* Re: [RFC] ARM: dts: imx: Fix the AR803X phy-mode
2019-03-30 15:50 [RFC] ARM: dts: imx: Fix the AR803X phy-mode Fabio Estevam
@ 2019-03-30 16:18 ` Andrew Lunn
2019-04-01 12:53 ` Fabio Estevam
2019-03-30 19:06 ` Baruch Siach
` (4 subsequent siblings)
5 siblings, 1 reply; 13+ messages in thread
From: Andrew Lunn @ 2019-03-30 16:18 UTC (permalink / raw)
To: Fabio Estevam
Cc: linux, smoch, stwiss.opensource, linux-imx, kernel, shawnguo,
linux-arm-kernel
> Hi,
>
> Marking it as RFC in the hope of getting some feedback as to how
> to proceed with fixing this regression on 5.1-rc1.
I think it should be safe to propose these patches go to stable.
RGMII-ID has been supported since
2e5f9f281ee8 ("net: phy: at803x: Allow specifying the RGMII RX clock delay via phy mode")
Which is somewhere around v4.4. So back porting them should be fine.
Andrew
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [RFC] ARM: dts: imx: Fix the AR803X phy-mode
2019-03-30 16:18 ` Andrew Lunn
@ 2019-04-01 12:53 ` Fabio Estevam
0 siblings, 0 replies; 13+ messages in thread
From: Fabio Estevam @ 2019-04-01 12:53 UTC (permalink / raw)
To: Andrew Lunn
Cc: Russell King - ARM Linux, Soeren Moch, Steve Twiss,
NXP Linux Team, Sascha Hauer, Shawn Guo,
moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE
Hi Andrew,
On Sat, Mar 30, 2019 at 1:18 PM Andrew Lunn <andrew@lunn.ch> wrote:
>
> > Hi,
> >
> > Marking it as RFC in the hope of getting some feedback as to how
> > to proceed with fixing this regression on 5.1-rc1.
>
> I think it should be safe to propose these patches go to stable.
>
> RGMII-ID has been supported since
>
> 2e5f9f281ee8 ("net: phy: at803x: Allow specifying the RGMII RX clock delay via phy mode")
>
> Which is somewhere around v4.4. So back porting them should be fine.
This commit landed in v4.5, so I marked it as:
Cc: <stable@vger.kernel.org> # 4.9+
I probably will need to manually generate versions for the some of the
stable versions.
Thanks
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [RFC] ARM: dts: imx: Fix the AR803X phy-mode
2019-03-30 15:50 [RFC] ARM: dts: imx: Fix the AR803X phy-mode Fabio Estevam
2019-03-30 16:18 ` Andrew Lunn
@ 2019-03-30 19:06 ` Baruch Siach
2019-03-30 19:11 ` Fabio Estevam
2019-03-31 10:44 ` Soeren Moch
` (3 subsequent siblings)
5 siblings, 1 reply; 13+ messages in thread
From: Baruch Siach @ 2019-03-30 19:06 UTC (permalink / raw)
To: Fabio Estevam
Cc: andrew, linux, smoch, stwiss.opensource, linux-imx, kernel,
shawnguo, linux-arm-kernel
Hi Fabio,
On Sat, Mar 30 2019, Fabio Estevam wrote:
> Commit 6d4cd041f0af ("net: phy: at803x: disable delay only for RGMII mode")
> exposed an issue on imx DTS files using AR8031/AR8035 PHYs.
>
> The end result is that the boards can no longer obtain an IP address
> via UDHCP, for example.
>
> Quoting Andrew Lunn:
>
> "The problem here is, all the DTs were broken since day 0. However,
> because the PHY driver was also broken, nobody noticed and it
> worked. Now that the PHY driver has been fixed, all the bugs in the
> DTs now become an issue"
>
> To fix this problem, the phy-mode property needs to be "rgmii-id", which
> has the following meaning as per
> Documentation/devicetree/bindings/net/ethernet.txt:
>
> "RGMII with internal RX and TX delays provided by the PHY, the MAC should
> not add the RX or TX delays in this case)"
>
> Tested on imx6-sabresd, imx6sx-sdb and imx7d-pico boards with
> successfully restored networking.
>
> Signed-off-by: Fabio Estevam <festevam@gmail.com>
> ---
> Hi,
>
> Marking it as RFC in the hope of getting some feedback as to how
> to proceed with fixing this regression on 5.1-rc1.
>
> It's not possible to know if there are other imx boards in tree that use
> AR803X, so here is an attempt.
>
> mx6-sabresd, imx6sx-sdb and imx7d-pico have been successfully tested.
