diff mbox series

[v5,1/3] USB: serial: option: remove old LARA-R6 PID

Message ID 20221109161713.31723-1-davide.tronchin.94@gmail.com (mailing list archive)
State Superseded
Headers show
Series [v5,1/3] USB: serial: option: remove old LARA-R6 PID | expand

Commit Message

Davide Tronchin Nov. 9, 2022, 4:17 p.m. UTC
The LARA-R6 module old PID (defined as: UBLOX_PRODUCT_R6XX
0x90fa) has been removed since is no longer used by the
current u-blox LARA-R6 product. However, PID 0x90fa has been
kept to maintain the support to other products that use the
same VID/PID.

Signed-off-by: Davide Tronchin <davide.tronchin.94@gmail.com>
---

V4 -> V5: kept PID 0x90fa to maintain the support for other products
which use VID:PID 0x05c6:0x90fa. Remove interface 4 from blacklist
for LARA-L6 default mode since it is not needed.

V3 -> V4: as requested, the patch has been split to 3 sub-patches.
Fix comment format.

V2 -> V3: added this section to tracking changes with previous versions.
Added some explanations about the RSVD(4) in the description session.
Added reservation to port 4 of VID:PID 0x05C6:0x908B to meet other
companies QMI net interface implementation.

V1 -> V2: define UBLOX_PRODUCT_LARA_R6 0x908b has been deleted together
with the previosly provided definition of USB_DEVICE since the PID
is used by another vendor.
The LARA-L6 patch part is the same of the previosly provided one.

 drivers/usb/serial/option.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Comments

Johan Hovold Nov. 15, 2022, 10:12 a.m. UTC | #1
On Wed, Nov 09, 2022 at 05:17:11PM +0100, Davide Tronchin wrote:
> The LARA-R6 module old PID (defined as: UBLOX_PRODUCT_R6XX
> 0x90fa) has been removed since is no longer used by the
> current u-blox LARA-R6 product. However, PID 0x90fa has been
> kept to maintain the support to other products that use the
> same VID/PID.

First, please wrap your commit messages at 72 column or so (not 60).

We've asked you repeatedly whether you for u-blox or not, but you keep
ignoring this question. Knowing this would allow us to better evaluate
the reasoning and motivation behind this this change.

The above commit message still does not explain why you want to remove
it and whether it would be safe to do so. Why was added in the first
place? What u-blox products used the old PID?

By just removing the define this is less of an issue, but you should
not make the life of reviewers harder by ignoring request to properly
motivate your changes and explain why they are safe to apply.

> Signed-off-by: Davide Tronchin <davide.tronchin.94@gmail.com>
> ---
> 
> V4 -> V5: kept PID 0x90fa to maintain the support for other products
> which use VID:PID 0x05c6:0x90fa. Remove interface 4 from blacklist
> for LARA-L6 default mode since it is not needed.

You can either put a shared changelog for the whole series in a cover
letter, or you describe changes to each individual patch. But mixing the
two styles as you do in this entry is just confusing.

> V3 -> V4: as requested, the patch has been split to 3 sub-patches.
> Fix comment format.
> 
> V2 -> V3: added this section to tracking changes with previous versions.
> Added some explanations about the RSVD(4) in the description session.
> Added reservation to port 4 of VID:PID 0x05C6:0x908B to meet other
> companies QMI net interface implementation.
> 
> V1 -> V2: define UBLOX_PRODUCT_LARA_R6 0x908b has been deleted together
> with the previosly provided definition of USB_DEVICE since the PID
> is used by another vendor.
> The LARA-L6 patch part is the same of the previosly provided one.

Johan
Davide Tronchin Nov. 15, 2022, 4:46 p.m. UTC | #2
My apologies, this is my first attempt to submit a patch to the kernel
community.

> We've asked you repeatedly whether you for u-blox or not, but you keep
> ignoring this question. Knowing this would allow us to better evaluate
> the reasoning and motivation behind this this change.

Yes, i am a u-blox employee and i've been asked to integrate LARA-L6 in
the linux kernel and update the current code for LARA-R6 00B (updating
the PID from 0x90fa to 0x908b).

