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lib: os: disable PRINTK_SYNC while using EFI console as log backend 

There is a spinlock used in the EFI console code for printing
one line string. It already made the log output being in order
under multi-cores, so it doesn't need a printk sync spinlock
again. Disable it while using EFI console as a log backend.

Fixes #47512.

Signed-off-by: Enjia Mai <enjia.mai@intel.com>
This commit is contained in:
Enjia Mai 2022-08-10 16:47:47 +08:00 committed by Carles Cufí
parent 414d98f767
commit e696de1f31
1 changed files with 1 additions and 1 deletions
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lib/os/Kconfig
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@ -23,7 +23,7 @@ config BASE64
config PRINTK_SYNC
bool "Serialize printk() calls"
default y if SMP && MP_NUM_CPUS > 1
default y if SMP && MP_NUM_CPUS > 1 && !(EFI_CONSOLE && LOG)
help
When true, a spinlock will be taken around the output from a
single printk() call, preventing the output data from