| Commit message (Collapse) | Author | Age |
|---|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
[ Upstream commit 55b55abc17f238c61921360e61dde90dd9a326d1 ]
Kmemleak reported the below leak. When cppc_cpufreq_init went into
failure path, the cpu mask is not freed. After fix, this report is
gone. And to avaoid potential NULL pointer reference, check the cpu
value first.
unreferenced object 0xffff800fd5ea4880 (size 128):
comm "swapper/0", pid 1, jiffies 4294939510 (age 668.680s)
hex dump (first 32 bytes):
00 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 .... ...........
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffff0000082c4ae4>] __kmalloc_node+0x278/0x634
[<ffff0000088f4a74>] alloc_cpumask_var_node+0x28/0x60
[<ffff0000088f4af0>] zalloc_cpumask_var+0x14/0x1c
[<ffff000008d20254>] cppc_cpufreq_init+0xd0/0x19c
[<ffff000008083828>] do_one_initcall+0xec/0x15c
[<ffff000008cd1018>] kernel_init_freeable+0x1f4/0x2a4
[<ffff0000089099b0>] kernel_init+0x18/0x10c
[<ffff000008084d50>] ret_from_fork+0x10/0x18
[<ffffffffffffffff>] 0xffffffffffffffff
Signed-off-by: Chunyu Hu <chuhu@redhat.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
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>
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
[ Upstream commit 8913315e9459b146e5888ab5138e10daa061b885 ]
When multiple CPUs are related in one cpufreq policy, the first online
CPU will be chosen by default to handle cpufreq operations. Let's take
cpu0 and cpu1 as an example.
When cpu0 is offline, policy->cpu will be shifted to cpu1. cpu1's perf
capabilities should be initialized. Otherwise, perf capabilities are 0s
and speed change can not take effect.
This patch copies perf capabilities of the first online CPU to other
shared CPUs when policy shared type is CPUFREQ_SHARED_TYPE_ANY.
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Shunyong Yang <shunyong.yang@hxt-semitech.com>
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>
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
The CPU policy struct indicates the co-ordination type
for all CPUs of a common freq domain. Initialize it
correctly using the CPU specific data gathered from
CPPC ACPI lib via acpi_get_psd_map().
The PSD object is optional, so the cpu->shared_type
can also be 0. So instead of assuming any value other
than SW_ANY(0xFD) is unsupported, explictly check
if shared_type is SW_ALL and then bail.
Signed-off-by: Ashwin Chaugule <ashwin.chaugule@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
|
| |
|
|
|
|
|
|
|
|
|
| |
The kfree() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
|
|
|
This driver utilizes the methods introduced in a previous
patch titled - "ACPI: Introduce CPU performance controls using CPPC"
and enables usage with existing CPUFreq governors.
Signed-off-by: Ashwin Chaugule <ashwin.chaugule@linaro.org>
Reviewed-by: Al Stone <al.stone@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
|
