#ifndef _ASM_ARM_XEN_PAGE_COHERENT_H #define _ASM_ARM_XEN_PAGE_COHERENT_H #include #include void __xen_dma_map_page(struct device *hwdev, struct page *page, dma_addr_t dev_addr, unsigned long offset, size_t size, enum dma_data_direction dir, unsigned long attrs); void __xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle, size_t size, enum dma_data_direction dir, unsigned long attrs); void __xen_dma_sync_single_for_cpu(struct device *hwdev, dma_addr_t handle, size_t size, enum dma_data_direction dir); void __xen_dma_sync_single_for_device(struct device *hwdev, dma_addr_t handle, size_t size, enum dma_data_direction dir); static inline void *xen_alloc_coherent_pages(struct device *hwdev, size_t size, dma_addr_t *dma_handle, gfp_t flags, unsigned long attrs) { return __generic_dma_ops(hwdev)->alloc(hwdev, size, dma_handle, flags, attrs); } static inline void xen_free_coherent_pages(struct device *hwdev, size_t size, void *cpu_addr, dma_addr_t dma_handle, unsigned long attrs) { __generic_dma_ops(hwdev)->free(hwdev, size, cpu_addr, dma_handle, attrs); } static inline void xen_dma_map_page(struct device *hwdev, struct page *page, dma_addr_t dev_addr, unsigned long offset, size_t size, enum dma_data_direction dir, unsigned long attrs) { unsigned long page_pfn = page_to_xen_pfn(page); unsigned long dev_pfn = XEN_PFN_DOWN(dev_addr); unsigned long compound_pages = (1<map_page(hwdev, page, offset, size, dir, attrs); else __xen_dma_map_page(hwdev, page, dev_addr, offset, size, dir, attrs); } static inline void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle, size_t size, enum dma_data_direction dir, unsigned long attrs) { unsigned long pfn = PFN_DOWN(handle); /* * Dom0 is mapped 1:1, while the Linux page can be spanned accross * multiple Xen page, it's not possible to have a mix of local and * foreign Xen page. Dom0 is mapped 1:1, so calling pfn_valid on a * foreign mfn will always return false. If the page is local we can * safely call the native dma_ops function, otherwise we call the xen * specific function. */ if (pfn_valid(pfn)) { if (__generic_dma_ops(hwdev)->unmap_page) __generic_dma_ops(hwdev)->unmap_page(hwdev, handle, size, dir, attrs); } else __xen_dma_unmap_page(hwdev, handle, size, dir, attrs); } static inline void xen_dma_sync_single_for_cpu(struct device *hwdev, dma_addr_t handle, size_t size, enum dma_data_direction dir) { unsigned long pfn = PFN_DOWN(handle); if (pfn_valid(pfn)) { if (__generic_dma_ops(hwdev)->sync_single_for_cpu) __generic_dma_ops(hwdev)->sync_single_for_cpu(hwdev, handle, size, dir); } else __xen_dma_sync_single_for_cpu(hwdev, handle, size, dir); } static inline void xen_dma_sync_single_for_device(struct device *hwdev, dma_addr_t handle, size_t size, enum dma_data_direction dir) { unsigned long pfn = PFN_DOWN(handle); if (pfn_valid(pfn)) { if (__generic_dma_ops(hwdev)->sync_single_for_device) __generic_dma_ops(hwdev)->sync_single_for_device(hwdev, handle, size, dir); } else __xen_dma_sync_single_for_device(hwdev, handle, size, dir); } #endif /* _ASM_ARM_XEN_PAGE_COHERENT_H */ 'context' onchange='this.form.submit();'>space:mode:
authorJack Morgenstein <jackm@dev.mellanox.co.il>2017-01-15 20:15:00 +0200
committerDoug Ledford <dledford@redhat.com>2017-01-27 14:29:04 -0500
commitb4cfe3971f6eab542dd7ecc398bfa1aeec889934 (patch)
treec7ad49d05da0535170c8e7710cd44ae1cecc271f /include/net/vsock_addr.h
parent2d4b21e0a2913612274a69a3ba1bfee4cffc6e77 (diff)
RDMA/cma: Fix unknown symbol when CONFIG_IPV6 is not enabled
If IPV6 has not been enabled in the underlying kernel, we must avoid calling IPV6 procedures in rdma_cm.ko. This requires using "IS_ENABLED(CONFIG_IPV6)" in "if" statements surrounding any code which calls external IPV6 procedures. In the instance fixed here, procedure cma_bind_addr() called ipv6_addr_type() -- which resulted in calling external procedure __ipv6_addr_type(). Fixes: 6c26a77124ff ("RDMA/cma: fix IPv6 address resolution") Cc: <stable@vger.kernel.org> # v4.2+ Cc: Spencer Baugh <sbaugh@catern.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Reviewed-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include/net/vsock_addr.h')