Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Viresh Kumar 92c14bd947 cpufreq: move policy kobj to policy->cpu at resume ... This is only relevant to implementations with multiple clusters, where clusters have separate clock lines but all CPUs within a cluster share it. Consider a dual cluster platform with 2 cores per cluster. During suspend we start hot unplugging CPUs in order 1 to 3. When CPU2 is removed, policy->kobj would be moved to CPU3 and when CPU3 goes down we wouldn't free policy or its kobj as we want to retain permissions/values/etc. Now on resume, we will get CPU2 before CPU3 and will call __cpufreq_add_dev(). We will recover the old policy and update policy->cpu from 3 to 2 from update_policy_cpu(). But the kobj is still tied to CPU3 and isn't moved to CPU2. We wouldn't create a link for CPU2, but would try that for CPU3 while bringing it online. Which will report errors as CPU3 already has kobj assigned to it. This bug got introduced with commit 42f921a, which overlooked this scenario. To fix this, lets move kobj to the new policy->cpu while bringing first CPU of a cluster back. Also do a WARN_ON() if kobject_move failed, as we would reach here only for the first CPU of a non-boot cluster. And we can't recover from this situation, if kobject_move() fails. Fixes: 42f921a6f1 (cpufreq: remove sysfs files for CPUs which failed to come back after resume) Cc: 3.13+ <stable@vger.kernel.org> # 3.13+ Reported-and-tested-by: Bu Yitian <ybu@qti.qualcomm.com> Reported-by: Saravana Kannan <skannan@codeaurora.org> Reviewed-by: Srivatsa S. Bhat <srivatsa@mit.edu> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>		2014-07-17 14:23:22 +02:00
..
acpi-cpufreq.c	cpufreq: Use cpufreq_for_each_* macros for frequency table iteration	2014-04-30 00:06:21 +02:00
amd_freq_sensitivity.c
arm_big_little.c	cpufreq: Use cpufreq_for_each_* macros for frequency table iteration	2014-04-30 00:06:21 +02:00
arm_big_little.h
arm_big_little_dt.c
at32ap-cpufreq.c	cpufreq: at32ap: don't declare local variable as static	2014-04-07 14:31:33 +02:00
blackfin-cpufreq.c	cpufreq: Remove cpufreq_generic_exit()	2014-03-12 01:06:00 +01:00
cpufreq-cpu0.c	cpufreq: cpu0: OPPs can be populated at runtime	2014-07-16 15:12:52 +02:00
cpufreq-nforce2.c	cpufreq: nforce2: remove DEFINE_PCI_DEVICE_TABLE macro	2014-05-17 01:16:15 +02:00
cpufreq.c	cpufreq: move policy kobj to policy->cpu at resume	2014-07-17 14:23:22 +02:00
cpufreq_conservative.c
cpufreq_governor.c	cpufreq: governor: remove copy_prev_load from 'struct cpu_dbs_common_info'	2014-06-09 12:58:21 +02:00
cpufreq_governor.h	cpufreq: governor: remove copy_prev_load from 'struct cpu_dbs_common_info'	2014-06-09 12:58:21 +02:00
cpufreq_ondemand.c
cpufreq_opp.c	PM / OPP: Move cpufreq specific OPP functions out of generic OPP library	2014-05-07 00:39:03 +02:00
cpufreq_performance.c
cpufreq_powersave.c
cpufreq_stats.c	cpufreq: Use cpufreq_for_each_* macros for frequency table iteration	2014-04-30 00:06:21 +02:00
