Re: [Xen-devel] [PATCH] kexec: provide crashinfo_maxaddr_bits if !CONFIG_KEXEC

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 19/03/12 14:15, David Vrabel wrote:
> From: David Vrabel <david.vrabel@xxxxxxxxxx>
>
> Fix the build where !CONFIG_KEXEC (e.g., arm) by providing a default
> crashinfo_maxaddr_bits.
>
> Signed-off-by: David Vrabel <david.vrabel@xxxxxxxxxx>

Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

> ---
> Andy,
>
> A cleaner fix might be to replace MEMF_bits(crashinfo_max_addr_bits)
> with a function (e.g., crashinfo_mem_flags()), and provide an inline
> stub when !CONFIG_KEXEC.
>
> David
> ---
>  xen/drivers/char/console.c |    2 --
>  xen/include/xen/kexec.h    |    8 ++++++++
>  2 files changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/xen/drivers/char/console.c b/xen/drivers/char/console.c
> index 5cbbf81..e10bed5 100644
> --- a/xen/drivers/char/console.c
> +++ b/xen/drivers/char/console.c
> @@ -22,9 +22,7 @@
>  #include <xen/guest_access.h>
>  #include <xen/shutdown.h>
>  #include <xen/vga.h>
> -#ifdef CONFIG_KEXEC
>  #include <xen/kexec.h>
> -#endif
>  #include <asm/debugger.h>
>  #include <asm/div64.h>
>  #include <xen/hypercall.h> /* for do_console_io */
> diff --git a/xen/include/xen/kexec.h b/xen/include/xen/kexec.h
> index 8e9c1d3..b3ca8b0 100644
> --- a/xen/include/xen/kexec.h
> +++ b/xen/include/xen/kexec.h
> @@ -1,6 +1,8 @@
>  #ifndef __XEN_KEXEC_H__
>  #define __XEN_KEXEC_H__
>  
> +#ifdef CONFIG_KEXEC
> +
>  #include <public/kexec.h>
>  #include <asm/percpu.h>
>  #include <xen/elfcore.h>
> @@ -76,6 +78,12 @@ void vmcoreinfo_append_str(const char *fmt, ...)
>         vmcoreinfo_append_str("OFFSET(%s.%s)=%lu\n", #name, #field, \
>                               (unsigned long)offsetof(struct name, sub.field))
>  
> +#else /* !CONFIG_KEXEC */
> +
> +#define crashinfo_maxaddr_bits 0
> +
> +#endif
> +
>  #endif /* __XEN_KEXEC_H__ */
>  
>  /*

-- 
Andrew Cooper - Dom0 Kernel Engineer, Citrix XenServer
T: +44 (0)1223 225 900, http://www.citrix.com


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