No caller use its return value as msi capability offset, in order to make its return behaviour consistent with msix_init().
cc: Michael S. Tsirkin <m...@redhat.com> cc: Paolo Bonzini <pbonz...@redhat.com> cc: Hannes Reinecke <h...@suse.de> cc: Markus Armbruster <arm...@redhat.com> cc: Marcel Apfelbaum <mar...@redhat.com> Signed-off-by: Cao jin <caoj.f...@cn.fujitsu.com> --- hw/pci/msi.c | 6 +++--- hw/scsi/megasas.c | 2 +- hw/scsi/mptsas.c | 2 +- 3 files changed, 5 insertions(+), 5 deletions(-) diff --git a/hw/pci/msi.c b/hw/pci/msi.c index aa6cf49..70464bf 100644 --- a/hw/pci/msi.c +++ b/hw/pci/msi.c @@ -173,8 +173,7 @@ bool msi_enabled(const PCIDevice *dev) * If @msi64bit, make the device capable of sending a 64-bit message * address. * If @msi_per_vector_mask, make the device support per-vector masking. - * Return the offset of capability MSI in config space on success, - * return -errno on error. + * Return 0 on success, return -errno on error. * * -ENOTSUP means lacking msi support for a msi-capable platform. * -EINVAL means capability overlap, happens when @offset is non-zero, @@ -236,7 +235,8 @@ int msi_init(struct PCIDevice *dev, uint8_t offset, pci_set_long(dev->wmask + msi_mask_off(dev, msi64bit), 0xffffffff >> (PCI_MSI_VECTORS_MAX - nr_vectors)); } - return config_offset; + + return 0; } void msi_uninit(struct PCIDevice *dev) diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c index 635be13..26119bf 100644 --- a/hw/scsi/megasas.c +++ b/hw/scsi/megasas.c @@ -2346,7 +2346,7 @@ static void megasas_scsi_realize(PCIDevice *dev, Error **errp) "megasas-queue", 0x40000); if (megasas_use_msi(s) && - msi_init(dev, 0x50, 1, true, false) < 0) { + msi_init(dev, 0x50, 1, true, false)) { s->msi = ON_OFF_AUTO_OFF; } if (megasas_use_msix(s) && diff --git a/hw/scsi/mptsas.c b/hw/scsi/mptsas.c index 4ff4d06..d4773e2 100644 --- a/hw/scsi/mptsas.c +++ b/hw/scsi/mptsas.c @@ -1286,7 +1286,7 @@ static void mptsas_scsi_realize(PCIDevice *dev, Error **errp) "mptsas-diag", 0x10000); if (s->msi != ON_OFF_AUTO_OFF && - msi_init(dev, 0, 1, true, false) >= 0) { + msi_init(dev, 0, 1, true, false) > 0) { /* TODO check for errors */ s->msi_in_use = true; } -- 2.1.0