[PATCH] ramips: switch to kernel 5.10

[Stijn Segers]

Hi Adrian,

Op zondag 26 september 2021 om 23u45 schreef Adrian Schmutzler 
<mail at adrianschmutzler.de>:
> Hi,
> 
>>  -----Original Message-----
>>  From: openwrt-devel [mailto:openwrt-devel-bounces at lists.openwrt.org]
>>  On Behalf Of Stijn Segers
>>  Sent: Donnerstag, 9. September 2021 14:26
>>  To: openwrt-devel at lists.openwrt.org; Paweł Dembicki
>>  <paweldembicki at gmail.com>; Rui Salvaterra <rsalvaterra at gmail.com>
>>  Cc: OpenWrt Development List <openwrt-devel at lists.openwrt.org>; 
>> Adrian
>>  Schmutzler <freifunk at adrianschmutzler.de>; David Bauer <mail at david-
>>  bauer.net>
>>  Subject: Re: [PATCH] ramips: switch to kernel 5.10
>> 
>>  "Paweł Dembicki" <paweldembicki at gmail.com> schreef op 9 september
>>  2021 13:47:36 CEST:
>>  >czw., 9 wrz 2021 o 10:49 Rui Salvaterra <rsalvaterra at gmail.com> 
>> napisał(a):
>>  >>
>>  >> Tested on mt7621 (Redmi AC2100) and running stable for several 
>> months.
>>  >>
>>  >
>>  >Hi Rui,
>>  >
>>  >Please remember, if this patch will be merged before my PR #4255 
>> [1],
>>  >all mt7620 JBOOT devices will be broken.
>>  >
>>  >The reason is simple: The 5.10 kernel will be > 2MB. My PR will 
>> switch
>>  >all mt7620 JBOOT devices to the OKLI loader.
>> 
>>  Would something similar need to be done for the mt76x8 subtarget?
>> 
>>  I just have a single one of these but I reckon they are equally 
>> flash-starved...
> 
> But if KERNEL_SIZE/IMAGE_SIZE is set properly there, those would just 
> fail to build, so no harm could be done?


That is a valid point. I checked master:

$ grep "define Device" image/mt7620.mk|wc -l
119
$ grep \ KERNEL_SIZE image/mt7620.mk|wc -l
1
$ grep "define Device" image/mt76x8.mk|wc -l
80
$ grep \ KERNEL_SIZE image/mt76x8.mk|wc -l
0

That's not encouraging I guess :-P. And just having IMAGE_SIZE defined 
won't prevent the bootloader from choking on an oversized kernel, or am 
I wrong about that?

Cheers

Stijn

> 
> Best
> 
> Adrian
> 
>> 
>>  Cheers
>> 
>>  Stijn
>> 
>>  >
>>  >Best Regards,
>>  >Pawel
>>  >
>>  >[1] https://github.com/openwrt/openwrt/pull/4255
>>  >
>>  >> Signed-off-by: Rui Salvaterra <rsalvaterra at gmail.com>
>>  >> ---
>>  >>  target/linux/ramips/Makefile | 3 +--
>>  >>  1 file changed, 1 insertion(+), 2 deletions(-)
>>  >>
>>  >> diff --git a/target/linux/ramips/Makefile
>>  >> b/target/linux/ramips/Makefile index d3f2d4b8fc..c9fc1aa58a 
>> 100644
>>  >> --- a/target/linux/ramips/Makefile
>>  >> +++ b/target/linux/ramips/Makefile
>>  >> @@ -10,8 +10,7 @@ BOARDNAME:=MediaTek Ralink MIPS
>>  >>  SUBTARGETS:=mt7620 mt7621 mt76x8 rt288x rt305x rt3883
>>  >> FEATURES:=squashfs gpio
>>  >>
>>  >> -KERNEL_PATCHVER:=5.4
>>  >> -KERNEL_TESTING_PATCHVER:=5.10
>>  >> +KERNEL_PATCHVER:=5.10
>>  >>
>>  >>  define Target/Description
>>  >>         Build firmware images for Ralink RT288x/RT3xxx based 
>> boards.
>>  >> --
>>  >> 2.33.0
>>  >>
>>  >>
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>>  Hi,
>>  --
>>  Sent from my smartphone with K-9 Mail. Please excuse my brevity.
>> 
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