Re: [OpenWrt-Devel] [PATCH][RFC] build: disable target name in image filename

2020-06-15 Thread Paul Spooren



On 6/15/20 7:32 AM, Matthias Schiffer wrote:

I just think of ar71xx and ath79, where we have the same device but

different targets. Of course, the name won't be exactly equal, as ath79 will
have e.g. tplink_ prefix and ar71xx won't.
Isn't ar71xx removed from master builds? It's neither at snapshot
https://downloads.openwrt.org/snapshots/targets/ nor planed to be re-
added to any upcoming release, is it?

Yes, but it's just an example for a similar situation which might arise in the 
future. Then, we even might not have the current situation with the different 
device names, but may end up with completely identical names except for the 
target.


For bcm63xx, we have two subtargets that build the same devices.
If we look at PR#2957, we might have a now bmips target at some point

that features the same devices as bcm63xx.
Can you please explain why that's the case? Why do we offer different
images for the same device? I understand that for ar71xx -> ath79 within a

I don't have any idea why this situation at bcm63xx exists; I just got aware of 
it at some point. Maybe Noltari or KanjiMonster can help ...


transfer period but it's never the scope to offer different "flavors"
long term, is it?

This won't necessarily break anything, as images will still be in different

folders (at least in /bin).
I would be at least confusing and reverts the "unique profile name" idea.

However, we couldn't tell the difference between ar71xx/ath79 or similar

from the image name (easily) after this change, or whether it's generic or
smp for bcm63xx. For my personal taste, this drawback is bigger that the gain
we will get from removing the target/subtarget part.
Again, this sounds like a undesirable state where we not only build but also
maintain multiple images for the save device. Wouldn't it be possible to add
the target to all those "legacy images", however remove it wherever a target
uses device tree and images.mk aka has long term support?

Well, just look at the situation in 19.07. There we have both ar71xx and ath79 
for the same devices, and even if we wanted, it would actually be quite hard to 
really filter out the ath79 devices in ar71xx. I really don't think removing 
the target from image names will pay out in the future.


So, unless there is overwhelming support, I tend to NAK this.

:(

A compromise could be found by just removing the subtarget, but keeping the 
target in file names. This would mostly solve your problem with the generic 
names (at least there would be less duplicate info), but there would be 
significantly less situations where this was an impediment. Normally, no 
duplicate devices in a target exist, and if they are moved between subtargets, 
they are actually moved and not copied. The only remaining problem I can think 
of at the moment would be the bcm63xx situation, and maybe that one can be 
resolved at low cost.

Best

Adrian


What about x86-{generic,legacy,64,...}? These subtargets each define a
device just called "generic", with the image names only distinguished by
their subtarget name.
That's why I created this PR earlier, I should have created a patchset 
instead of splitting it on the ML and GitHub...

https://github.com/openwrt/openwrt/pull/3082

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Re: [OpenWrt-Devel] [PATCH][RFC] build: disable target name in image filename

