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scst/include/backport.h: Add dummy pcie_capability_read_*() backports

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git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8142 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2019-04-03 00:48:15 +00:00
parent 62ffb82e11
commit a1ae8be4d7
1 changed files with 24 additions and 0 deletions
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24
scst/include/backport.h
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@@ -941,6 +941,30 @@ struct nvmefc_fcp_req {
} __aligned(sizeof(u64)); /* alignment for other things alloc'd with */
#endif
/* <linux/pci.h> */
#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 7, 0) && !defined(RHEL_MAJOR)
/*
* See also commit 8c0d3a02c130 ("PCI: Add accessors for PCI Express
* Capability") # v3.7.
*/
static inline int pcie_capability_read_word(struct pci_dev *dev, int pos,
u16 *val)
{
WARN_ON_ONCE(true);
*val = 0;
return -ENOTSUPP;
}
static inline int pcie_capability_read_dword(struct pci_dev *dev, int pos,
u32 *val)
{
WARN_ON_ONCE(true);
*val = 0;
return -ENOTSUPP;
}
#endif
/* <linux/preempt.h> */
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 37)