Author: dim Date: Fri Aug 17 06:31:30 2018 New Revision: 337959 URL: https://svnweb.freebsd.org/changeset/base/337959
Log: MFC r337322: Fix build of hyperv with base gcc on i386 Summary: Base gcc fails to compile `sys/dev/hyperv/pcib/vmbus_pcib.c` for i386, with the following -Werror warnings: cc1: warnings being treated as errors /usr/src/sys/dev/hyperv/pcib/vmbus_pcib.c: In function 'new_pcichild_device': /usr/src/sys/dev/hyperv/pcib/vmbus_pcib.c:567: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] /usr/src/sys/dev/hyperv/pcib/vmbus_pcib.c: In function 'vmbus_pcib_on_channel_callback': /usr/src/sys/dev/hyperv/pcib/vmbus_pcib.c:940: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /usr/src/sys/dev/hyperv/pcib/vmbus_pcib.c: In function 'hv_pci_protocol_negotiation': /usr/src/sys/dev/hyperv/pcib/vmbus_pcib.c:1012: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] /usr/src/sys/dev/hyperv/pcib/vmbus_pcib.c: In function 'hv_pci_enter_d0': /usr/src/sys/dev/hyperv/pcib/vmbus_pcib.c:1073: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] /usr/src/sys/dev/hyperv/pcib/vmbus_pcib.c: In function 'hv_send_resources_allocated': /usr/src/sys/dev/hyperv/pcib/vmbus_pcib.c:1125: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] /usr/src/sys/dev/hyperv/pcib/vmbus_pcib.c: In function 'vmbus_pcib_map_msi': /usr/src/sys/dev/hyperv/pcib/vmbus_pcib.c:1730: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] This is because on i386, several casts from `uint64_t` to a pointer reduce the value from 64 bit to 32 bit. For gcc, this can be fixed by an intermediate cast to uintptr_t. Note that I am assuming the incoming values will always fit into 32 bit! Differential Revision: https://reviews.freebsd.org/D15753 Modified: stable/10/sys/dev/hyperv/pcib/vmbus_pcib.c Directory Properties: stable/10/ (props changed) Changes in other areas also in this revision: Modified: stable/11/sys/dev/hyperv/pcib/vmbus_pcib.c Directory Properties: stable/11/ (props changed) Modified: stable/10/sys/dev/hyperv/pcib/vmbus_pcib.c ============================================================================== --- stable/10/sys/dev/hyperv/pcib/vmbus_pcib.c Fri Aug 17 04:40:01 2018 (r337958) +++ stable/10/sys/dev/hyperv/pcib/vmbus_pcib.c Fri Aug 17 06:31:30 2018 (r337959) @@ -564,7 +564,7 @@ new_pcichild_device(struct hv_pcibus *hbus, struct pci ret = vmbus_chan_send(hbus->sc->chan, VMBUS_CHANPKT_TYPE_INBAND, VMBUS_CHANPKT_FLAG_RC, - res_req, sizeof(*res_req), (uint64_t)&ctxt.pkt); + res_req, sizeof(*res_req), (uint64_t)(uintptr_t)&ctxt.pkt); if (ret) goto err; @@ -937,7 +937,8 @@ vmbus_pcib_on_channel_callback(struct vmbus_channel *c switch (pkt->cph_type) { case VMBUS_CHANPKT_TYPE_COMP: - comp_packet = (struct pci_packet *)pkt->cph_xactid; + comp_packet = + (struct pci_packet *)(uintptr_t)pkt->cph_xactid; response = (struct pci_response *)pkt; comp_packet->completion_func(comp_packet->compl_ctxt, response, bytes_rxed); @@ -1009,7 +1010,7 @@ hv_pci_protocol_negotiation(struct hv_pcibus *hbus) ret = vmbus_chan_send(hbus->sc->chan, VMBUS_CHANPKT_TYPE_INBAND, VMBUS_CHANPKT_FLAG_RC, version_req, sizeof(*version_req), - (uint64_t)&ctxt.pkt); + (uint64_t)(uintptr_t)&ctxt.pkt); if (ret) goto out; @@ -1070,7 +1071,7 @@ hv_pci_enter_d0(struct hv_pcibus *hbus) ret = vmbus_chan_send(hbus->sc->chan, VMBUS_CHANPKT_TYPE_INBAND, VMBUS_CHANPKT_FLAG_RC, d0_entry, sizeof(*d0_entry), - (uint64_t)&ctxt.pkt); + (uint64_t)(uintptr_t)&ctxt.pkt); if (ret) goto out; @@ -1122,7 +1123,8 @@ hv_send_resources_allocated(struct hv_pcibus *hbus) ret = vmbus_chan_send(hbus->sc->chan, VMBUS_CHANPKT_TYPE_INBAND, VMBUS_CHANPKT_FLAG_RC, - &pkt->message, sizeof(*res_assigned), (uint64_t)pkt); + &pkt->message, sizeof(*res_assigned), + (uint64_t)(uintptr_t)pkt); if (ret) { free_completion(&comp_pkt.host_event); break; @@ -1727,7 +1729,7 @@ vmbus_pcib_map_msi(device_t pcib, device_t child, int ret = vmbus_chan_send(sc->chan, VMBUS_CHANPKT_TYPE_INBAND, VMBUS_CHANPKT_FLAG_RC, int_pkt, sizeof(*int_pkt), - (uint64_t)&ctxt.pkt); + (uint64_t)(uintptr_t)&ctxt.pkt); if (ret) { free_completion(&comp.comp_pkt.host_event); return (ret); _______________________________________________ svn-src-stable-10@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-stable-10 To unsubscribe, send any mail to "svn-src-stable-10-unsubscr...@freebsd.org"
