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device: fix _Generic() types for _NM_DEVICE_CAST() macro

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clang (x86_64, 3.4.2-9.el7) fails:

    ../src/devices/nm-device-6lowpan.c:161:9: error: controlling expression type 'typeof (*self) *const' (aka 'struct _NMDevice6Lowpan *const') not compatible with any generic association type
            _LOGW(LOGD_DEVICE, "could not get 6lowpan properties");
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    ../shared/nm-glib-aux/nm-logging-fwd.h:165:20: note: expanded from macro '_LOGW'
    #define _LOGW(...) _NMLOG(_LOGL_WARN, __VA_ARGS__)
                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    ../src/devices/nm-device-logging.h:32:81: note: expanded from macro '_NMLOG'
                const char *const    _ifname = _nm_device_get_iface(_NM_DEVICE_CAST(_self)); \
                                                                                    ^~~~~
    ../src/devices/nm-device-logging.h:17:19: note: expanded from macro '_NM_DEVICE_CAST'
            _Generic((self), _NMLOG_DEVICE_TYPE *        \
                      ^

Fixes: cc35dc3bdf ('device: improve "nm-device-logging.h" to support a self pointer of NMDevice type')
This commit is contained in:
Thomas Haller 2020-11-10 19:39:50 +01:00
parent b96d48efca
commit 71eeec8c78
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GPG key ID: 29C2366E4DFC5728
1 changed files with 6 additions and 4 deletions
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10
src/devices/nm-device-logging.h
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@ -13,10 +13,12 @@
#elif !defined(_NMLOG_DEVICE_TYPE)
#define _NM_DEVICE_CAST(self) _NM_ENSURE_TYPE(NMDevice *, self)
#else
#define _NM_DEVICE_CAST(self) \
_Generic((self), _NMLOG_DEVICE_TYPE * \
: ((NMDevice *) (self)), NMDevice * \
: ((NMDevice *) (self)))
#define _NM_DEVICE_CAST(self) \
_Generic((self), \
_NMLOG_DEVICE_TYPE * : ((NMDevice *) (self)), \
_NMLOG_DEVICE_TYPE * const: ((NMDevice *) (self)), \
NMDevice * : ((NMDevice *) (self)), \
NMDevice * const: ((NMDevice *) (self)))
#endif
#undef _NMLOG_ENABLED