iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ACPI: EC: Fix debugfs_create_*() usage

Browse Source 
[ 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>
This commit is contained in:
Geert Uytterhoeven 2018-01-02 16:26:31 +01:00 committed by Greg Kroah-Hartman
parent c979024a1b
commit b7fe48228d
3 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/acpi/ec.c
View File

@ -1518,7 +1518,7 @@ 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;
}

2
drivers/acpi/ec_sys.c
View File

@ -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))

2
drivers/acpi/internal.h
View File

@ -158,7 +158,7 @@ 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;