2020-06-15 Thread Matthias Schiffer


>>> I just think of ar71xx and ath79, where we have the same device but
>> different targets. Of course, the name won't be exactly equal, as ath79 will
>> have e.g. tplink_ prefix and ar71xx won't.
>> Isn't ar71xx removed from master builds? It's neither at snapshot
>> https://downloads.openwrt.org/snapshots/targets/ nor planed to be re-
>> added to any upcoming release, is it?
> 
> Yes, but it's just an example for a similar situation which might arise in 
> the future. Then, we even might not have the current situation with the 
> different device names, but may end up with completely identical names except 
> for the target.
> 
>>> For bcm63xx, we have two subtargets that build the same devices.
>>> If we look at PR#2957, we might have a now bmips target at some point
>> that features the same devices as bcm63xx.
>> Can you please explain why that's the case? Why do we offer different
>> images for the same device? I understand that for ar71xx -> ath79 within a
> 
> I don't have any idea why this situation at bcm63xx exists; I just got aware 
> of it at some point. Maybe Noltari or KanjiMonster can help ...
> 
>> transfer period but it's never the scope to offer different "flavors"
>> long term, is it?
>>> This won't necessarily break anything, as images will still be in different
>> folders (at least in /bin).
>> I would be at least confusing and reverts the "unique profile name" idea.
>>> However, we couldn't tell the difference between ar71xx/ath79 or similar
>> from the image name (easily) after this change, or whether it's generic or
>> smp for bcm63xx. For my personal taste, this drawback is bigger that the gain
>> we will get from removing the target/subtarget part.
>> Again, this sounds like a undesirable state where we not only build but also
>> maintain multiple images for the save device. Wouldn't it be possible to add
>> the target to all those "legacy images", however remove it wherever a target
>> uses device tree and images.mk aka has long term support?
> 
> Well, just look at the situation in 19.07. There we have both ar71xx and 
> ath79 for the same devices, and even if we wanted, it would actually be quite 
> hard to really filter out the ath79 devices in ar71xx. I really don't think 
> removing the target from image names will pay out in the future.
> 
>>> So, unless there is overwhelming support, I tend to NAK this.
>> :(
> 
> A compromise could be found by just removing the subtarget, but keeping the 
> target in file names. This would mostly solve your problem with the generic 
> names (at least there would be less duplicate info), but there would be 
> significantly less situations where this was an impediment. Normally, no 
> duplicate devices in a target exist, and if they are moved between 
> subtargets, they are actually moved and not copied. The only remaining 
> problem I can think of at the moment would be the bcm63xx situation, and 
> maybe that one can be resolved at low cost.
> 
> Best
> 
> Adrian


What about x86-{generic,legacy,64,...}? These subtargets each define a
device just called "generic", with the image names only distinguished by
their subtarget name.

Matthias


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Re: [OpenWrt-Devel] [PATCH][RFC] build: disable target name in image filename

2020-06-14 Thread mail
Hi,

> -Original Message-
> From: openwrt-devel [mailto:openwrt-devel-boun...@lists.openwrt.org]
> On Behalf Of Paul Spooren
> Sent: Sonntag, 14. Juni 2020 22:22
> To: m...@adrianschmutzler.de; openwrt-devel@lists.openwrt.org
> Subject: Re: [OpenWrt-Devel] [PATCH][RFC] build: disable target name in
> image filename
> 
> Hi,
> 
> On 6/14/20 10:00 AM, m...@adrianschmutzler.de wrote:
> >> -Original Message-
> >> From: openwrt-devel [mailto:openwrt-devel-
> boun...@lists.openwrt.org]
> >> On Behalf Of Paul Spooren
> >> Sent: Sonntag, 14. Juni 2020 11:34
> >> To: openwrt-devel@lists.openwrt.org
> >> Subject: [OpenWrt-Devel] [PATCH][RFC] build: disable target name in
> >> image filename
> >>
> >> The target/subtarget information in image filenames is barely of any
> >> use for developers or end users.
> >>
> >> A developer reads the profile name and the target is either obvious
> >> due to previous work or `cd targets/ && grep -r ` tells the
> >> target within 3ms. If no buildroot is available `cat  | tail
> >> -c 200` allows a look at the attached metadata which includes the
> target/subtarget.
> >>
> >> For users the information is entirely useless and maybe even harmful.
> >> Target names like `cortexa9` could easily be mistaken as an actual
> >> device name while the only relevant information would be
> `linksys_wrt3200acm`.
> >> Images are more realistically downloaded via a Wiki entry or a
> >> firmware wizard.
> >>
> >> This commit therefore adds the new image option called
> >> CONFIG_TARGET_FILENAMES to make the target/subtarget filename part
> >> optional. It is disabled by default.
> >>
> >> As the profile name `generic` appears multiple times in the x86
> >> target as well as in oceton and ath25, the proposed patch on GitHub
> >> should be merged
> >> first:
> >> * treewide: use unique profile names #3082
> >> https://github.com/openwrt/openwrt/pull/3082
> >>
> >> Newly produced files would look like the following:
> >> * openwrt-linksys_wrt3200acm-initramfs-kernel.bin
> >> * openwrt-linksys_wrt3200acm.manifest
> >> * openwrt-linksys_wrt3200acm-squashfs-factory.img
> >> * openwrt-linksys_wrt3200acm-squashfs-sysupgrade.bin
> > I just think of ar71xx and ath79, where we have the same device but
> different targets. Of course, the name won't be exactly equal, as ath79 will
> have e.g. tplink_ prefix and ar71xx won't.
> Isn't ar71xx removed from master builds? It's neither at snapshot
> https://downloads.openwrt.org/snapshots/targets/ nor planed to be re-
> added to any upcoming release, is it?

