Re: [PATCH] media: atomisp: ov2722: replace hardcoded function name
On Wed, Jan 06, 2021 at 01:17:47PM -0800, Joe Perches wrote: > On Wed, 2021-01-06 at 22:36 +0300, Dan Carpenter wrote: > > On Wed, Jan 06, 2021 at 10:25:26AM -0800, Joe Perches wrote: > > > On Wed, 2021-01-06 at 18:52 +0100, Greg Kroah-Hartman wrote: > > > > On Wed, Jan 06, 2021 at 07:43:42PM +0200, Filip Kolev wrote: > > > > > On 06-Jan-21 09:51, Greg Kroah-Hartman wrote: > > > > > > On Tue, Jan 05, 2021 at 10:29:18PM +0200, Filip Kolev wrote: > > > > > > > There is a debug message using hardcoded function name instead of > > > > > > > the > > > > > > > __func__ macro. Replace it. > > > > > > > > > > > > > > Report from checkpatch.pl on the file: > > > > > > > > > > > > > > WARNING: Prefer using '"%s...", __func__' to using > > > > > > > 'ov2722_remove', this function's name, in a string > > > > > > > + dev_dbg(&client->dev, "ov2722_remove...\n"); > [] > > > There are quite a lot of these relatively useless function tracing like > > > uses in the kernel: > > > > > > $ git grep -P '"%s[\.\!]*\\n"\s*,\s*__func__\s*\)' | wc -l > > > 1065 > > > > These are printing other stuff besides just the function name. > > No, these are printing _only_ the function name. > Oh... Duh... I was looking at the complete wrong output. My bad. Yeah. I like this warning. regards, dan carpenter ___ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
Re: [PATCH] media: atomisp: ov2722: replace hardcoded function name
On Wed, 2021-01-06 at 22:36 +0300, Dan Carpenter wrote: > On Wed, Jan 06, 2021 at 10:25:26AM -0800, Joe Perches wrote: > > On Wed, 2021-01-06 at 18:52 +0100, Greg Kroah-Hartman wrote: > > > On Wed, Jan 06, 2021 at 07:43:42PM +0200, Filip Kolev wrote: > > > > On 06-Jan-21 09:51, Greg Kroah-Hartman wrote: > > > > > On Tue, Jan 05, 2021 at 10:29:18PM +0200, Filip Kolev wrote: > > > > > > There is a debug message using hardcoded function name instead of > > > > > > the > > > > > > __func__ macro. Replace it. > > > > > > > > > > > > Report from checkpatch.pl on the file: > > > > > > > > > > > > WARNING: Prefer using '"%s...", __func__' to using 'ov2722_remove', > > > > > > this function's name, in a string > > > > > > + dev_dbg(&client->dev, "ov2722_remove...\n"); [] > > There are quite a lot of these relatively useless function tracing like > > uses in the kernel: > > > > $ git grep -P '"%s[\.\!]*\\n"\s*,\s*__func__\s*\)' | wc -l > > 1065 > > These are printing other stuff besides just the function name. No, these are printing _only_ the function name. > Maybe grep for '", __func__\)'? No, that wouldn't work as there are many many uses like: printk('%s: some string\n", __func__); ___ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
Re: [PATCH] media: atomisp: ov2722: replace hardcoded function name
On Wed, Jan 06, 2021 at 10:25:26AM -0800, Joe Perches wrote: > On Wed, 2021-01-06 at 18:52 +0100, Greg Kroah-Hartman wrote: > > On Wed, Jan 06, 2021 at 07:43:42PM +0200, Filip Kolev wrote: > > > On 06-Jan-21 09:51, Greg Kroah-Hartman wrote: > > > > On Tue, Jan 05, 2021 at 10:29:18PM +0200, Filip Kolev wrote: > > > > > There is a debug message using hardcoded function name instead of the > > > > > __func__ macro. Replace it. > > > > > > > > > > Report from checkpatch.pl on the file: > > > > > > > > > > WARNING: Prefer using '"%s...", __func__' to using 'ov2722_remove', > > > > > this function's name, in a string > > > > > + dev_dbg(&client->dev, "ov2722_remove...\n"); > [] > > > > > diff --git a/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c > > > > > b/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c > [] > > > > > @@ -1175,7 +1175,7 @@ static int ov2722_remove(struct i2c_client > > > > > *client) > > > > > struct v4l2_subdev *sd = i2c_get_clientdata(client); > > > > > struct ov2722_device *dev = to_ov2722_sensor(sd); > > > > > - dev_dbg(&client->dev, "ov2722_remove...\n"); > > > > > + dev_dbg(&client->dev, "%s...\n", __func__); > > > > > > > > dev_dbg() provides the function name already, and this is just a "trace" > > > > call, and ftrace should be used instead, so the whole line should be > > > > removed entirely. > > > > > > Thank you for the review! > > > > > > How do I go about this? Do I amend the patch and re-send as v2 or create a > > > new patch entirely? > > > > New patch entirely please. > > There are quite a lot of these relatively useless function tracing like > uses in the kernel: > > $ git grep -P '"%s[\.\!]*\\n"\s*,\s*__func__\s*\)' | wc -l > 1065 These are printing other stuff besides just the function name. Maybe grep for '", __func__\)'? regards, dan carpenter ___ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
