On Thu, Mar 29, 2018 at 04:05:43PM -0300, Thiago Jung Bauermann wrote:
> kexec_file_load() on powerpc doesn't support kdump kernels yet, so it
> returns -ENOTSUPP in that case.
>
> I've recently learned that this errno is internal to the kernel and isn't
> supposed to be exposed to userspace. Therefore, change to -EOPNOTSUPP which
> is defined in an uapi header.
>
> This does indeed make kexec-tools happier. Before the patch, on ppc64le:
>
> # ~bauermann/src/kexec-tools/build/sbin/kexec -s -p /boot/vmlinuz
> kexec_file_load failed: Unknown error 524
>
> After the patch:
>
> # ~bauermann/src/kexec-tools/build/sbin/kexec -s -p /boot/vmlinuz
> kexec_file_load failed: Operation not supported
>
> Fixes: a0458284f062 ("powerpc: Add support code for kexec_file_load()")
> Reported-by: Dave Young <dyoung@xxxxxxxxxx>
> Signed-off-by: Thiago Jung Bauermann <bauerman@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Simon Horman <horms@xxxxxxxxxxxx>
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