Yes, but it's just an example for a similar situation which might arise in the 
future. Then, we even might not have the current situation with the different 
device names, but may end up with completely identical names except for the 
target.

> > For bcm63xx, we have two subtargets that build the same devices.
> > If we look at PR#2957, we might have a now bmips target at some point
> that features the same devices as bcm63xx.
> Can you please explain why that's the case? Why do we offer different
> images for the same device? I understand that for ar71xx -> ath79 within a

I don't have any idea why this situation at bcm63xx exists; I just got aware of 
it at some point. Maybe Noltari or KanjiMonster can help ...

> transfer period but it's never the scope to offer different "flavors"
> long term, is it?
> > This won't necessarily break anything, as images will still be in different
> folders (at least in /bin).
> I would be at least confusing and reverts the "unique profile name" idea.
> > However, we couldn't tell the difference between ar71xx/ath79 or similar
> from the image name (easily) after this change, or whether it's generic or
> smp for bcm63xx. For my personal taste, this drawback is bigger that the gain
> we will get from removing the target/subtarget part.
> Again, this sounds like a undesirable state where we not only build but also
> maintain multiple images for the save device. Wouldn't it be possible to add
> the target to all those "legacy images", however remove it wherever a target
> uses device tree and images.mk aka has long term support?

Well, just look at the situation in 19.07. There we have both ar71xx and ath79 
for the same devices, and even if we wanted, it would actually be quite hard to 
really filter out the ath79 devices in ar71xx. I really don't think removing 
the target from image names will pay out in the future.

> > So, unless there is overwhe

Re: [OpenWrt-Devel] [PATCH][RFC] build: disable target name in image filename

2020-06-14 Thread Paul Spooren

Hi,

On 6/14/20 10:00 AM, m...@adrianschmutzler.de wrote:

-Original Message-
From: openwrt-devel [mailto:openwrt-devel-boun...@lists.openwrt.org]
On Behalf Of Paul Spooren
Sent: Sonntag, 14. Juni 2020 11:34
To: openwrt-devel@lists.openwrt.org
Subject: [OpenWrt-Devel] [PATCH][RFC] build: disable target name in image
filename

The target/subtarget information in image filenames is barely of any use for
developers or end users.

A developer reads the profile name and the target is either obvious due to
previous work or `cd targets/ && grep -r ` tells the target within
3ms. If no buildroot is available `cat  | tail -c 200` allows a look at 
the
attached metadata which includes the target/subtarget.

For users the information is entirely useless and maybe even harmful.
Target names like `cortexa9` could easily be mistaken as an actual device
name while the only relevant information would be `linksys_wrt3200acm`.
Images are more realistically downloaded via a Wiki entry or a firmware
wizard.

This commit therefore adds the new image option called
CONFIG_TARGET_FILENAMES to make the target/subtarget filename part
optional. It is disabled by default.

As the profile name `generic` appears multiple times in the x86 target as well
as in oceton and ath25, the proposed patch on GitHub should be merged
first:
* treewide: use unique profile names #3082
https://github.com/openwrt/openwrt/pull/3082

Newly produced files would look like the following:
* openwrt-linksys_wrt3200acm-initramfs-kernel.bin
* openwrt-linksys_wrt3200acm.manifest
* openwrt-linksys_wrt3200acm-squashfs-factory.img
* openwrt-linksys_wrt3200acm-squashfs-sysupgrade.bin

I just think of ar71xx and ath79, where we have the same device but different 
targets. Of course, the name won't be exactly equal, as ath79 will have e.g. 
tplink_ prefix and ar71xx won't.
Isn't ar71xx removed from master builds? It's neither at snapshot 
https://downloads.openwrt.org/snapshots/targets/ nor planed to be 
re-added to any upcoming release, is it?

For bcm63xx, we have two subtargets that build the same devices.
If we look at PR#2957, we might have a now bmips target at some point that 
features the same devices as bcm63xx.
Can you please explain why that's the case? Why do we offer different 
images for the same device? I understand that for ar71xx -> ath79 within 
a transfer period but it's never the scope to offer different "flavors" 
long term, is it?