cpufreq_userspace.c
cris-artpec3-cpufreq.c	cpufreq: create another field .flags in cpufreq_frequency_table	2014-04-07 14:43:50 +02:00
cris-etraxfs-cpufreq.c	cpufreq: create another field .flags in cpufreq_frequency_table	2014-04-07 14:43:50 +02:00
davinci-cpufreq.c	cpufreq: Remove cpufreq_generic_exit()	2014-03-12 01:06:00 +01:00
dbx500-cpufreq.c	cpufreq: Use cpufreq_for_each_* macros for frequency table iteration	2014-04-30 00:06:21 +02:00
e_powersaver.c
elanfreq.c	cpufreq: Use cpufreq_for_each_* macros for frequency table iteration	2014-04-30 00:06:21 +02:00
exynos-cpufreq.c	ACPI and power management updates for 3.16-rc1	2014-06-04 08:57:16 -07:00
exynos-cpufreq.h	ACPI and power management updates for 3.16-rc1	2014-06-04 08:57:16 -07:00
exynos4x12-cpufreq.c	cpufreq: exynos: Fix driver compilation with ARCH_MULTIPLATFORM	2014-05-31 03:00:25 +09:00
exynos4210-cpufreq.c	cpufreq: exynos: Fix driver compilation with ARCH_MULTIPLATFORM	2014-05-31 03:00:25 +09:00
exynos5250-cpufreq.c	cpufreq: exynos: Fix driver compilation with ARCH_MULTIPLATFORM	2014-05-31 03:00:25 +09:00
exynos5440-cpufreq.c	cpufreq: Use cpufreq_for_each_* macros for frequency table iteration	2014-04-30 00:06:21 +02:00
freq_table.c	cpufreq: Break out early when frequency equals target_freq	2014-05-20 14:02:09 +02:00
gx-suspmod.c	cpufreq: Convert existing drivers to use cpufreq_freq_transition_{begin|end}	2014-03-26 16:41:41 +01:00
highbank-cpufreq.c
ia64-acpi-cpufreq.c	cpufreq: use kzalloc() to allocate memory for cpufreq_frequency_table	2014-04-07 14:43:49 +02:00
imx6q-cpufreq.c	cpufreq: imx6q: Remove unused include	2014-05-17 01:34:42 +02:00
integrator-cpufreq.c	cpufreq: Convert existing drivers to use cpufreq_freq_transition_{begin|end}	2014-03-26 16:41:41 +01:00
intel_pstate.c	intel_pstate: Set CPU number before accessing MSRs	2014-07-07 01:24:24 +02:00
Kconfig	cpufreq: cpufreq-cpu0: fix CPU_THERMAL dependency	2014-06-16 22:33:38 +02:00
Kconfig.arm	cpufreq: kirkwood: Reinstate cpufreq driver for ARCH_KIRKWOOD	2014-07-16 15:12:03 +02:00
Kconfig.powerpc	cpufreq: powernv: cpufreq driver for powernv platform	2014-04-07 14:35:27 +02:00
Kconfig.x86	cpufreq: Kconfig: Fix spelling errors	2014-05-01 01:18:19 +02:00
kirkwood-cpufreq.c	cpufreq: create another field .flags in cpufreq_frequency_table	2014-04-07 14:43:50 +02:00
longhaul.c	Merge branch 'cpufreq-macros' into pm-cpufreq	2014-05-01 00:50:47 +02:00
longhaul.h
longrun.c
loongson2_cpufreq.c	MIPS/loongson2_cpufreq: Fix CPU clock rate setting	2014-05-13 00:29:41 +02:00
Makefile	cpufreq: Makefile: fix compilation for davinci platform	2014-07-09 02:54:15 +02:00
maple-cpufreq.c	cpufreq: create another field .flags in cpufreq_frequency_table	2014-04-07 14:43:50 +02:00
omap-cpufreq.c
p4-clockmod.c	cpufreq: create another field .flags in cpufreq_frequency_table	2014-04-07 14:43:50 +02:00