Re: [PATCH] media: atomisp: ov2722: replace hardcoded function name
On Wed, 2021-01-06 at 18:52 +0100, Greg Kroah-Hartman wrote: > On Wed, Jan 06, 2021 at 07:43:42PM +0200, Filip Kolev wrote: > > On 06-Jan-21 09:51, Greg Kroah-Hartman wrote: > > > On Tue, Jan 05, 2021 at 10:29:18PM +0200, Filip Kolev wrote: > > > > There is a debug message using hardcoded function name instead of the > > > > __func__ macro. Replace it. > > > > > > > > Report from checkpatch.pl on the file: > > > > > > > > WARNING: Prefer using '"%s...", __func__' to using 'ov2722_remove', > > > > this function's name, in a string > > > > + dev_dbg(&client->dev, "ov2722_remove...\n"); [] > > > > diff --git a/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c > > > > b/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c [] > > > > @@ -1175,7 +1175,7 @@ static int ov2722_remove(struct i2c_client > > > > *client) > > > > struct v4l2_subdev *sd = i2c_get_clientdata(client); > > > > struct ov2722_device *dev = to_ov2722_sensor(sd); > > > > - dev_dbg(&client->dev, "ov2722_remove...\n"); > > > > + dev_dbg(&client->dev, "%s...\n", __func__); > > > > > > dev_dbg() provides the function name already, and this is just a "trace" > > > call, and ftrace should be used instead, so the whole line should be > > > removed entirely. > > > > Thank you for the review! > > > > How do I go about this? Do I amend the patch and re-send as v2 or create a > > new patch entirely? > > New patch entirely please. There are quite a lot of these relatively useless function tracing like uses in the kernel: $ git grep -P '"%s[\.\!]*\\n"\s*,\s*__func__\s*\)' | wc -l 1065 Perhaps yet another checkpatch warning would be useful: --- scripts/checkpatch.pl | 8 1 file changed, 8 insertions(+) diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index e6857bdfcb2d..46b8ec8fe9e1 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -5981,6 +5981,14 @@ sub process { "Prefer using '\"%s...\", __func__' to using '$context_function', this function's name, in a string\n" . $herecurr); } +# check for unnecessary function tracing like uses + if ($rawline =~ /^\+\s*$logFunctions\s*\([^"]*"%s[\.\!]*\\n"\s*,\s*__func__\s*\)\s*;\s*$/) { + if (WARN("TRACING_LOGGING", +"Unnecessary ftrace-like logging - prefer using ftrace\n" . $herecurr) && + $fix) { +fix_delete_line($fixlinenr, $rawline); + } + } # check for spaces before a quoted newline if ($rawline =~ /^.*\".*\s\\n/) { if (WARN("QUOTED_WHITESPACE_BEFORE_NEWLINE", ___ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
Re: [PATCH] media: atomisp: ov2722: replace hardcoded function name
On Wed, Jan 06, 2021 at 07:43:42PM +0200, Filip Kolev wrote: > > > On 06-Jan-21 09:51, Greg Kroah-Hartman wrote: > > On Tue, Jan 05, 2021 at 10:29:18PM +0200, Filip Kolev wrote: > > > There is a debug message using hardcoded function name instead of the > > > __func__ macro. Replace it. > > > > > > Report from checkpatch.pl on the file: > > > > > > WARNING: Prefer using '"%s...", __func__' to using 'ov2722_remove', this > > > function's name, in a string > > > + dev_dbg(&client->dev, "ov2722_remove...\n"); > > > > > > Signed-off-by: Filip Kolev > > > --- > > > drivers/staging/media/atomisp/i2c/atomisp-ov2722.c | 2 +- > > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > > > diff --git a/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c > > > b/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c > > > index eecefcd734d0e..21d6bc62d452a 100644 > > > --- a/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c > > > +++ b/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c > > > @@ -1175,7 +1175,7 @@ static int ov2722_remove(struct i2c_client *client) > > > struct v4l2_subdev *sd = i2c_get_clientdata(client); > > > struct ov2722_device *dev = to_ov2722_sensor(sd); > > > - dev_dbg(&client->dev, "ov2722_remove...\n"); > > > + dev_dbg(&client->dev, "%s...\n", __func__); > > > > dev_dbg() provides the function name already, and this is just a "trace" > > call, and ftrace should be used instead, so the whole line should be > > removed entirely. > > Thank you for the review! > > How do I go about this? Do I amend the patch and re-send as v2 or create a > new patch entirely? New patch entirely please. thanks, greg k-h ___ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