This won't necessarily break anything, as images will still be in different 
folders (at least in /bin).

I would be at least confusing and reverts the "unique profile name" idea.

However, we couldn't tell the difference between ar71xx/ath79 or similar from 
the image name (easily) after this change, or whether it's generic or smp for 
bcm63xx. For my personal taste, this drawback is bigger that the gain we will 
get from removing the target/subtarget part.
Again, this sounds like a undesirable state where we not only build but 
also maintain multiple images for the save device. Wouldn't it be 
possible to add the target to all those "legacy images", however remove 
it wherever a target uses device tree and images.mk aka has long term 
support?

So, unless there is overwhelming support, I tend to NAK this.

:(

Best

Paul



Signed-off-by: Paul Spooren 
---
It's been a while since I made a controversial patch[0] so it feels about time.

[0]: https://github.com/openwrt/openwrt/pull/2107

  include/image.mk   | 9 +
  package/base-files/image-config.in | 9 +
  2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/include/image.mk b/include/image.mk index
984b64fb9c..c6fc467c9e 100644
--- a/include/image.mk
+++ b/include/image.mk
@@ -37,11 +37,12 @@ KDIR=$(KERNEL_BUILD_DIR)
KDIR_TMP=$(KDIR)/tmp
DTS_DIR:=$(LINUX_DIR)/arch/$(LINUX_KARCH)/boot/dts

+IMG_PREFIX_TARGET:=$(if $(CONFIG_TARGET_FILENAMES),$(BOARD)$(if
+$(SUBTARGET),-$(SUBTARGET))-)
  IMG_PREFIX_EXTRA:=$(if $(EXTRA_IMAGE_NAME),$(call
sanitize,$(EXTRA_IMAGE_NAME))-)  IMG_PREFIX_VERNUM:=$(if
$(CONFIG_VERSION_FILENAMES),$(call sanitize,$(VERSION_NUMBER))-)
IMG_PREFIX_VERCODE:=$(if $(CONFIG_VERSION_CODE_FILENAMES),$(call
sanitize,$(VERSION_CODE))-)

-IMG_PREFIX:=$(VERSION_DIST_SANITIZED)-
$(IMG_PREFIX_VERNUM)$(IMG_PREFIX_VERCODE)$(IMG_PREFIX_EXTRA)$
(BOARD)$(if $(SUBTARGET),-$(SUBTARGET))
+IMG_PREFIX:=$(VERSION_DIST_SANITIZED)-
$(IMG_PREFIX_VERNUM)$(IMG_PREFIX_
+VERCODE)$(IMG_PREFIX_EXTRA)$(IMG_PREFIX_TARGET)
  IMG_ROOTFS:=$(IMG_PREFIX)-rootfs
  IMG_COMBINED:=$(IMG_PREFIX)-combined
  IMG_PART_SIGNATURE:=$(shell echo
$(SOURCE_DATE_EPOCH)$(LINUX_VERMAGIC) | mkhash md5 | cut -b1-8)
@@ -293,7 +294,7 @@ endef

  define Image/Manifest
$(call opkg,$(TARGET_DIR_ORIG)) list-installed > \
-   $(BIN_DIR)/$(IMG_PREFIX)$(if $(PROFILE_SANITIZED),-
$(PROFILE_SANITIZED)).manifest
+   $(BIN_DIR)/$(IMG_PREFIX)$(if
+$(PROFILE_SANITIZED),$(PROFILE_SANITIZED)).manifest
  endef