pasemi-cpufreq.c	cpufreq: Use cpufreq_for_each_* macros for frequency table iteration	2014-04-30 00:06:21 +02:00
pcc-cpufreq.c	cpufreq: Convert existing drivers to use cpufreq_freq_transition_{begin|end}	2014-03-26 16:41:41 +01:00
pmac32-cpufreq.c	cpufreq: create another field .flags in cpufreq_frequency_table	2014-04-07 14:43:50 +02:00
pmac64-cpufreq.c	cpufreq: create another field .flags in cpufreq_frequency_table	2014-04-07 14:43:50 +02:00
powernow-k6.c	Merge branch 'cpufreq-macros' into pm-cpufreq	2014-05-01 00:50:47 +02:00
powernow-k7.c	cpufreq: powernow-k7: Fix double invocation of cpufreq_freq_transition_begin/end	2014-04-29 01:22:54 +02:00
powernow-k7.h
powernow-k8.c	cpufreq: powernow-k8: Suppress checkpatch warnings	2014-05-17 01:27:01 +02:00
powernow-k8.h	cpufreq: powernow-k8: Suppress checkpatch warnings	2014-05-17 01:27:01 +02:00
powernv-cpufreq.c	cpufreq: powernv: make local function static	2014-05-17 01:25:46 +02:00
ppc-corenet-cpufreq.c	cpufreq: ppc-corenet-cpu-freq: do_div use quotient	2014-06-06 22:50:43 +02:00
ppc_cbe_cpufreq.c	cpufreq: Use cpufreq_for_each_* macros for frequency table iteration	2014-04-30 00:06:21 +02:00
ppc_cbe_cpufreq.h
ppc_cbe_cpufreq_pervasive.c
ppc_cbe_cpufreq_pmi.c
pxa2xx-cpufreq.c	cpufreq: Remove cpufreq_generic_exit()	2014-03-12 01:06:00 +01:00
pxa3xx-cpufreq.c	cpufreq: Remove cpufreq_generic_exit()	2014-03-12 01:06:00 +01:00
s3c24xx-cpufreq-debugfs.c
s3c24xx-cpufreq.c	ARM: S3C24XX: cpufreq-utils: don't write raw values to MPLLCON when using ccf	2014-05-09 05:48:44 +09:00
s3c64xx-cpufreq.c	cpufreq: Use cpufreq_for_each_* macros for frequency table iteration	2014-04-30 00:06:21 +02:00
s3c2410-cpufreq.c
s3c2412-cpufreq.c
s3c2416-cpufreq.c	cpufreq: Use cpufreq_for_each_* macros for frequency table iteration	2014-04-30 00:06:21 +02:00
s3c2440-cpufreq.c
s5pv210-cpufreq.c	cpufreq: s5pv210: drop check for CONFIG_PM_VERBOSE	2014-05-27 01:06:44 +02:00
sa1100-cpufreq.c
sa1110-cpufreq.c	cpufreq: sa1110: set memory type for h3600	2014-07-16 14:30:17 +02:00
sc520_freq.c	cpufreq: create another field .flags in cpufreq_frequency_table	2014-04-07 14:43:50 +02:00
sh-cpufreq.c	cpufreq: Convert existing drivers to use cpufreq_freq_transition_{begin|end}	2014-03-26 16:41:41 +01:00
sparc-us2e-cpufreq.c
sparc-us3-cpufreq.c
spear-cpufreq.c	cpufreq: use kzalloc() to allocate memory for cpufreq_frequency_table	2014-04-07 14:43:49 +02:00
speedstep-centrino.c	cpufreq: Make linux-pm@vger.kernel.org official mailing list	2014-05-01 01:15:32 +02:00
speedstep-ich.c	cpufreq: create another field .flags in cpufreq_frequency_table	2014-04-07 14:43:50 +02:00
speedstep-lib.c
speedstep-lib.h
speedstep-smi.c	cpufreq: create another field .flags in cpufreq_frequency_table	2014-04-07 14:43:50 +02:00
tegra-cpufreq.c	cpufreq: tegra: update comment for clarity	2014-06-10 22:50:50 +02:00
unicore2-cpufreq.c	cpufreq: unicore32: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO	2014-04-21 23:42:27 +02:00
vexpress-spc-cpufreq.c