From: Richard Henderson <richard.hender...@linaro.org> All uses of device_class_set_props() are now using arrays. Validate this compile-time in the device_class_set_props macro and call device_class_set_props_n using the known size of the array.
Signed-off-by: Richard Henderson <richard.hender...@linaro.org> Tested-by: Lei Yang <leiy...@redhat.com> Link: https://lore.kernel.org/r/20241218134251.4724-19-richard.hender...@linaro.org Signed-off-by: Paolo Bonzini <pbonz...@redhat.com> --- include/hw/qdev-core.h | 16 ++++++---------- hw/core/qdev-properties.c | 16 ---------------- 2 files changed, 6 insertions(+), 26 deletions(-) diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h index e9b4891f55a..afa667b68f3 100644 --- a/include/hw/qdev-core.h +++ b/include/hw/qdev-core.h @@ -948,22 +948,18 @@ char *qdev_get_own_fw_dev_path_from_handler(BusState *bus, DeviceState *dev); * To modify an inherited property you need to use???? * * Validate that @props has at least one Property plus the terminator. + * Validate that @props is an array, not a pointer, via ARRAY_SIZE. * Validate that the array is terminated at compile-time (with -O2), * which requires the array to be const. */ -void device_class_set_props(DeviceClass *dc, const Property *props); - #define device_class_set_props(dc, props) \ do { \ - QEMU_BUILD_BUG_ON(sizeof(props) != sizeof(const Property *) && \ - sizeof(props) < 2 * sizeof(Property)); \ - if (sizeof(props) != sizeof(const Property *)) { \ - size_t props_count_ = sizeof(props) / sizeof(Property) - 1; \ - if ((props)[props_count_].name != NULL) { \ - qemu_build_not_reached(); \ - } \ + QEMU_BUILD_BUG_ON(sizeof(props) == 0); \ + size_t props_count_ = ARRAY_SIZE(props) - 1; \ + if ((props)[props_count_].name != NULL) { \ + qemu_build_not_reached(); \ } \ - (device_class_set_props)((dc), (props)); \ + device_class_set_props_n((dc), (props), props_count_); \ } while (0) /** diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c index 31e3072b559..a3d49e20202 100644 --- a/hw/core/qdev-properties.c +++ b/hw/core/qdev-properties.c @@ -1058,22 +1058,6 @@ static void qdev_class_add_legacy_property(DeviceClass *dc, const Property *prop NULL, NULL, (Property *)prop); } -void (device_class_set_props)(DeviceClass *dc, const Property *props) -{ - const Property *prop; - size_t n; - - dc->props_ = props; - for (prop = props, n = 0; prop && prop->name; prop++, n++) { - qdev_class_add_legacy_property(dc, prop); - qdev_class_add_property(dc, prop->name, prop); - } - - /* We used a hole in DeviceClass because that's still a lot. */ - assert(n <= UINT16_MAX); - dc->props_count_ = n; -} - void device_class_set_props_n(DeviceClass *dc, const Property *props, size_t n) { /* We used a hole in DeviceClass because that's still a lot. */ -- 2.47.1