  define 

Re: [OpenWrt-Devel] [PATCH][RFC] build: disable target name in image filename

2020-06-14 Thread mail
Hi,

> -Original Message-
> From: openwrt-devel [mailto:openwrt-devel-boun...@lists.openwrt.org]
> On Behalf Of Paul Spooren
> Sent: Sonntag, 14. Juni 2020 11:34
> To: openwrt-devel@lists.openwrt.org
> Subject: [OpenWrt-Devel] [PATCH][RFC] build: disable target name in image
> filename
> 
> The target/subtarget information in image filenames is barely of any use for
> developers or end users.
> 
> A developer reads the profile name and the target is either obvious due to
> previous work or `cd targets/ && grep -r ` tells the target within
> 3ms. If no buildroot is available `cat  | tail -c 200` allows a look 
> at the
> attached metadata which includes the target/subtarget.
> 
> For users the information is entirely useless and maybe even harmful.
> Target names like `cortexa9` could easily be mistaken as an actual device
> name while the only relevant information would be `linksys_wrt3200acm`.
> Images are more realistically downloaded via a Wiki entry or a firmware
> wizard.
> 
> This commit therefore adds the new image option called
> CONFIG_TARGET_FILENAMES to make the target/subtarget filename part
> optional. It is disabled by default.
> 
> As the profile name `generic` appears multiple times in the x86 target as well
> as in oceton and ath25, the proposed patch on GitHub should be merged
> first:
> * treewide: use unique profile names #3082
> https://github.com/openwrt/openwrt/pull/3082
> 
> Newly produced files would look like the following:
> * openwrt-linksys_wrt3200acm-initramfs-kernel.bin
> * openwrt-linksys_wrt3200acm.manifest
> * openwrt-linksys_wrt3200acm-squashfs-factory.img
> * openwrt-linksys_wrt3200acm-squashfs-sysupgrade.bin

I just think of ar71xx and ath79, where we have the same device but different 
targets. Of course, the name won't be exactly equal, as ath79 will have e.g. 
tplink_ prefix and ar71xx won't.
For bcm63xx, we have two subtargets that build the same devices.
If we look at PR#2957, we might have a now bmips target at some point that 
features the same devices as bcm63xx.

This won't necessarily break anything, as images will still be in different 
folders (at least in /bin).

However, we couldn't tell the difference between ar71xx/ath79 or similar from 
the image name (easily) after this change, or whether it's generic or smp for 
bcm63xx. For my personal taste, this drawback is bigger that the gain we will 
get from removing the target/subtarget part.

So, unless there is overwhelming support, I tend to NAK this.

Best

Adrian

> 
> Signed-off-by: Paul Spooren 
> ---
> It's been a while since I made a controversial patch[0] so it feels about 
> time.
> 
> [0]: https://github.com/openwrt/openwrt/pull/2107
> 
>  include/image.mk   | 9 +
>  package/base-files/image-config.in | 9 +
>  2 files changed, 14 insertions(+), 4 deletions(-)
> 
> diff --git a/include/image.mk b/include/image.mk index
> 984b64fb9c..c6fc467c9e 100644
> --- a/include/image.mk
> +++ b/include/image.mk
> @@ -37,11 +37,12 @@ KDIR=$(KERNEL_BUILD_DIR)
> KDIR_TMP=$(KDIR)/tmp
> DTS_DIR:=$(LINUX_DIR)/arch/$(LINUX_KARCH)/boot/dts
> 
> +IMG_PREFIX_TARGET:=$(if $(CONFIG_TARGET_FILENAMES),$(BOARD)$(if
> +$(SUBTARGET),-$(SUBTARGET))-)
>  IMG_PREFIX_EXTRA:=$(if $(EXTRA_IMAGE_NAME),$(call
> sanitize,$(EXTRA_IMAGE_NAME))-)  IMG_PREFIX_VERNUM:=$(if
> $(CONFIG_VERSION_FILENAMES),$(call sanitize,$(VERSION_NUMBER))-)
> IMG_PREFIX_VERCODE:=$(if $(CONFIG_VERSION_CODE_FILENAMES),$(call
> sanitize,$(VERSION_CODE))-)
> 
> -IMG_PREFIX:=$(VERSION_DIST_SANITIZED)-
> $(IMG_PREFIX_VERNUM)$(IMG_PREFIX_VERCODE)$(IMG_PREFIX_EXTRA)$
> (BOARD)$(if $(SUBTARGET),-$(SUBTARGET))
> +IMG_PREFIX:=$(VERSION_DIST_SANITIZED)-
> $(IMG_PREFIX_VERNUM)$(IMG_PREFIX_
> +VERCODE)$(IMG_PREFIX_EXTRA)$(IMG_PREFIX_TARGET)
>  IMG_ROOTFS:=$(IMG_PREFIX)-rootfs
>  IMG_COMBINED:=$(IMG_PREFIX)-combined
>  IMG_PART_SIGNATURE:=$(shell echo
> $(SOURCE_DATE_EPOCH)$(LINUX_VERMAGIC) | mkhash md5 | cut -b1-8)
> @@ -293,7 +294,7 @@ endef
> 
>  define Image/Manifest
>   $(call opkg,$(TARGET_DIR_ORIG)) list-installed > \
> - $(BIN_DIR)/$(IMG_PREFIX)$(if $(PROFILE_SANITIZED),-
> $(PROFILE_SANITIZED)).manifest
> + $(BIN_DIR)/$(IMG_PREFIX)$(if
> +$(PROFILE_SANITIZED),$(PROFILE_SANITIZED)).manifest
>  endef
> 
>  define Image/gzip-ext4-padded-squashfs
> @@ -317,7 +318,7 @@ ifdef CONFIG_TARGET_ROOTFS_TARGZ
>define Image/Build/targz
>   $(TAR) -cp --numeric-owner --owner=0 --group=0 --mode=a-s --
> sort=name \
>   $(if $(SOURCE_DATE_EPOCH),--
> mtime="@$(SOURCE_DATE_EPOCH)") \
> - -C $(TARGET_DIR)/ . | gzip -9n >
> $(BIN_DIR)/$(IMG_PREFIX)$(if $(PROFILE_SANITIZED),-
> $(PROFILE_SANITIZED))-rootfs.tar.gz
> + -C $(TARGET_DIR)/ . | gzip -9n >
> $(BIN_DIR)/$(IMG_PREFIX)$(if
> +$(PROFILE_SANITIZED),$(PROFILE_SANITIZED))-rootfs.tar.gz
>endef
>  endif
> 
> @@ -385,7 +386,7 @@ define Device/Init
> 
>IMAGES :=
>ARTIFACTS :=
> -  IMAGE_PREFIX := $(IMG_PREFIX)-$(1)

