static LLIST_HEAD(dev_data_list);
@@ -3562,6 +3561,7 @@  EXPORT_SYMBOL(amd_iommu_device_info);
  *****************************************************************************/
 
 static struct irq_chip amd_ir_chip;
+static DEFINE_SPINLOCK(iommu_table_lock);
 
 static void set_dte_irq_entry(u16 devid, struct irq_remap_table *table)
 {