The SolidRun SOM is also affected, I believe (imx6qdl-sr-som.dtsi,
AR8035). Would you be able to test it on your side?
Thanks,
baruch
--
http://baruch.siach.name/blog/ ~. .~ Tk Open Systems
=}------------------------------------------------ooO--U--Ooo------------{=
- baruch@tkos.co.il - tel: +972.52.368.4656, http://www.tkos.co.il -
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [RFC] ARM: dts: imx: Fix the AR803X phy-mode
2019-03-30 19:06 ` Baruch Siach
@ 2019-03-30 19:11 ` Fabio Estevam
2019-03-31 3:50 ` Baruch Siach
0 siblings, 1 reply; 13+ messages in thread
From: Fabio Estevam @ 2019-03-30 19:11 UTC (permalink / raw)
To: Baruch Siach
Cc: Andrew Lunn, Russell King - ARM Linux, Soeren Moch, Steve Twiss,
NXP Linux Team, Sascha Hauer, Shawn Guo,
moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE
Hi Baruch,
On Sat, Mar 30, 2019 at 4:06 PM Baruch Siach <baruch@tkos.co.il> wrote:
> The SolidRun SOM is also affected, I believe (imx6qdl-sr-som.dtsi,
> AR8035). Would you be able to test it on your side?
This patch does touch imx6qdl-sr-som.dtsi, but I don't have access to
my Cubox at the moment.
Could you please test it?
Thanks
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [RFC] ARM: dts: imx: Fix the AR803X phy-mode
2019-03-30 19:11 ` Fabio Estevam
@ 2019-03-31 3:50 ` Baruch Siach
0 siblings, 0 replies; 13+ messages in thread
From: Baruch Siach @ 2019-03-31 3:50 UTC (permalink / raw)
To: Fabio Estevam
Cc: Andrew Lunn, Russell King - ARM Linux, Soeren Moch, Steve Twiss,
NXP Linux Team, Sascha Hauer, Shawn Guo,
moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE
Hi Fabio,
On Sat, Mar 30 2019, Fabio Estevam wrote:
> On Sat, Mar 30, 2019 at 4:06 PM Baruch Siach <baruch@tkos.co.il> wrote:
>
>> The SolidRun SOM is also affected, I believe (imx6qdl-sr-som.dtsi,
>> AR8035). Would you be able to test it on your side?
>
> This patch does touch imx6qdl-sr-som.dtsi, but I don't have access to
> my Cubox at the moment.
I missed that.
> Could you please test it?
Sure. Tested on Hummingboard2. I verified that networking is broken
without this patch (v5.1-rc2). This patch fixes the problem.
Tested-by: Baruch Siach <baruch@tkos.co.il>
Thanks,
baruch
--
http://baruch.siach.name/blog/ ~. .~ Tk Open Systems
=}------------------------------------------------ooO--U--Ooo------------{=
- baruch@tkos.co.il - tel: +972.52.368.4656, http://www.tkos.co.il -
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [RFC] ARM: dts: imx: Fix the AR803X phy-mode
2019-03-30 15:50 [RFC] ARM: dts: imx: Fix the AR803X phy-mode Fabio Estevam
2019-03-30 16:18 ` Andrew Lunn
2019-03-30 19:06 ` Baruch Siach
@ 2019-03-31 10:44 ` Soeren Moch
2019-04-01 8:38 ` Steve Twiss
` (2 subsequent siblings)
5 siblings, 0 replies; 13+ messages in thread
From: Soeren Moch @ 2019-03-31 10:44 UTC (permalink / raw)
To: Fabio Estevam, shawnguo
Cc: andrew, linux, stwiss.opensource, linux-imx, kernel, linux-arm-kernel
On 30.03.19 16:50, Fabio Estevam wrote:
> Commit 6d4cd041f0af ("net: phy: at803x: disable delay only for RGMII mode")
> exposed an issue on imx DTS files using AR8031/AR8035 PHYs.
>
> The end result is that the boards can no longer obtain an IP address
> via UDHCP, for example.
>
> Quoting Andrew Lunn:
>
> "The problem here is, all the DTs were broken since day 0. However,
> because the PHY driver was also broken, nobody noticed and it
> worked. Now that the PHY driver has been fixed, all the bugs in the
> DTs now become an issue"
>
> To fix this problem, the phy-mode property needs to be "rgmii-id", which
> has the following meaning as per
> Documentation/devicetree/bindings/net/ethernet.txt:
>
> "RGMII with internal RX and TX delays provided by the PHY, the MAC should
> not add the RX or TX delays in this case)"
>
> Tested on imx6-sabresd, imx6sx-sdb and imx7d-pico boards with
> successfully restored networking.
