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authorGeert Uytterhoeven <geert+renesas@glider.be>2018-01-02 16:26:31 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-04-12 12:32:15 +0200
commit74f5124bc3ff2f6c7fa4386901970766faed5dea (patch)
treeb71bb612453c4f2c2f075d6678d7ea964512741a
parent04568f4df2280cd7f42ce4a9da2789a3eacb779c (diff)
ACPI: EC: Fix debugfs_create_*() usage
[ Upstream commit 3522f867c13b63cf62acdf1b8ca5664c549a716a ] acpi_ec.gpe is "unsigned long", hence treating it as "u32" would expose the wrong half on big-endian 64-bit systems. Fix this by changing its type to "u32" and removing the cast, as all other code already uses u32 or sometimes even only u8. Fixes: 1195a098168fcacf (ACPI: Provide /sys/kernel/debug/ec/...) Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/acpi/ec.c2
-rw-r--r--drivers/acpi/ec_sys.c2
-rw-r--r--drivers/acpi/internal.h2
3 files changed, 3 insertions, 3 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index df842465634a..6adcda057b36 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -1516,7 +1516,7 @@ static int acpi_ec_setup(struct acpi_ec *ec, bool handle_events)
}
acpi_handle_info(ec->handle,
- "GPE=0x%lx, EC_CMD/EC_SC=0x%lx, EC_DATA=0x%lx\n",
+ "GPE=0x%x, EC_CMD/EC_SC=0x%lx, EC_DATA=0x%lx\n",
ec->gpe, ec->command_addr, ec->data_addr);
return ret;
}
diff --git a/drivers/acpi/ec_sys.c b/drivers/acpi/ec_sys.c
index 6c7dd7af789e..dd70d6c2bca0 100644
--- a/drivers/acpi/ec_sys.c
+++ b/drivers/acpi/ec_sys.c
@@ -128,7 +128,7 @@ static int acpi_ec_add_debugfs(struct acpi_ec *ec, unsigned int ec_device_count)
return -ENOMEM;
}
- if (!debugfs_create_x32("gpe", 0444, dev_dir, (u32 *)&first_ec->gpe))
+ if (!debugfs_create_x32("gpe", 0444, dev_dir, &first_ec->gpe))
goto error;
if (!debugfs_create_bool("use_global_lock", 0444, dev_dir,
&first_ec->global_lock))
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index ede83d38beed..2cd2ae152ab7 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -159,7 +159,7 @@ static inline void acpi_early_processor_osc(void) {}
-------------------------------------------------------------------------- */
struct acpi_ec {
acpi_handle handle;
- unsigned long gpe;
+ u32 gpe;
unsigned long command_addr;
unsigned long data_addr;
bool global_lock;