Re: [OpenWrt-Devel] [PATCH][RFC] build: disable target name in image filename

2020-06-14 Thread Daniel Golle
On Sat, Jun 13, 2020 at 11:33:31PM -1000, Paul Spooren wrote:
> The target/subtarget information in image filenames is barely of any use
> for developers or end users.
> 
> A developer reads the profile name and the target is either obvious due
> to previous work or `cd targets/ && grep -r ` tells the target
> within 3ms. If no buildroot is available `cat  | tail -c 200`
> allows a look at the attached metadata which includes the
> target/subtarget.
> 
> For users the information is entirely useless and maybe even harmful.
> Target names like `cortexa9` could easily be mistaken as an actual
> device name while the only relevant information would be
> `linksys_wrt3200acm`. Images are more realistically downloaded via a
> Wiki entry or a firmware wizard.
> 
> This commit therefore adds the new image option called
> CONFIG_TARGET_FILENAMES to make the target/subtarget filename part
> optional. It is disabled by default.
> 
> As the profile name `generic` appears multiple times in the x86 target
> as well as in oceton and ath25, the proposed patch on GitHub should be
> merged first:
> * treewide: use unique profile names #3082
> https://github.com/openwrt/openwrt/pull/3082
> 
> Newly produced files would look like the following:
> * openwrt-linksys_wrt3200acm-initramfs-kernel.bin
> * openwrt-linksys_wrt3200acm.manifest
> * openwrt-linksys_wrt3200acm-squashfs-factory.img
> * openwrt-linksys_wrt3200acm-squashfs-sysupgrade.bin
> 
> Signed-off-by: Paul Spooren 


Once all the requirements (unique and informative image names) are in
place to make this work:
Acked-by: Daniel Golle 

