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GET /api/1.1/patches/2223714/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 2223714,
    "url": "http://patchwork.ozlabs.org/api/1.1/patches/2223714/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260416014928.1279360-5-jamin_lin@aspeedtech.com/",
    "project": {
        "id": 14,
        "url": "http://patchwork.ozlabs.org/api/1.1/projects/14/?format=api",
        "name": "QEMU Development",
        "link_name": "qemu-devel",
        "list_id": "qemu-devel.nongnu.org",
        "list_email": "qemu-devel@nongnu.org",
        "web_url": "",
        "scm_url": "",
        "webscm_url": ""
    },
    "msgid": "<20260416014928.1279360-5-jamin_lin@aspeedtech.com>",
    "date": "2026-04-16T01:49:38",
    "name": "[v3,04/17] hw/usb/hcd-ehci.c: Replace fprintf(stderr, ...) with qemu_log_mask(LOG_GUEST_ERROR)",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "14e07fc5c2c1b423a9a893b2776fd7853a6291e0",
    "submitter": {
        "id": 81768,
        "url": "http://patchwork.ozlabs.org/api/1.1/people/81768/?format=api",
        "name": "Jamin Lin",
        "email": "jamin_lin@aspeedtech.com"
    },
    "delegate": null,
    "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260416014928.1279360-5-jamin_lin@aspeedtech.com/mbox/",
    "series": [
        {
            "id": 500066,
            "url": "http://patchwork.ozlabs.org/api/1.1/series/500066/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=500066",
            "date": "2026-04-16T01:49:32",
            "name": "hw/usb/ehci: Add 64-bit descriptor addressing support",
            "version": 3,
            "mbox": "http://patchwork.ozlabs.org/series/500066/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/2223714/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/2223714/checks/",
    "tags": {},
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        "From": "Jamin Lin <jamin_lin@aspeedtech.com>",
        "To": "\"philmd@linaro.org\" <philmd@linaro.org>, =?iso-8859-1?q?C=E9dric_Le_Goat?=\n\t=?iso-8859-1?q?er?= <clg@kaod.org>, Peter Maydell <peter.maydell@linaro.org>,\n Steven Lee <steven_lee@aspeedtech.com>, Troy Lee <leetroy@gmail.com>,\n Kane Chen <kane_chen@aspeedtech.com>,\n Andrew Jeffery <andrew@codeconstruct.com.au>, Joel Stanley <joel@jms.id.au>,\n \"open list:ASPEED BMCs\" <qemu-arm@nongnu.org>,\n \"open list:All patches CC here\" <qemu-devel@nongnu.org>",
        "CC": "Jamin Lin <jamin_lin@aspeedtech.com>, Troy Lee <troy_lee@aspeedtech.com>,\n \"flwu@google.com\" <flwu@google.com>, \"nabihestefan@google.com\"\n <nabihestefan@google.com>",
        "Subject": "[PATCH v3 04/17] hw/usb/hcd-ehci.c: Replace fprintf(stderr, ...) with\n qemu_log_mask(LOG_GUEST_ERROR)",
        "Thread-Topic": "[PATCH v3 04/17] hw/usb/hcd-ehci.c: Replace fprintf(stderr, ...)\n with qemu_log_mask(LOG_GUEST_ERROR)",
        "Thread-Index": "AQHczUNIl3qnO/08SECSdkVJPlcLgA==",
        "Date": "Thu, 16 Apr 2026 01:49:38 +0000",
        "Message-ID": "<20260416014928.1279360-5-jamin_lin@aspeedtech.com>",
        "References": "<20260416014928.1279360-1-jamin_lin@aspeedtech.com>",
        "In-Reply-To": "<20260416014928.1279360-1-jamin_lin@aspeedtech.com>",
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        "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"
    },
