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Commit 20e32676 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe
Browse files

xen: provide a prototype for xen_biovec_phys_mergeable in xen.h 



Having multiple externs in arch headers is not a good way to provide
a common interface.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent cd11b1d3

arch/arm/include/asm/io.h

+0 −3
Original line number Diff line number Diff line
@@ -459,9 +459,6 @@ extern void pci_iounmap(struct pci_dev *dev, void __iomem *addr); 


#include <asm-generic/io.h>



struct bio_vec;

extern bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,

				      const struct bio_vec *vec2);

#define ARCH_BIOVEC_PHYS_MERGEABLE(vec1, vec2)				\

	 (!xen_domain() || xen_biovec_phys_mergeable(vec1, vec2))

arch/arm64/include/asm/io.h

+0 −3
Original line number Diff line number Diff line
@@ -205,9 +205,6 @@ extern int valid_mmap_phys_addr_range(unsigned long pfn, size_t size); 


extern int devmem_is_allowed(unsigned long pfn);



struct bio_vec;

extern bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,

				      const struct bio_vec *vec2);

#define ARCH_BIOVEC_PHYS_MERGEABLE(vec1, vec2)				\

	 (!xen_domain() || xen_biovec_phys_mergeable(vec1, vec2))

arch/x86/include/asm/io.h

+0 −4
Original line number Diff line number Diff line
@@ -371,10 +371,6 @@ extern bool is_early_ioremap_ptep(pte_t *ptep); 


#ifdef CONFIG_XEN

#include <xen/xen.h>

struct bio_vec;



extern bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,

				      const struct bio_vec *vec2);



#define ARCH_BIOVEC_PHYS_MERGEABLE(vec1, vec2)				\

	 (!xen_domain() || xen_biovec_phys_mergeable(vec1, vec2))

include/xen/xen.h

+4 −0
Original line number Diff line number Diff line
@@ -39,4 +39,8 @@ extern uint32_t xen_start_flags; 
#define xen_initial_domain()	(0)

#endif	/* CONFIG_XEN_DOM0 */



struct bio_vec;

bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,

		const struct bio_vec *vec2);



#endif	/* _XEN_XEN_H */