| Message ID | 1616831193-17920-7-git-send-email-tanxiaofei@huawei.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | acpi: fix some coding style issues | expand |
Hi Andy, On 2021/3/27 16:17, Andy Shevchenko wrote: > > > On Saturday, March 27, 2021, Xiaofei Tan <tanxiaofei@huawei.com > <mailto:tanxiaofei@huawei.com>> wrote: > > Fix some coding style issues reported by checkpatch.pl > <http://checkpatch.pl>, including > following types: > > WARNING: simple_strtol is obsolete, use kstrtol instead > WARNING: Missing a blank line after declarations > > > > First of all, two changes ==> two patches. > I thought it would be better to include more simple cleanup in one patch. > > > Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com > <mailto:tanxiaofei@huawei.com>> > --- > drivers/acpi/acpi_lpss.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c > index be73974..2df231e 100644 > --- a/drivers/acpi/acpi_lpss.c > +++ b/drivers/acpi/acpi_lpss.c > @@ -187,7 +187,7 @@ static void byt_i2c_setup(struct > lpss_private_data *pdata) > > /* Expected to always be true, but better safe then sorry */ > if (uid_str) > - uid = simple_strtol(uid_str, NULL, 10); > + uid = kstrtol(uid_str, NULL, 10); > > > How did you test this? Is there any guarantee that input is > null-terminated number? > > Where is the check of returned value from `kstrtol()`? > > Yes, you haven’t tested that at all. Don’t submit patches you are not > able to test and haven’t tested. > It's my fault. Sorry for that, i will fix it. > NAK. > > > /* Detect I2C bus shared with PUNIT and ignore its d3 status */ > status = acpi_evaluate_integer(handle, "_SEM", NULL, > &shared_host); > @@ -377,6 +377,7 @@ static const struct acpi_device_id > acpi_lpss_device_ids[] = { > static int is_memory(struct acpi_resource *res, void *not_used) > { > struct resource r; > + > return !acpi_dev_resource_memory(res, &r); > } > > @@ -1200,6 +1201,7 @@ static int acpi_lpss_poweroff_noirq(struct > device *dev) > if (pdata->dev_desc->resume_from_noirq) { > /* This is analogous to the > acpi_lpss_suspend_noirq() case. */ > int ret = acpi_lpss_do_poweroff_late(dev); > + > if (ret) > return ret; > } > -- > 2.8.1 > > > > -- > With Best Regards, > Andy Shevchenko > >
Hi Andy, On 2021/3/27 16:19, Andy Shevchenko wrote: > > > On Saturday, March 27, 2021, Xiaofei Tan <tanxiaofei@huawei.com > <mailto:tanxiaofei@huawei.com>> wrote: > > Fix some coding style issues reported by checkpatch.pl > <http://checkpatch.pl>, including > following types: > > WARNING: simple_strtol is obsolete, use kstrtol instead > > > And one more thing, the above message is bogus. Read what the comments > in the code says about use cases for simple_*() vs. kstrto*() ones. > OK. I would remove this modification from the patch. > Joe? > > > WARNING: Missing a blank line after declarations > > Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com > <mailto:tanxiaofei@huawei.com>> > --- > drivers/acpi/acpi_lpss.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c > index be73974..2df231e 100644 > --- a/drivers/acpi/acpi_lpss.c > +++ b/drivers/acpi/acpi_lpss.c > @@ -187,7 +187,7 @@ static void byt_i2c_setup(struct > lpss_private_data *pdata) > > /* Expected to always be true, but better safe then sorry */ > if (uid_str) > - uid = simple_strtol(uid_str, NULL, 10); > + uid = kstrtol(uid_str, NULL, 10); > > /* Detect I2C bus shared with PUNIT and ignore its d3 status */ > status = acpi_evaluate_integer(handle, "_SEM", NULL, > &shared_host); > @@ -377,6 +377,7 @@ static const struct acpi_device_id > acpi_lpss_device_ids[] = { > static int is_memory(struct acpi_resource *res, void *not_used) > { > struct resource r; > + > return !acpi_dev_resource_memory(res, &r); > } > > @@ -1200,6 +1201,7 @@ static int acpi_lpss_poweroff_noirq(struct > device *dev) > if (pdata->dev_desc->resume_from_noirq) { > /* This is analogous to the > acpi_lpss_suspend_noirq() case. */ > int ret = acpi_lpss_do_poweroff_late(dev); > + > if (ret) > return ret; > } > -- > 2.8.1 > > > > -- > With Best Regards, > Andy Shevchenko > >
On Sat, 2021-03-27 at 10:19 +0200, Andy Shevchenko wrote: > On Saturday, March 27, 2021, Xiaofei Tan <tanxiaofei@huawei.com> wrote: > > > Fix some coding style issues reported by checkpatch.pl, including > > following types: > > > > WARNING: simple_strtol is obsolete, use kstrtol instead > > > And one more thing, the above message is bogus. Read what the comments in > the code says about use cases for simple_*() vs. kstrto*() ones. > > Joe? This check and message is nearly 10 years old and was appropriate for when it was implemented. kernel.h currently has: * Use these functions if and only if you cannot use kstrto<foo>, because So the message could be changed to something like: WARNING: simple_strtol should be used only when kstrtol can not be used.
On Sat, Mar 27, 2021 at 3:39 PM Joe Perches <joe@perches.com> wrote: > > On Sat, 2021-03-27 at 10:19 +0200, Andy Shevchenko wrote: > > On Saturday, March 27, 2021, Xiaofei Tan <tanxiaofei@huawei.com> wrote: > > > > > Fix some coding style issues reported by checkpatch.pl, including > > > following types: > > > > > > WARNING: simple_strtol is obsolete, use kstrtol instead > > > > > > And one more thing, the above message is bogus. Read what the comments in > > the code says about use cases for simple_*() vs. kstrto*() ones. > > > > Joe? > > This check and message is nearly 10 years old and was appropriate for > when it was implemented. > > kernel.h currently has: > * Use these functions if and only if you cannot use kstrto<foo>, because > > So the message could be changed to something like: > > WARNING: simple_strtol should be used only when kstrtol can not be used. Fine with me, thanks!
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index be73974..2df231e 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -187,7 +187,7 @@ static void byt_i2c_setup(struct lpss_private_data *pdata) /* Expected to always be true, but better safe then sorry */ if (uid_str) - uid = simple_strtol(uid_str, NULL, 10); + uid = kstrtol(uid_str, NULL, 10); /* Detect I2C bus shared with PUNIT and ignore its d3 status */ status = acpi_evaluate_integer(handle, "_SEM", NULL, &shared_host); @@ -377,6 +377,7 @@ static const struct acpi_device_id acpi_lpss_device_ids[] = { static int is_memory(struct acpi_resource *res, void *not_used) { struct resource r; + return !acpi_dev_resource_memory(res, &r); } @@ -1200,6 +1201,7 @@ static int acpi_lpss_poweroff_noirq(struct device *dev) if (pdata->dev_desc->resume_from_noirq) { /* This is analogous to the acpi_lpss_suspend_noirq() case. */ int ret = acpi_lpss_do_poweroff_late(dev); + if (ret) return ret; }
Fix some coding style issues reported by checkpatch.pl, including following types: WARNING: simple_strtol is obsolete, use kstrtol instead WARNING: Missing a blank line after declarations Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com> --- drivers/acpi/acpi_lpss.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)