Re: [PATCH] media: atomisp: ov2722: replace hardcoded function name
On 06-Jan-21 09:51, Greg Kroah-Hartman wrote: On Tue, Jan 05, 2021 at 10:29:18PM +0200, Filip Kolev wrote: There is a debug message using hardcoded function name instead of the __func__ macro. Replace it. Report from checkpatch.pl on the file: WARNING: Prefer using '"%s...", __func__' to using 'ov2722_remove', this function's name, in a string + dev_dbg(&client->dev, "ov2722_remove...\n"); Signed-off-by: Filip Kolev --- drivers/staging/media/atomisp/i2c/atomisp-ov2722.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c b/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c index eecefcd734d0e..21d6bc62d452a 100644 --- a/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c +++ b/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c @@ -1175,7 +1175,7 @@ static int ov2722_remove(struct i2c_client *client) struct v4l2_subdev *sd = i2c_get_clientdata(client); struct ov2722_device *dev = to_ov2722_sensor(sd); - dev_dbg(&client->dev, "ov2722_remove...\n"); + dev_dbg(&client->dev, "%s...\n", __func__); dev_dbg() provides the function name already, and this is just a "trace" call, and ftrace should be used instead, so the whole line should be removed entirely. Thank you for the review! How do I go about this? Do I amend the patch and re-send as v2 or create a new patch entirely? Newbie here, doing this as part of the Eudyptula challenge, so I very much appreciate everyone's patience. thanks, greg k-h ___ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
Re: [PATCH] media: atomisp: ov2722: replace hardcoded function name
On Tue, Jan 05, 2021 at 10:29:18PM +0200, Filip Kolev wrote: > There is a debug message using hardcoded function name instead of the > __func__ macro. Replace it. > > Report from checkpatch.pl on the file: > > WARNING: Prefer using '"%s...", __func__' to using 'ov2722_remove', this > function's name, in a string > + dev_dbg(&client->dev, "ov2722_remove...\n"); > > Signed-off-by: Filip Kolev > --- > drivers/staging/media/atomisp/i2c/atomisp-ov2722.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c > b/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c > index eecefcd734d0e..21d6bc62d452a 100644 > --- a/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c > +++ b/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c > @@ -1175,7 +1175,7 @@ static int ov2722_remove(struct i2c_client *client) > struct v4l2_subdev *sd = i2c_get_clientdata(client); > struct ov2722_device *dev = to_ov2722_sensor(sd); > > - dev_dbg(&client->dev, "ov2722_remove...\n"); > + dev_dbg(&client->dev, "%s...\n", __func__); dev_dbg() provides the function name already, and this is just a "trace" call, and ftrace should be used instead, so the whole line should be removed entirely. thanks, greg k-h ___ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
[PATCH] media: atomisp: ov2722: replace hardcoded function name
There is a debug message using hardcoded function name instead of the __func__ macro. Replace it. Report from checkpatch.pl on the file: WARNING: Prefer using '"%s...", __func__' to using 'ov2722_remove', this function's name, in a string + dev_dbg(&client->dev, "ov2722_remove...\n"); Signed-off-by: Filip Kolev --- drivers/staging/media/atomisp/i2c/atomisp-ov2722.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c b/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c index eecefcd734d0e..21d6bc62d452a 100644 --- a/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c +++ b/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c @@ -1175,7 +1175,7 @@ static int ov2722_remove(struct i2c_client *client) struct v4l2_subdev *sd = i2c_get_clientdata(client); struct ov2722_device *dev = to_ov2722_sensor(sd); - dev_dbg(&client->dev, "ov2722_remove...\n"); + dev_dbg(&client->dev, "%s...\n", __func__); dev->platform_data->csi_cfg(sd, 0); v4l2_ctrl_handler_free(&dev->ctrl_handler); -- 2.30.0 ___ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel