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authorLee Jones <lee.jones@linaro.org>2020-07-02 15:46:16 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-07-03 10:18:40 +0200
commit9dac16e448a399b154e4a981be9dc0ad065bdb08 (patch)
tree9416dcb0603545aa8d9c501bc53bb8056ef7cead
parentusb: host: ohci-at91: Demote kerneldoc headers down to basic comment blocks (diff)
downloadlinux-dev-9dac16e448a399b154e4a981be9dc0ad065bdb08.tar.xz
linux-dev-9dac16e448a399b154e4a981be9dc0ad065bdb08.zip
usb: host: ohci: Mark cc_to_error as __maybe_unused
drivers/usb/host/ohci.h in included by a whole much of different sourcefiles. Not all of them make use of cc_to_error. So mark it as __maybe_used to convey that this behaviour is not only acceptable it's expected. Fixes the following kernel build warning(s): In file included from drivers/usb/host/ohci-pci.c:25: drivers/usb/host/ohci.h:165:18: warning: ‘cc_to_error’ defined but not used [-Wunused-const-variable=] 165 | static const int cc_to_error 1 = { | ^~~~~~~~~~~ In file included from drivers/usb/host/ohci-platform.c:32: drivers/usb/host/ohci.h:165:18: warning: ‘cc_to_error’ defined but not used [-Wunused-const-variable=] 165 | static const int cc_to_error 1 = { | ^~~~~~~~~~~ In file included from drivers/usb/host/ohci-exynos.c:20: drivers/usb/host/ohci.h:165:18: warning: ‘cc_to_error’ defined but not used [-Wunused-const-variable=] 165 | static const int cc_to_error 1 = { | ^~~~~~~~~~~ In file included from drivers/usb/host/ohci-spear.c:22: drivers/usb/host/ohci.h:165:18: warning: ‘cc_to_error’ defined but not used [-Wunused-const-variable=] 165 | static const int cc_to_error 1 = { | ^~~~~~~~~~~ In file included from drivers/usb/host/ohci-st.c:26: drivers/usb/host/ohci.h:165:18: warning: ‘cc_to_error’ defined but not used [-Wunused-const-variable=] 165 | static const int cc_to_error 1 = { | ^~~~~~~~~~~ In file included from drivers/usb/host/ohci-at91.c:31: drivers/usb/host/ohci.h:165:18: warning: ‘cc_to_error’ defined but not used [-Wunused-const-variable=] 165 | static const int cc_to_error 1 = { | ^~~~~~~~~~~ In file included from drivers/usb/host/ohci-s3c2410.c:32: drivers/usb/host/ohci.h:165:18: warning: ‘cc_to_error’ defined but not used [-Wunused-const-variable=] 165 | static const int cc_to_error 1 = { | ^~~~~~~~~~~ Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Roman Weissgaerber <weissg@vienna.at> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20200702144625.2533530-22-lee.jones@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/usb/host/ohci.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/host/ohci.h b/drivers/usb/host/ohci.h
index b85a39588f9d..aac6285b37f8 100644
--- a/drivers/usb/host/ohci.h
+++ b/drivers/usb/host/ohci.h
@@ -162,7 +162,7 @@ struct td {
/* map OHCI TD status codes (CC) to errno values */
-static const int cc_to_error [16] = {
+static const int __maybe_unused cc_to_error [16] = {
/* No Error */ 0,
/* CRC Error */ -EILSEQ,
/* Bit Stuff */ -EPROTO,