| Message ID | eff10695c92ff2d2e9733987d1b06adf559c07b0.1495522926.git.viresh.kumar@linaro.org (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | Eduardo Valentin |
| Headers | show |
Hello, On Tue, May 23, 2017 at 12:33:06PM +0530, Viresh Kumar wrote: > Checkpatch reports following: > > WARNING: Prefer kmalloc_array over kmalloc with multiply > + cpufreq_cdev->freq_table = kmalloc(sizeof(*cpufreq_cdev->freq_table) * i, > > Fix that. That is how the patch would apply. Enter to continue WARNING: line over 80 characters #159: FILE: drivers/thermal/cpu_cooling.c:783: + cpufreq_cdev->freq_table = kmalloc(sizeof(*cpufreq_cdev->freq_table) * i, WARNING: Prefer kmalloc_array over kmalloc with multiply #159: FILE: drivers/thermal/cpu_cooling.c:783: + cpufreq_cdev->freq_table = kmalloc(sizeof(*cpufreq_cdev->freq_table) * i, + GFP_KERNEL); WARNING: line over 80 characters #190: FILE: include/linux/cpufreq.h:859: +static inline int cpufreq_table_count_valid_entries(const struct cpufreq_policy *policy) > > Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> > --- > drivers/thermal/cpu_cooling.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/drivers/thermal/cpu_cooling.c b/drivers/thermal/cpu_cooling.c > index 1305020790b2..908a8014cf76 100644 > --- a/drivers/thermal/cpu_cooling.c > +++ b/drivers/thermal/cpu_cooling.c > @@ -724,8 +724,9 @@ __cpufreq_cooling_register(struct device_node *np, > /* max_level is an index, not a counter */ > cpufreq_cdev->max_level = i - 1; > > - cpufreq_cdev->freq_table = kmalloc(sizeof(*cpufreq_cdev->freq_table) * i, > - GFP_KERNEL); > + cpufreq_cdev->freq_table = kmalloc_array(i, > + sizeof(*cpufreq_cdev->freq_table), > + GFP_KERNEL); > if (!cpufreq_cdev->freq_table) { > cdev = ERR_PTR(-ENOMEM); > goto free_idle_time; > -- > 2.13.0.70.g6367777092d9 >
On 23-05-17, 19:27, Eduardo Valentin wrote: > Hello, > > On Tue, May 23, 2017 at 12:33:06PM +0530, Viresh Kumar wrote: > > Checkpatch reports following: > > > > WARNING: Prefer kmalloc_array over kmalloc with multiply > > + cpufreq_cdev->freq_table = kmalloc(sizeof(*cpufreq_cdev->freq_table) * i, > > > > Fix that. > > That is how the patch would apply. Enter to continue > > WARNING: line over 80 characters > #159: FILE: drivers/thermal/cpu_cooling.c:783: > + cpufreq_cdev->freq_table = kmalloc(sizeof(*cpufreq_cdev->freq_table) * i, > > WARNING: Prefer kmalloc_array over kmalloc with multiply > #159: FILE: drivers/thermal/cpu_cooling.c:783: > + cpufreq_cdev->freq_table = kmalloc(sizeof(*cpufreq_cdev->freq_table) * i, > + GFP_KERNEL); > > WARNING: line over 80 characters > #190: FILE: include/linux/cpufreq.h:859: > +static inline int cpufreq_table_count_valid_entries(const struct cpufreq_policy *policy) I am not sure what you meant here. Above doesn't looks something that this patch can generate. This was fixing the problem that you reported above. > > > > Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> > > --- > > drivers/thermal/cpu_cooling.c | 5 +++-- > > 1 file changed, 3 insertions(+), 2 deletions(-) > > > > diff --git a/drivers/thermal/cpu_cooling.c b/drivers/thermal/cpu_cooling.c > > index 1305020790b2..908a8014cf76 100644 > > --- a/drivers/thermal/cpu_cooling.c > > +++ b/drivers/thermal/cpu_cooling.c > > @@ -724,8 +724,9 @@ __cpufreq_cooling_register(struct device_node *np, > > /* max_level is an index, not a counter */ > > cpufreq_cdev->max_level = i - 1; > > > > - cpufreq_cdev->freq_table = kmalloc(sizeof(*cpufreq_cdev->freq_table) * i, > > - GFP_KERNEL); > > + cpufreq_cdev->freq_table = kmalloc_array(i, > > + sizeof(*cpufreq_cdev->freq_table), > > + GFP_KERNEL); > > if (!cpufreq_cdev->freq_table) {
diff --git a/drivers/thermal/cpu_cooling.c b/drivers/thermal/cpu_cooling.c index 1305020790b2..908a8014cf76 100644 --- a/drivers/thermal/cpu_cooling.c +++ b/drivers/thermal/cpu_cooling.c @@ -724,8 +724,9 @@ __cpufreq_cooling_register(struct device_node *np, /* max_level is an index, not a counter */ cpufreq_cdev->max_level = i - 1; - cpufreq_cdev->freq_table = kmalloc(sizeof(*cpufreq_cdev->freq_table) * i, - GFP_KERNEL); + cpufreq_cdev->freq_table = kmalloc_array(i, + sizeof(*cpufreq_cdev->freq_table), + GFP_KERNEL); if (!cpufreq_cdev->freq_table) { cdev = ERR_PTR(-ENOMEM); goto free_idle_time;
Checkpatch reports following: WARNING: Prefer kmalloc_array over kmalloc with multiply + cpufreq_cdev->freq_table = kmalloc(sizeof(*cpufreq_cdev->freq_table) * i, Fix that. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> --- drivers/thermal/cpu_cooling.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)