> The above commit message still does not explain why you want to remove
> it and whether it would be safe to do so. Why was added in the first
> place? What u-blox products used the old PID?

The first prototype of LARA-R6 00B had 0x90fa PID but, just before the
product finalization, it has been decided to adopt a new USB composition
and consequently a change of PID was necessary.
The 0x90fa PID has been used only for some internal prototypes, hence
no u-blox products with that PID have been shipped to customers.
As pointed out in the discussion, the 0x90fa PID is used by other module
vendors which sell Qualcomm based modems, hence i proposed to remove the
association between u-blox (thedefine UBLOX_PRODUCT_R6XX) and 0x90fa,
moving it directly in the option_ids array.

> By just removing the define this is less of an issue, but you should
> not make the life of reviewers harder by ignoring request to properly
> motivate your changes and explain why they are safe to apply.

My apologies again, thanks for the patience.

> You can either put a shared changelog for the whole series in a cover
> letter, or you describe changes to each individual patch. But mixing the
> two styles as you do in this entry is just confusing.

Thanks for the suggestions. In order to simplify the submission process,
i propose to split the submission for the LARA-L6 patches and the update
for LARA-R6 00B.
Do you think could it be feasible?

Davide
Johan Hovold Nov. 16, 2022, 8:05 a.m. UTC | #3
On Tue, Nov 15, 2022 at 05:46:54PM +0100, Davide Tronchin wrote:
> My apologies, this is my first attempt to submit a patch to the kernel
> community.
> 
> > We've asked you repeatedly whether you for u-blox or not, but you keep
> > ignoring this question. Knowing this would allow us to better evaluate
> > the reasoning and motivation behind this this change.
> 
> Yes, i am a u-blox employee and i've been asked to integrate LARA-L6 in
> the linux kernel and update the current code for LARA-R6 00B (updating
> the PID from 0x90fa to 0x908b).

Thanks. Was it it also a colleague of yours that submitted the initial
PID then?

> > The above commit message still does not explain why you want to remove
> > it and whether it would be safe to do so. Why was added in the first
> > place? What u-blox products used the old PID?
> 
> The first prototype of LARA-R6 00B had 0x90fa PID but, just before the
> product finalization, it has been decided to adopt a new USB composition
> and consequently a change of PID was necessary.
> The 0x90fa PID has been used only for some internal prototypes, hence
> no u-blox products with that PID have been shipped to customers.
> As pointed out in the discussion, the 0x90fa PID is used by other module
> vendors which sell Qualcomm based modems, hence i proposed to remove the
> association between u-blox (thedefine UBLOX_PRODUCT_R6XX) and 0x90fa,
> moving it directly in the option_ids array.

Thanks, this is the kind of details we've been asking for. Please put
some of this in the commit in some form so that it is obvious from just
reading the commit message that the patch is correct and safe to apply.

Make sure to mention that this Qualcomm PID is used by other products
and that's why you're leaving it in. Perhaps a Link tag with a
reference to Lars message pointing this out is in place. For example:

Link: https://lore.kernel.org/all/6572c4e6-d8bc-b8d3-4396-d879e4e76338@gmail.com/

> > By just removing the define this is less of an issue, but you should
> > not make the life of reviewers harder by ignoring request to properly
> > motivate your changes and explain why they are safe to apply.
> 
> My apologies again, thanks for the patience.
> 
> > You can either put a shared changelog for the whole series in a cover
> > letter, or you describe changes to each individual patch. But mixing the
> > two styles as you do in this entry is just confusing.
> 
> Thanks for the suggestions. In order to simplify the submission process,
> i propose to split the submission for the LARA-L6 patches and the update
> for LARA-R6 00B.
> Do you think could it be feasible?

I don't think that's necessary now that you've provided some more
details. Just respin the series and address the review comments given
so far (either by rejecting a suggestion and explaining why, or by
incorporating it in your next submission).

It seems you only need to tweak some of the commit messages in a v6.

