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usb: ehci: mark unlink_empty_async_suspended() as __maybe_unused
Patch 4d053fdac3
"usb: ehci: unlink_empty_async_suspended() only used
with CONFIG_PM" tried to hide the unlink_empty_async_suspended function
inside of an #ifdef to work around an unused function warning.
Unfortunately that had the effect of introducing a new warning:
drivers/usb/host/ehci-q.c:1297:13: warning: 'unlink_empty_async_suspended'
declared 'static' but never defined [-Wunused-function]
While we could add another #ifdef around the function declaration to avoid
this, a nicer solution is to mark it as __maybe_unused, which will let
gcc silently drop the function definition when it is not needed.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
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@ -1293,9 +1293,8 @@ static void unlink_empty_async(struct ehci_hcd *ehci)
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}
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}
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#ifdef CONFIG_PM
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/* The root hub is suspended; unlink all the async QHs */
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static void unlink_empty_async_suspended(struct ehci_hcd *ehci)
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static void __maybe_unused unlink_empty_async_suspended(struct ehci_hcd *ehci)
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{
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struct ehci_qh *qh;
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@ -1306,7 +1305,6 @@ static void unlink_empty_async_suspended(struct ehci_hcd *ehci)
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}
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start_iaa_cycle(ehci);
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}
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#endif
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/* makes sure the async qh will become idle */
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/* caller must own ehci->lock */
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