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From: Randy Dunlap on 20 Mar 2010 22:00
On 03/20/10 16:06, Ben Hutchings wrote:
> This taint flag will initially be used when warning about invalid ACPI
> DMAR tables.
>
> Signed-off-by: Ben Hutchings <ben(a)decadent.org.uk>
> ---
> include/linux/kernel.h | 1 +
> kernel/panic.c | 2 ++
> 2 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/include/linux/kernel.h b/include/linux/kernel.h
> index eaf7221..ab8072b 100644
> --- a/include/linux/kernel.h
> +++ b/include/linux/kernel.h
> @@ -344,6 +344,7 @@ extern enum system_states {
> #define TAINT_OVERRIDDEN_ACPI_TABLE 8
> #define TAINT_WARN 9
> #define TAINT_CRAP 10
> +#define TAINT_FIRMWARE_WORKAROUND 11
>
> extern void dump_stack(void) __cold;
>
> diff --git a/kernel/panic.c b/kernel/panic.c
> index 8b821bc..e9fa224 100644
> --- a/kernel/panic.c
> +++ b/kernel/panic.c
> @@ -178,6 +178,7 @@ static const struct tnt tnts[] = {
> { TAINT_OVERRIDDEN_ACPI_TABLE, 'A', ' ' },
> { TAINT_WARN, 'W', ' ' },
> { TAINT_CRAP, 'C', ' ' },
> + { TAINT_FIRMWARE_WORKAROUND, 'I', ' ' },
> };
>
> /**
> @@ -194,6 +195,7 @@ static const struct tnt tnts[] = {
> * 'A' - ACPI table overridden.
> * 'W' - Taint on warning.
> * 'C' - modules from drivers/staging are loaded.
> + * 'I' - Firmware workaround was required.
> *
> * The string is overwritten by the next call to print_tainted().
> */

Please update Documentation/oops-tracing.txt also.

thanks,
--
~Randy
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