[RFC v4 PATCH 3/5] powrepc/crash hp: update kimage_arch struct

[Sourabh Jain <sourabhjain@linux.ibm.com>]

On 14/04/22 22:05, Laurent Dufour wrote:
> On 11/04/2022, 10:43:55, Sourabh Jain wrote:
>> Two new members fdt_index and fdt_index_valid are added in kimage_arch
>> struct to track the FDT kexec segment. These new members of kimage_arch
>> struct will help the crash hotplug handler to easily access the FDT
>> segment from the kexec segment array. Otherwise, we have to loop through
>> all kexec segments to find the FDT segments.
>>
>> Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
>> ---
>>   arch/powerpc/include/asm/kexec.h | 2 ++
>>   1 file changed, 2 insertions(+)
>>
>> diff --git a/arch/powerpc/include/asm/kexec.h b/arch/powerpc/include/asm/kexec.h
>> index e1288826e22e..19c2cab6a880 100644
>> --- a/arch/powerpc/include/asm/kexec.h
>> +++ b/arch/powerpc/include/asm/kexec.h
>> @@ -104,6 +104,8 @@ extern const struct kexec_file_ops kexec_elf64_ops;
>>   struct kimage_arch {
>>   	struct crash_mem *exclude_ranges;
>>   
> #ifdef CONFIG_CRASH_HOTPLUG ?
>> +	int fdt_index;
>> +	bool fdt_index_valid;
> #endif
>
> It seems that this is only used when CONFIG_CRASH_HOTPLUG is defined, isn't it?

Yes it should be kept under CONFIG_CRASH_HOTPLUG config.

Thanks,
Sourabh Jain

>
>>   	unsigned long backup_start;
>>   	void *backup_buf;
>>   	void *fdt;