diff options
| author | Joel Fernandes (Google) <joel@joelfernandes.org> | 2019-07-17 00:12:28 +0200 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.ibm.com> | 2019-08-13 23:29:22 +0200 |
| commit | bee6f87166e9c6b8d81a7570995bd637e8da485a (patch) | |
| tree | 635a1dae3181269d58a849affcc336a7d2c07f2c /drivers | |
| parent | x86/pci: Pass lockdep condition to pcm_mmcfg_list iterator (diff) | |
| download | linux-bee6f87166e9c6b8d81a7570995bd637e8da485a.tar.xz linux-bee6f87166e9c6b8d81a7570995bd637e8da485a.zip | |
acpi: Use built-in RCU list checking for acpi_ioremaps list
This commit applies the consolidated list_for_each_entry_rcu() support
for lockdep conditions.
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/osl.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 9c0edf2fc0dd..2f9d0d20b836 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -14,6 +14,7 @@ #include <linux/slab.h> #include <linux/mm.h> #include <linux/highmem.h> +#include <linux/lockdep.h> #include <linux/pci.h> #include <linux/interrupt.h> #include <linux/kmod.h> @@ -80,6 +81,7 @@ struct acpi_ioremap { static LIST_HEAD(acpi_ioremaps); static DEFINE_MUTEX(acpi_ioremap_lock); +#define acpi_ioremap_lock_held() lock_is_held(&acpi_ioremap_lock.dep_map) static void __init acpi_request_region (struct acpi_generic_address *gas, unsigned int length, char *desc) @@ -206,7 +208,7 @@ acpi_map_lookup(acpi_physical_address phys, acpi_size size) { struct acpi_ioremap *map; - list_for_each_entry_rcu(map, &acpi_ioremaps, list) + list_for_each_entry_rcu(map, &acpi_ioremaps, list, acpi_ioremap_lock_held()) if (map->phys <= phys && phys + size <= map->phys + map->size) return map; @@ -249,7 +251,7 @@ acpi_map_lookup_virt(void __iomem *virt, acpi_size size) { struct acpi_ioremap *map; - list_for_each_entry_rcu(map, &acpi_ioremaps, list) + list_for_each_entry_rcu(map, &acpi_ioremaps, list, acpi_ioremap_lock_held()) if (map->virt <= virt && virt + size <= map->virt + map->size) return map; |