>
> Signed-off-by: Fabio Estevam <festevam@gmail.com>
> ---
> Hi,
>
> Marking it as RFC in the hope of getting some feedback as to how
> to proceed with fixing this regression on 5.1-rc1.
I can confirm this regression on a tbs2910 board, and also thatthis
patch fixes this.
Tested-by: Soeren Moch <smoch@web.de>
I also think it is the right solution to fix the broken dtbs, like in
this patch, instead of adding more complicated backward compatibility stuff.
Thanks,
Soeren
>
> It's not possible to know if there are other imx boards in tree that use
> AR803X, so here is an attempt.
>
> mx6-sabresd, imx6sx-sdb and imx7d-pico have been successfully tested.
>
> Thanks
>
> arch/arm/boot/dts/imx6q-tbs2910.dts | 2 +-
> arch/arm/boot/dts/imx6qdl-sabresd.dtsi | 2 +-
> arch/arm/boot/dts/imx6qdl-sr-som.dtsi | 2 +-
> arch/arm/boot/dts/imx6qdl-wandboard.dtsi | 2 +-
> arch/arm/boot/dts/imx6sx-sdb.dtsi | 2 +-
> arch/arm/boot/dts/imx7d-pico.dtsi | 2 +-
> 6 files changed, 6 insertions(+), 6 deletions(-)
>
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^ permalink raw reply [flat|nested] 13+ messages in thread
* RE: [RFC] ARM: dts: imx: Fix the AR803X phy-mode
2019-03-30 15:50 [RFC] ARM: dts: imx: Fix the AR803X phy-mode Fabio Estevam
@ 2019-04-01 8:38 ` Steve Twiss
2019-03-30 19:06 ` Baruch Siach
` (4 subsequent siblings)
5 siblings, 0 replies; 13+ messages in thread
From: Steve Twiss @ 2019-04-01 8:38 UTC (permalink / raw)
To: Fabio Estevam, shawnguo
Cc: PENGUTRONIX, IMXNXP, smoch, ARMLINUX, andrew, LINUX-ARM-KERNEL,
LKML, Support Opensource, Adam Thomson
Hi Fabio,
On 30 March 2019 15:51 Fabio Estevam, wrote:
> Subject: [RFC] ARM: dts: imx: Fix the AR803X phy-mode
>
> Commit 6d4cd041f0af ("net: phy: at803x: disable delay only for RGMII mode")
> exposed an issue on imx DTS files using AR8031/AR8035 PHYs.
>
> The end result is that the boards can no longer obtain an IP address
> via UDHCP, for example.
[...]
> arch/arm/boot/dts/imx6qdl-sabresd.dtsi | 2 +-
[...]
> diff --git a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
> b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
> index a0705066ccba..185fb17a3500 100644
> --- a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
> @@ -202,7 +202,7 @@
> &fec {
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_enet>;
> - phy-mode = "rgmii";
> + phy-mode = "rgmii-id";
> phy-reset-gpios = <&gpio1 25 GPIO_ACTIVE_LOW>;
> status = "okay";
> };
[...]
This patch looks surprisingly similar to this one ;)
https://lore.kernel.org/patchwork/patch/1052588/
Link: https://lkml.kernel.org/r/1397569821-5530-4-git-send-email-thomas.petazzoni@free-electrons.com
Tested-by: Steve Twiss <stwiss.opensource@diasemi.com>
Tested-by: Adam Thomson <Adam.Thomson@diasemi.com>
Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
Regards,
Steve
^ permalink raw reply [flat|nested] 13+ messages in thread
* RE: [RFC] ARM: dts: imx: Fix the AR803X phy-mode
@ 2019-04-01 8:38 ` Steve Twiss
0 siblings, 0 replies; 13+ messages in thread
From: Steve Twiss @ 2019-04-01 8:38 UTC (permalink / raw)
To: Fabio Estevam, shawnguo
Cc: andrew, Support Opensource, ARMLINUX, LKML, smoch, IMXNXP,
PENGUTRONIX, Adam Thomson, LINUX-ARM-KERNEL
Hi Fabio,
On 30 March 2019 15:51 Fabio Estevam, wrote:
> Subject: [RFC] ARM: dts: imx: Fix the AR803X phy-mode
>
> Commit 6d4cd041f0af ("net: phy: at803x: disable delay only for RGMII mode")
> exposed an issue on imx DTS files using AR8031/AR8035 PHYs.