    "content": "Replace direct fprintf(stderr, ...) calls with qemu_log_mask()\nusing LOG_GUEST_ERROR in the EHCI controller implementation.\n\nDirect writes to stderr are discouraged in QEMU as they bypass\nthe logging framework and cannot be filtered or controlled at\nruntime. Using qemu_log_mask() ensures that guest-visible errors\nare properly categorized and can be managed via QEMU logging\noptions.\n\nAll affected messages correspond to guest-triggerable error\nconditions, so LOG_GUEST_ERROR is used consistently.\n\nThis change improves integration with QEMU's logging infrastructure\nand aligns with upstream coding guidelines.\n\nSigned-off-by: Jamin Lin <jamin_lin@aspeedtech.com>\n---\n hw/usb/hcd-ehci.c | 43 +++++++++++++++++++++++++------------------\n 1 file changed, 25 insertions(+), 18 deletions(-)",
    "diff": "diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c\nindex 9b92384bac..bebd137f94 100644\n--- a/hw/usb/hcd-ehci.c\n+++ b/hw/usb/hcd-ehci.c\n@@ -36,6 +36,7 @@\n #include \"qemu/error-report.h\"\n #include \"qemu/main-loop.h\"\n #include \"system/runstate.h\"\n+#include \"qemu/log.h\"\n \n #define FRAME_TIMER_FREQ 1000\n #define FRAME_TIMER_NS   (NANOSECONDS_PER_SECOND / FRAME_TIMER_FREQ)\n@@ -425,7 +426,7 @@ static int ehci_get_pid(EHCIqtd *qtd)\n     case 2:\n         return USB_TOKEN_SETUP;\n     default:\n-        fprintf(stderr, \"bad token\\n\");\n+        qemu_log_mask(LOG_GUEST_ERROR, \"bad token\\n\");\n         return 0;\n     }\n }\n@@ -532,7 +533,7 @@ static void ehci_free_packet(EHCIPacket *p)\n     }\n     if (p->async == EHCI_ASYNC_FINISHED &&\n             p->packet.status == USB_RET_SUCCESS) {\n-        fprintf(stderr,\n+        qemu_log_mask(LOG_GUEST_ERROR,\n                 \"EHCI: Dropping completed packet from halted %s ep %02X\\n\",\n                 (p->pid == USB_TOKEN_IN) ? \"in\" : \"out\",\n                 get_field(p->queue->qh.epchar, QH_EPCHAR_EP));\n@@ -1042,8 +1043,9 @@ static void ehci_opreg_write(void *ptr, hwaddr addr,\n \n         /* not supporting dynamic frame list size at the moment */\n         if ((val & USBCMD_FLS) && !(s->usbcmd & USBCMD_FLS)) {\n-            fprintf(stderr, \"attempt to set frame list size -- value %d\\n\",\n-                    (int)val & USBCMD_FLS);\n+            qemu_log_mask(LOG_GUEST_ERROR,\n+                          \"attempt to set frame list size -- value %d\\n\",\n+                          (int)val & USBCMD_FLS);\n             val &= ~USBCMD_FLS;\n         }\n \n@@ -1101,7 +1103,7 @@ static void ehci_opreg_write(void *ptr, hwaddr addr,\n \n     case PERIODICLISTBASE:\n         if (ehci_periodic_enabled(s)) {\n-            fprintf(stderr,\n+            qemu_log_mask(LOG_GUEST_ERROR,\n               \"ehci: PERIODIC list base register set while periodic schedule\\n\"\n               \"      is enabled and HC is enabled\\n\");\n         }\n@@ -1109,7 +1111,7 @@ static void ehci_opreg_write(void *ptr, hwaddr addr,\n \n     case ASYNCLISTADDR:\n         if (ehci_async_enabled(s)) {\n-            fprintf(stderr,\n+            qemu_log_mask(LOG_GUEST_ERROR,\n               \"ehci: ASYNC list address register set while async schedule\\n\"\n               \"      is enabled and HC is enabled\\n\");\n         }\n@@ -1200,7 +1202,7 @@ static int ehci_init_transfer(EHCIPacket *p)\n \n     while (bytes > 0) {\n         if (cpage > 4) {\n-            fprintf(stderr, \"cpage out of range (%u)\\n\", cpage);\n+            qemu_log_mask(LOG_GUEST_ERROR, \"cpage out of range (%u)\\n\", cpage);\n             qemu_sglist_destroy(&p->sgl);\n             return -1;\n         }\n@@ -1306,7 +1308,8 @@ static void ehci_execute_complete(EHCIQueue *q)\n         break;\n     default:\n         /* should not be triggerable */\n-        fprintf(stderr, \"USB invalid response %d\\n\", p->packet.status);\n+        qemu_log_mask(LOG_GUEST_ERROR, \"USB invalid response %d\\n\",\n+                      p->packet.status);\n         g_assert_not_reached();\n     }\n \n@@ -1354,7 +1357,7 @@ static int ehci_execute(EHCIPacket *p, const char *action)\n            p->async == EHCI_ASYNC_INITIALIZED);\n \n     if (!