Johan
Davide Tronchin Nov. 16, 2022, 9:50 a.m. UTC | #4
> > Yes, i am a u-blox employee and i've been asked to integrate LARA-L6 in
> > the linux kernel and update the current code for LARA-R6 00B (updating
> > the PID from 0x90fa to 0x908b).
>
> Thanks. Was it it also a colleague of yours that submitted the initial
> PID then?

Correct, the initial PID has been submitted by another u-blox employee.

> > The first prototype of LARA-R6 00B had 0x90fa PID but, just before the
> > product finalization, it has been decided to adopt a new USB composition
> > and consequently a change of PID was necessary.
> > The 0x90fa PID has been used only for some internal prototypes, hence
> > no u-blox products with that PID have been shipped to customers.
> > As pointed out in the discussion, the 0x90fa PID is used by other module
> > vendors which sell Qualcomm based modems, hence i proposed to remove the
> > association between u-blox (thedefine UBLOX_PRODUCT_R6XX) and 0x90fa,
> > moving it directly in the option_ids array.
>
> Thanks, this is the kind of details we've been asking for. Please put
> some of this in the commit in some form so that it is obvious from just
> reading the commit message that the patch is correct and safe to apply.
>
> Make sure to mention that this Qualcomm PID is used by other products
> and that's why you're leaving it in. Perhaps a Link tag with a
> reference to Lars message pointing this out is in place. For example:

Ok thanks for the suggestions. I will add all the details to the v6 1/3
patch.

> > Thanks for the suggestions. In order to simplify the submission process,
> > i propose to split the submission for the LARA-L6 patches and the update
> > for LARA-R6 00B.
> > Do you think could it be feasible?
>
> I don't think that's necessary now that you've provided some more
> details. Just respin the series and address the review comments given
> so far (either by rejecting a suggestion and explaining why, or by
> incorporating it in your next submission).
>
> It seems you only need to tweak some of the commit messages in a v6.

I will submit a v6 version of the patch with the provided suggestions.

I have just one doubt, in patch v6, should i edit also the previous
sent changelog by describing changes to each indiviual sub-patch?

Thank you for the patience.
Davide
Johan Hovold Nov. 16, 2022, 9:55 a.m. UTC | #5
On Wed, Nov 16, 2022 at 10:50:42AM +0100, Davide Tronchin wrote:

> > > Thanks for the suggestions. In order to simplify the submission process,
> > > i propose to split the submission for the LARA-L6 patches and the update
> > > for LARA-R6 00B.
> > > Do you think could it be feasible?
> >
> > I don't think that's necessary now that you've provided some more
> > details. Just respin the series and address the review comments given
> > so far (either by rejecting a suggestion and explaining why, or by
> > incorporating it in your next submission).
> >
> > It seems you only need to tweak some of the commit messages in a v6.
> 
> I will submit a v6 version of the patch with the provided suggestions.
> 
> I have just one doubt, in patch v6, should i edit also the previous
> sent changelog by describing changes to each indiviual sub-patch?

No, you can leave them as they are, and just use the "per-patch" commit
log style for v6.

Johan
diff mbox series

Patch

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 697683e3fbff..b93285b5175b 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -240,7 +240,6 @@  static void option_instat_callback(struct urb *urb);
 #define QUECTEL_PRODUCT_UC15			0x9090
 /* These u-blox products use Qualcomm's vendor ID */
 #define UBLOX_PRODUCT_R410M			0x90b2
-#define UBLOX_PRODUCT_R6XX			0x90fa
 /* These Yuga products use Qualcomm's vendor ID */
 #define YUGA_PRODUCT_CLM920_NC5			0x9625
 
@@ -1124,7 +1123,7 @@  static const struct usb_device_id option_ids[] = {
 	/* u-blox products using Qualcomm vendor ID */
 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, UBLOX_PRODUCT_R410M),
 	  .driver_info = RSVD(1) | RSVD(3) },
-	{ USB_DEVICE(QUALCOMM_VENDOR_ID, UBLOX_PRODUCT_R6XX),
+	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x90fa),
 	  .driver_info = RSVD(3) },
 	/* Quectel products using Quectel vendor ID */
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC21, 0xff, 0xff, 0xff),