>
> The end result is that the boards can no longer obtain an IP address
> via UDHCP, for example.
[...]
> arch/arm/boot/dts/imx6qdl-sabresd.dtsi | 2 +-
[...]
> diff --git a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
> b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
> index a0705066ccba..185fb17a3500 100644
> --- a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
> @@ -202,7 +202,7 @@
> &fec {
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_enet>;
> - phy-mode = "rgmii";
> + phy-mode = "rgmii-id";
> phy-reset-gpios = <&gpio1 25 GPIO_ACTIVE_LOW>;
> status = "okay";
> };
[...]
This patch looks surprisingly similar to this one ;)
https://lore.kernel.org/patchwork/patch/1052588/
Link: https://lkml.kernel.org/r/1397569821-5530-4-git-send-email-thomas.petazzoni@free-electrons.com
Tested-by: Steve Twiss <stwiss.opensource@diasemi.com>
Tested-by: Adam Thomson <Adam.Thomson@diasemi.com>
Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
Regards,
Steve
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [RFC] ARM: dts: imx: Fix the AR803X phy-mode
2019-04-01 8:38 ` Steve Twiss
@ 2019-04-01 12:48 ` Fabio Estevam
-1 siblings, 0 replies; 13+ messages in thread
From: Fabio Estevam @ 2019-04-01 12:48 UTC (permalink / raw)
To: Steve Twiss
Cc: shawnguo, PENGUTRONIX, IMXNXP, smoch, ARMLINUX, andrew,
LINUX-ARM-KERNEL, LKML, Support Opensource, Adam Thomson
Hi Steve,
On Mon, Apr 1, 2019 at 5:38 AM Steve Twiss
<stwiss.opensource@diasemi.com> wrote:
> This patch looks surprisingly similar to this one ;)
> https://lore.kernel.org/patchwork/patch/1052588/
>
> Link: https://lkml.kernel.org/r/1397569821-5530-4-git-send-email-thomas.petazzoni@free-electrons.com
> Tested-by: Steve Twiss <stwiss.opensource@diasemi.com>
> Tested-by: Adam Thomson <Adam.Thomson@diasemi.com>
> Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
I put your attributions in the formal patch that I have just submitted.
Thanks
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [RFC] ARM: dts: imx: Fix the AR803X phy-mode
@ 2019-04-01 12:48 ` Fabio Estevam
0 siblings, 0 replies; 13+ messages in thread
From: Fabio Estevam @ 2019-04-01 12:48 UTC (permalink / raw)
To: Steve Twiss
Cc: andrew, Support Opensource, ARMLINUX, LKML, smoch, IMXNXP,
PENGUTRONIX, Adam Thomson, shawnguo, LINUX-ARM-KERNEL
Hi Steve,
On Mon, Apr 1, 2019 at 5:38 AM Steve Twiss
<stwiss.opensource@diasemi.com> wrote:
> This patch looks surprisingly similar to this one ;)
> https://lore.kernel.org/patchwork/patch/1052588/
>
> Link: https://lkml.kernel.org/r/1397569821-5530-4-git-send-email-thomas.petazzoni@free-electrons.com
> Tested-by: Steve Twiss <stwiss.opensource@diasemi.com>
> Tested-by: Adam Thomson <Adam.Thomson@diasemi.com>
> Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
I put your attributions in the formal patch that I have just submitted.
Thanks
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [RFC] ARM: dts: imx: Fix the AR803X phy-mode
2019-03-30 15:50 [RFC] ARM: dts: imx: Fix the AR803X phy-mode Fabio Estevam
` (3 preceding siblings ...)
2019-04-01 8:38 ` Steve Twiss
@ 2019-04-01 9:01 ` Sébastien Szymanski
2019-04-01 9:05 ` Marc Kleine-Budde
5 siblings, 0 replies; 13+ messages in thread
From: Sébastien Szymanski @ 2019-04-01 9:01 UTC (permalink / raw)
To: Fabio Estevam, shawnguo
Cc: andrew, linux, smoch, stwiss.opensource, linux-imx, kernel,
linux-arm-kernel
Hi Fabio,
On 3/30/19 4:50 PM, Fabio Estevam wrote:
> Commit 6d4cd041f0af ("net: phy: at803x: disable delay only for RGMII mode")
> exposed an issue on imx DTS files using AR8031/AR8035 PHYs.
>
> The end result is that the boards can no longer obtain an IP address
> via UDHCP, for example.