(p->qtd.token & QTD_TOKEN_ACTIVE)) {\n-        fprintf(stderr, \"Attempting to execute inactive qtd\\n\");\n+        qemu_log_mask(LOG_GUEST_ERROR, \"Attempting to execute inactive qtd\\n\");\n         return -1;\n     }\n \n@@ -1395,7 +1398,8 @@ static int ehci_execute(EHCIPacket *p, const char *action)\n             p->packet.actual_length);\n \n     if (p->packet.actual_length > BUFF_SIZE) {\n-        fprintf(stderr, \"ret from usb_handle_packet > BUFF_SIZE\\n\");\n+        qemu_log_mask(LOG_GUEST_ERROR,\n+                      \"ret from usb_handle_packet > BUFF_SIZE\\n\");\n         return -1;\n     }\n \n@@ -1479,8 +1483,9 @@ static int ehci_process_itd(EHCIState *ehci,\n             case USB_RET_SUCCESS:\n                 break;\n             default:\n-                fprintf(stderr, \"Unexpected iso usb result: %d\\n\",\n-                        ehci->ipacket.status);\n+                qemu_log_mask(LOG_GUEST_ERROR,\n+                              \"Unexpected iso usb result: %d\\n\",\n+                              ehci->ipacket.status);\n                 /* Fall through */\n             case USB_RET_IOERROR:\n             case USB_RET_NODEV:\n@@ -1584,7 +1589,8 @@ static int ehci_state_fetchentry(EHCIState *ehci, int async)\n \n     /* section 4.8, only QH in async schedule */\n     if (async && (NLPTR_TYPE_GET(entry) != NLPTR_TYPE_QH)) {\n-        fprintf(stderr, \"non queue head request in async schedule\\n\");\n+        qemu_log_mask(LOG_GUEST_ERROR,\n+                      \"non queue head request in async schedule\\n\");\n         return -1;\n     }\n \n@@ -1606,7 +1612,7 @@ static int ehci_state_fetchentry(EHCIState *ehci, int async)\n \n     default:\n         /* TODO: handle FSTN type */\n-        fprintf(stderr, \"FETCHENTRY: entry at %X is of type %u \"\n+        qemu_log_mask(LOG_GUEST_ERROR, \"FETCHENTRY: entry at %X is of type %u \"\n                 \"which is not supported yet\\n\", entry, NLPTR_TYPE_GET(entry));\n         return -1;\n     }\n@@ -2112,13 +2118,14 @@ static void ehci_advance_state(EHCIState *ehci, int async)\n             break;\n \n         default:\n-            fprintf(stderr, \"Bad state!\\n\");\n+            qemu_log_mask(LOG_GUEST_ERROR, \"Bad state!\\n\");\n             g_assert_not_reached();\n         }\n \n         if (again < 0 || itd_count > 16) {\n             /* TODO: notify guest (raise HSE irq?) */\n-            fprintf(stderr, \"processing error - resetting ehci HC\\n\");\n+            qemu_log_mask(LOG_GUEST_ERROR,\n+                          \"processing error - resetting ehci HC\\n\");\n             ehci_reset(ehci);\n             again = 0;\n         }\n@@ -2175,7 +2182,7 @@ static void ehci_advance_async_state(EHCIState *ehci)\n \n     default:\n         /* this should only be due to a developer mistake */\n-        fprintf(stderr, \"ehci: Bad asynchronous state %d. \"\n+        qemu_log_mask(LOG_GUEST_ERROR, \"ehci: Bad asynchronous state %d. \"\n                 \"Resetting to active\\n\", ehci->astate);\n         g_assert_not_reached();\n     }\n@@ -2225,7 +2232,7 @@ static void ehci_advance_periodic_state(EHCIState *ehci)\n \n     default:\n         /* this should only be due to a developer mistake */\n-        fprintf(stderr, \"ehci: Bad periodic state %d. \"\n+        qemu_log_mask(LOG_GUEST_ERROR, \"ehci: Bad periodic state %d. \"\n                 \"Resetting to active\\n\", ehci->pstate);\n         g_assert_not_reached();\n     }\n",
    "prefixes": [
        "v3",
        "04/17"
    ]
}