On Wednesday 27 July 2022 14:58:20 Tom Rini wrote:
On Wed, Jul 27, 2022 at 08:52:01PM +0200, Pali Rohár wrote:
On Wednesday 27 July 2022 14:48:23 Tom Rini wrote:
On Wed, Jul 27, 2022 at 08:34:41PM +0200, Pali Rohár wrote:
On Monday 25 July 2022 17:21:00 Tom Rini wrote:
On Sun, Jul 10, 2022 at 01:42:56PM +0200, Pali Rohár wrote:
CONFIG_PREBOOT just cause putting "preboot=CONFIG_PREBOOT" into env list. Value CONFIG_PREBOOT="run preboot" in defconfig is just nonsense and does not do anything useful (it is infinite recursion). Config file for this board already contains default preboot= env variable with correct value, which has higher priority than CONFIG_PREBOOT and this is reason why nonsense CONFIG_PREBOOT is ignored.
Remove nonsense and unused CONFIG_PREBOOT from nokia_rx51_defconfig file.
Signed-off-by: Pali Rohár pali@kernel.org
Applied to u-boot/master, thanks!
Patch 1/2 is missing.
Sorry if I was unclear enough in the rest of the emails, I'm not applying 1/2. The empty string is fine enough (again, other variables have this issue). Unless I missed something and there's a run-time failure that 1/2 resolves?
The issue is that preboot= variable is defined in ENV array two times. Once in Kconfig and second time in regular environment define.
It is just coincidence that the definition from Kconfig is ignored because currently it is put _after_ the regular preboot= definition. But this is fragile and probably some unrelated change/patch could change this behavior.
We really do not want two preboot= definitions in ENV array and pray that the correct one would be used by U-Boot at runtime.
It's not coincidence, it's down to link order. So it's not going to break anytime soon. And it's not just preboot that's in this situation.
It is not linker order, but rather order in which are specified preprocessor macros...
And what else is in the same situation as preboot? I just do not see other variable which is defined two times.
A more generic approach to deal with this would be appreciated.
-- Tom