>
> Quoting Andrew Lunn:
>
> "The problem here is, all the DTs were broken since day 0. However,
> because the PHY driver was also broken, nobody noticed and it
> worked. Now that the PHY driver has been fixed, all the bugs in the
> DTs now become an issue"
>
> To fix this problem, the phy-mode property needs to be "rgmii-id", which
> has the following meaning as per
> Documentation/devicetree/bindings/net/ethernet.txt:
>
> "RGMII with internal RX and TX delays provided by the PHY, the MAC should
> not add the RX or TX delays in this case)"
>
> Tested on imx6-sabresd, imx6sx-sdb and imx7d-pico boards with
> successfully restored networking.
>
> Signed-off-by: Fabio Estevam <festevam@gmail.com>
> ---
> Hi,
>
> Marking it as RFC in the hope of getting some feedback as to how
> to proceed with fixing this regression on 5.1-rc1.
>
> It's not possible to know if there are other imx boards in tree that use
> AR803X, so here is an attempt.
>
> mx6-sabresd, imx6sx-sdb and imx7d-pico have been successfully tested.
>
> Thanks
APF6 SoM has AR8035. I confirm the issue and modifying the phy-mode
property to "rgmii-id" fixes it.
Can you please apply the fix to the APF6 SoM
(arch/arm/boot/dts/imx6qdl-apf6.dtsi) in your patch ?
Regards,
--
Sébastien Szymanski
Software engineer, Armadeus Systems
Tel: +33 (0)9 72 29 41 44
Fax: +33 (0)9 72 28 79 26
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [RFC] ARM: dts: imx: Fix the AR803X phy-mode
2019-03-30 15:50 [RFC] ARM: dts: imx: Fix the AR803X phy-mode Fabio Estevam
` (4 preceding siblings ...)
2019-04-01 9:01 ` Sébastien Szymanski
@ 2019-04-01 9:05 ` Marc Kleine-Budde
5 siblings, 0 replies; 13+ messages in thread
From: Marc Kleine-Budde @ 2019-04-01 9:05 UTC (permalink / raw)
To: Fabio Estevam, shawnguo
Cc: andrew, linux, smoch, stwiss.opensource, linux-imx, kernel,
linux-arm-kernel
[-- Attachment #1.1.1: Type: text/plain, Size: 2140 bytes --]
On 3/30/19 4:50 PM, Fabio Estevam wrote:
> Commit 6d4cd041f0af ("net: phy: at803x: disable delay only for RGMII mode")
> exposed an issue on imx DTS files using AR8031/AR8035 PHYs.
>
> The end result is that the boards can no longer obtain an IP address
> via UDHCP, for example.
>
> Quoting Andrew Lunn:
>
> "The problem here is, all the DTs were broken since day 0. However,
> because the PHY driver was also broken, nobody noticed and it
> worked. Now that the PHY driver has been fixed, all the bugs in the
> DTs now become an issue"
>
> To fix this problem, the phy-mode property needs to be "rgmii-id", which
> has the following meaning as per
> Documentation/devicetree/bindings/net/ethernet.txt:
>
> "RGMII with internal RX and TX delays provided by the PHY, the MAC should
> not add the RX or TX delays in this case)"
>
> Tested on imx6-sabresd, imx6sx-sdb and imx7d-pico boards with
> successfully restored networking.
>
> Signed-off-by: Fabio Estevam <festevam@gmail.com>
> ---
> Hi,
>
> Marking it as RFC in the hope of getting some feedback as to how
> to proceed with fixing this regression on 5.1-rc1.
>
> It's not possible to know if there are other imx boards in tree that use
> AR803X, so here is an attempt.
The riotboard is affected, too:
--- a/arch/arm/boot/dts/imx6dl-riotboard.dts
+++ b/arch/arm/boot/dts/imx6dl-riotboard.dts
@@ -92,7 +92,7 @@
&fec {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet>;
- phy-mode = "rgmii";
+ phy-mode = "rgmii-id";
phy-reset-gpios = <&gpio3 31 GPIO_ACTIVE_LOW>;
interrupts-extended = <&gpio1 6 IRQ_TYPE_LEVEL_HIGH>,
<&intc 0 119 IRQ_TYPE_LEVEL_HIGH>
Tested-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Marc
--
Pengutronix e.K. | Marc Kleine-Budde |
Industrial Linux Solutions | Phone: +49-231-2826-924 |
Vertretung West/Dortmund | Fax: +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |
[-- Attachment #1.2: OpenPGP digital signature --]
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[-- Attachment #2: Type: text/plain, Size: 176 bytes --]
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^ permalink raw reply [flat|nested] 13+ messages in thread