> ---
> It's been a while since I made a controversial patch[0] so it feels
> about time.
> 
> [0]: https://github.com/openwrt/openwrt/pull/2107
> 
>  include/image.mk   | 9 +
>  package/base-files/image-config.in | 9 +
>  2 files changed, 14 insertions(+), 4 deletions(-)
> 
> diff --git a/include/image.mk b/include/image.mk
> index 984b64fb9c..c6fc467c9e 100644
> --- a/include/image.mk
> +++ b/include/image.mk
> @@ -37,11 +37,12 @@ KDIR=$(KERNEL_BUILD_DIR)
>  KDIR_TMP=$(KDIR)/tmp
>  DTS_DIR:=$(LINUX_DIR)/arch/$(LINUX_KARCH)/boot/dts
>  
> +IMG_PREFIX_TARGET:=$(if $(CONFIG_TARGET_FILENAMES),$(BOARD)$(if 
> $(SUBTARGET),-$(SUBTARGET))-)
>  IMG_PREFIX_EXTRA:=$(if $(EXTRA_IMAGE_NAME),$(call 
> sanitize,$(EXTRA_IMAGE_NAME))-)
>  IMG_PREFIX_VERNUM:=$(if $(CONFIG_VERSION_FILENAMES),$(call 
> sanitize,$(VERSION_NUMBER))-)
>  IMG_PREFIX_VERCODE:=$(if $(CONFIG_VERSION_CODE_FILENAMES),$(call 
> sanitize,$(VERSION_CODE))-)
>  
> -IMG_PREFIX:=$(VERSION_DIST_SANITIZED)-$(IMG_PREFIX_VERNUM)$(IMG_PREFIX_VERCODE)$(IMG_PREFIX_EXTRA)$(BOARD)$(if
>  $(SUBTARGET),-$(SUBTARGET))
> +IMG_PREFIX:=$(VERSION_DIST_SANITIZED)-$(IMG_PREFIX_VERNUM)$(IMG_PREFIX_VERCODE)$(IMG_PREFIX_EXTRA)$(IMG_PREFIX_TARGET)
>  IMG_ROOTFS:=$(IMG_PREFIX)-rootfs
>  IMG_COMBINED:=$(IMG_PREFIX)-combined
>  IMG_PART_SIGNATURE:=$(shell echo $(SOURCE_DATE_EPOCH)$(LINUX_VERMAGIC) | 
> mkhash md5 | cut -b1-8)
> @@ -293,7 +294,7 @@ endef
>  
>  define Image/Manifest
>   $(call opkg,$(TARGET_DIR_ORIG)) list-installed > \
> - $(BIN_DIR)/$(IMG_PREFIX)$(if 
> $(PROFILE_SANITIZED),-$(PROFILE_SANITIZED)).manifest
> + $(BIN_DIR)/$(IMG_PREFIX)$(if 
> $(PROFILE_SANITIZED),$(PROFILE_SANITIZED)).manifest
>  endef
>  
>  define Image/gzip-ext4-padded-squashfs
> @@ -317,7 +318,7 @@ ifdef CONFIG_TARGET_ROOTFS_TARGZ
>define Image/Build/targz
>   $(TAR) -cp --numeric-owner --owner=0 --group=0 --mode=a-s --sort=name \
>   $(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \
> - -C $(TARGET_DIR)/ . | gzip -9n > $(BIN_DIR)/$(IMG_PREFIX)$(if 
> $(PROFILE_SANITIZED),-$(PROFILE_SANITIZED))-rootfs.tar.gz
> + -C $(TARGET_DIR)/ . | gzip -9n > $(BIN_DIR)/$(IMG_PREFIX)$(if 
> $(PROFILE_SANITIZED),$(PROFILE_SANITIZED))-rootfs.tar.gz
>endef
>  endif
>  
> @@ -385,7 +386,7 @@ define Device/Init
>  
>IMAGES :=
>ARTIFACTS :=
> -  IMAGE_PREFIX := $(IMG_PREFIX)-$(1)
> +  IMAGE_PREFIX := $(IMG_PREFIX)$(1)
>IMAGE_NAME = $$(IMAGE_PREFIX)-$$(1)-$$(2)
>IMAGE_SIZE :=
>KERNEL_PREFIX = $$(IMAGE_PREFIX)
> diff --git a/package/base-files/image-config.in 
> b/package/base-files/image-config.in
> index 3432db525a..5a70d51a7a 100644
> --- a/package/base-files/image-config.in
> +++ b/package/base-files/image-config.in
> @@ -264,6 +264,15 @@ if VERSIONOPT
>   Enable this to include the revision identifier or the 
> configured
>   version code into the firmware image, SDK- and Image 
> Builder archive
>   file names
> +
> + config TARGET_FILENAMES
> + bool
> + prompt "Target and subtarget in filenames"
> + default n
> + help
> + Enable this to include the target (and subtarget) in
> + firmware image, SDK- and Image Builder archive file 
> names
> +
>  endif
>