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[media] cec-notifier.h: handle unreachable CONFIG_CEC_CORE
Fix a link error in this specific combination of config options: CONFIG_MEDIA_CEC_SUPPORT=y CONFIG_CEC_CORE=m CONFIG_MEDIA_CEC_NOTIFIER=y CONFIG_VIDEO_STI_HDMI_CEC=m CONFIG_DRM_STI=y drivers/gpu/drm/sti/sti_hdmi.o: In function `sti_hdmi_remove': sti_hdmi.c:(.text.sti_hdmi_remove+0x10): undefined reference to `cec_notifier_set_phys_addr' sti_hdmi.c:(.text.sti_hdmi_remove+0x34): undefined reference to `cec_notifier_put' drivers/gpu/drm/sti/sti_hdmi.o: In function `sti_hdmi_connector_get_modes': sti_hdmi.c:(.text.sti_hdmi_connector_get_modes+0x4a): undefined reference to `cec_notifier_set_phys_addr_from_edid' drivers/gpu/drm/sti/sti_hdmi.o: In function `sti_hdmi_probe': sti_hdmi.c:(.text.sti_hdmi_probe+0x204): undefined reference to `cec_notifier_get' drivers/gpu/drm/sti/sti_hdmi.o: In function `sti_hdmi_connector_detect': sti_hdmi.c:(.text.sti_hdmi_connector_detect+0x36): undefined reference to `cec_notifier_set_phys_addr' drivers/gpu/drm/sti/sti_hdmi.o: In function `sti_hdmi_disable': sti_hdmi.c:(.text.sti_hdmi_disable+0xc0): undefined reference to `cec_notifier_set_phys_addr' The version below seems to work, though I don't particularly like the IS_REACHABLE() addition since that can be confusing to users. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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@ -29,7 +29,7 @@ struct edid;
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struct cec_adapter;
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struct cec_notifier;
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#ifdef CONFIG_MEDIA_CEC_NOTIFIER
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#if IS_REACHABLE(CONFIG_CEC_CORE) && IS_ENABLED(CONFIG_MEDIA_CEC_NOTIFIER)
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/**
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* cec_notifier_get - find or create a new cec_notifier for the given device.
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@ -106,6 +106,16 @@ static inline void cec_notifier_set_phys_addr_from_edid(struct cec_notifier *n,
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{
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}
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static inline void cec_notifier_register(struct cec_notifier *n,
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struct cec_adapter *adap,
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void (*callback)(struct cec_adapter *adap, u16 pa))
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{
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}
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static inline void cec_notifier_unregister(struct cec_notifier *n)
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{
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}
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#endif
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#endif
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