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usb/xhci: fix compilation warning when !CONFIG_PCI && !CONFIG_PM

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When CONFIG_PCI and CONFIG_PM are not selected, xhci.c gets this
warning:
drivers/usb/host/xhci.c:409:13: warning: ‘xhci_msix_sync_irqs’ defined
but not used [-Wunused-function]

Instead of creating nested #ifdefs, this patch fixes it by defining the
xHCI PCI stubs as inline.

This warning has been in since 3.2 kernel and was
caused by commit 421aa841a1
"usb/xhci: hide MSI code behind PCI bars", but wasn't noticed
until 3.13 when a configuration with these options was tried

Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Cc: stable@vger.kernel.org # 3.2
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
David Cohen 2014-04-25 19:20:16 +03:00 committed by Greg Kroah-Hartman
parent 6db249ebef
commit 01bb59ebff
1 changed files with 3 additions and 3 deletions
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6
drivers/usb/host/xhci.c
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@ -408,16 +408,16 @@ static int xhci_try_enable_msi(struct usb_hcd *hcd)
#else #else
static int xhci_try_enable_msi(struct usb_hcd *hcd) static inline int xhci_try_enable_msi(struct usb_hcd *hcd)
{ {
return 0; return 0;
} }
static void xhci_cleanup_msix(struct xhci_hcd *xhci) static inline void xhci_cleanup_msix(struct xhci_hcd *xhci)
{ {
} }
static void xhci_msix_sync_irqs(struct xhci_hcd *xhci) static inline void xhci_msix_sync_irqs(struct xhci_hcd *xhci)
{ {
} }