From d73415a315471ac0b127ed3fad45c8ec5d711de1 Mon Sep 17 00:00:00 2001 From: Stefan Hajnoczi Date: Wed, 23 Sep 2020 11:56:46 +0100 Subject: qemu/atomic.h: rename atomic_ to qatomic_ MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit clang's C11 atomic_fetch_*() functions only take a C11 atomic type pointer argument. QEMU uses direct types (int, etc) and this causes a compiler error when a QEMU code calls these functions in a source file that also included via a system header file: $ CC=clang CXX=clang++ ./configure ... && make ../util/async.c:79:17: error: address argument to atomic operation must be a pointer to _Atomic type ('unsigned int *' invalid) Avoid using atomic_*() names in QEMU's atomic.h since that namespace is used by . Prefix QEMU's APIs with 'q' so that atomic.h and can co-exist. I checked /usr/include on my machine and searched GitHub for existing "qatomic_" users but there seem to be none. This patch was generated using: $ git grep -h -o '\/tmp/changed_identifiers $ for identifier in $(%q$identifier%g" \ $(git grep -I -l "\<$identifier\>") done I manually fixed line-wrap issues and misaligned rST tables. Signed-off-by: Stefan Hajnoczi Reviewed-by: Philippe Mathieu-Daudé Acked-by: Paolo Bonzini Message-Id: <20200923105646.47864-1-stefanha@redhat.com> --- hw/virtio/virtio-mmio.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'hw/virtio/virtio-mmio.c') diff --git a/hw/virtio/virtio-mmio.c b/hw/virtio/virtio-mmio.c index f12d159..e1b5c3b 100644 --- a/hw/virtio/virtio-mmio.c +++ b/hw/virtio/virtio-mmio.c @@ -179,7 +179,7 @@ static uint64_t virtio_mmio_read(void *opaque, hwaddr offset, unsigned size) } return proxy->vqs[vdev->queue_sel].enabled; case VIRTIO_MMIO_INTERRUPT_STATUS: - return atomic_read(&vdev->isr); + return qatomic_read(&vdev->isr); case VIRTIO_MMIO_STATUS: return vdev->status; case VIRTIO_MMIO_CONFIG_GENERATION: @@ -370,7 +370,7 @@ static void virtio_mmio_write(void *opaque, hwaddr offset, uint64_t value, } break; case VIRTIO_MMIO_INTERRUPT_ACK: - atomic_and(&vdev->isr, ~value); + qatomic_and(&vdev->isr, ~value); virtio_update_irq(vdev); break; case VIRTIO_MMIO_STATUS: @@ -496,7 +496,7 @@ static void virtio_mmio_update_irq(DeviceState *opaque, uint16_t vector) if (!vdev) { return; } - level = (atomic_read(&vdev->isr) != 0); + level = (qatomic_read(&vdev->isr) != 0); trace_virtio_mmio_setting_irq(level); qemu_set_irq(proxy->irq, level); } -- cgit v1.1