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Re: [Xen-devel] [PATCH v6] xen/grant-table: Avoid m2p_override during mapping
On 02/02/14 11:29, Julien Grall wrote:
Hello,
This patch is breaking Linux compilation on ARM:
drivers/xen/grant-table.c: In function ‘__gnttab_map_refs’:
drivers/xen/grant-table.c:989:3: error: implicit declaration of function
‘FOREIGN_FRAME’ [-Werror=implicit-function-declaration]
if (unlikely(!set_phys_to_machine(pfn, FOREIGN_FRAME(mfn)))) {
^
drivers/xen/grant-table.c: In function ‘__gnttab_unmap_refs’:
drivers/xen/grant-table.c:1054:3: error: implicit declaration of function
‘get_phys_to_machine’ [-Werror=implicit-function-declaration]
mfn = get_phys_to_machine(pfn);
^
drivers/xen/grant-table.c:1055:43: error: ‘FOREIGN_FRAME_BIT’ undeclared (first
use in this function)
if (mfn == INVALID_P2M_ENTRY || !(mfn & FOREIGN_FRAME_BIT)) {
^
drivers/xen/grant-table.c:1055:43: note: each undeclared identifier is reported
only once for each function it appears in
drivers/xen/grant-table.c:1068:9: error: too many arguments to function
‘m2p_remove_override’
mfn);
^
In file included from include/xen/page.h:4:0,
from drivers/xen/grant-table.c:48:
/local/home/julien/works/midway/linux/arch/arm/include/asm/xen/page.h:106:19:
note: declared here
static inline int m2p_remove_override(struct page *page, bool clear_pte)
^
cc1: some warnings being treated as errors
Hi,
That's bad indeed. I think the best solution is to put those parts
behind an #ifdef x86. The ones moved from x86/p2m.c to grant-table.c.
David, Stefano, what do you think?
Zoli
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