[PATCH 1/1] kexec-tools: fix build on pre 4.4 kernels

[Kairui Song]

On 2/5/21 4:15 PM, Federico Pellegrin wrote:
> kexec build will fail on older kernels (pre 4.4) as the define
> VIDEO_CAPABILITY_64BIT_BASE was not present at that time.
>
> This patch adds it, as per linux/include/uapi/linux/screen_info.h,
> if not present.
>
> Signed-off-by: Federico Pellegrin <fede at evolware.org>
> ---
>   kexec/arch/i386/x86-linux-setup.c | 4 ++++
>   1 file changed, 4 insertions(+)
>
> diff --git a/kexec/arch/i386/x86-linux-setup.c b/kexec/arch/i386/x86-linux-setup.c
> index 76e1185..ab54a4a 100644
> --- a/kexec/arch/i386/x86-linux-setup.c
> +++ b/kexec/arch/i386/x86-linux-setup.c
> @@ -37,6 +37,10 @@
>   #include "x86-linux-setup.h"
>   #include "../../kexec/kexec-syscall.h"
>   
> +#ifndef VIDEO_CAPABILITY_64BIT_BASE
> +#define VIDEO_CAPABILITY_64BIT_BASE (1 << 1)	/* Frame buffer base is 64-bit */
> +#endif
> +
>   void init_linux_parameters(struct x86_linux_param_header *real_mode)
>   {
>   	/* Fill in the values that are usually provided by the kernel. */

Thanks for the fix, I didn't notice pre 4.4 kernels don't have this defined
when I submitted that patch.

Reviewed-by: Kairui Song <kasong at redhat.com>