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GET /api/patches/2218648/?format=api
{ "id": 2218648, "url": "http://patchwork.ozlabs.org/api/patches/2218648/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260401152657.314902-7-brian.cain@oss.qualcomm.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/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": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260401152657.314902-7-brian.cain@oss.qualcomm.com>", "list_archive_url": null, "date": "2026-04-01T15:26:26", "name": "[v6,06/37] target/hexagon: Suppress unused-variable warnings for sysemu source regs", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "8e1c7325a598aba43779ce528196dce73971b342", "submitter": { "id": 89839, "url": "http://patchwork.ozlabs.org/api/people/89839/?format=api", "name": "Brian Cain", "email": "brian.cain@oss.qualcomm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260401152657.314902-7-brian.cain@oss.qualcomm.com/mbox/", "series": [ { "id": 498350, "url": "http://patchwork.ozlabs.org/api/series/498350/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=498350", "date": "2026-04-01T15:26:45", "name": "Hexagon system emulation - Part 1/3", "version": 6, "mbox": "http://patchwork.ozlabs.org/series/498350/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2218648/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2218648/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=qualcomm.com header.i=@qualcomm.com header.a=rsa-sha256\n header.s=qcppdkim1 header.b=DKdlyzRg;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com\n header.a=rsa-sha256 header.s=google header.b=I6iNK7mg;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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charset=\"utf-8\"", "Content-Transfer-Encoding": "base64", "X-Proofpoint-GUID": "1eONB03kNZe_xVGNt2iYb15OlaRGmwFg", "X-Proofpoint-ORIG-GUID": "1eONB03kNZe_xVGNt2iYb15OlaRGmwFg", "X-Authority-Analysis": "v=2.4 cv=B/C0EetM c=1 sm=1 tr=0 ts=69cd399a cx=c_pps\n a=wEP8DlPgTf/vqF+yE6f9lg==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17\n a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10\n a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22\n a=pGLkceISAAAA:8 a=EUspDBNiAAAA:8 a=dvhcR3axvtdXbCCTPW8A:9 a=QEXdDO2ut3YA:10\n a=bBxd6f-gb0O0v-kibOvt:22", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwNDAxMDE0NCBTYWx0ZWRfXzynxr+xFSSh0\n 6CTmteENyEP7Hs/CqGfiTXInQTjPkQk81g1GqQEWuZeWfRKVMxvrzaGRCHvi6tzIR2HBLtW0+iF\n vModmzBMJ1sBBsi8G76tRlDWtNLlHqqVjnckUNKlK7gdnXwAM2eiVAz4PM+0HSbUFpE+S8KnnpX\n G67AVuaxRwAP0PIZNJx+tHkmUiHqJFORTg8/Vk1bezA8qZs1mZc4WN1kPnIBnsyTG6Stgw2jRlJ\n XRD6pVxCE4gW5C6Ws75aAbMTGXhmqK6ywkg5ZN336ag/fhSStpJxen0lSiAlADGuBPskfV1tpla\n Ac7nuiPA+e0szfJqeoJ5oEjuWk9LRN5QZMP3O4PgIXBK4ek+fy2IPPCknQiSwKhsTah3ugSKIKb\n GUPiHOUmSaGjtDtvoOPmQJK1kMUWyoZ+7iSbrg2gk/5w9ahWfk0PUL7JoAJhsooAxlw9/p7ODVR\n tzAq3zOpq1e9Ap1FLZQ==", "X-Proofpoint-Virus-Version": "vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-04-01_04,2026-04-01_02,2025-10-01_01", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n spamscore=0 priorityscore=1501 bulkscore=0 phishscore=0 malwarescore=0\n lowpriorityscore=0 adultscore=0 clxscore=1015 impostorscore=0 suspectscore=0\n classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0\n reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2604010144", "Received-SPF": "pass client-ip=205.220.180.131;\n envelope-from=brian.cain@oss.qualcomm.com; helo=mx0b-0031df01.pphosted.com", "X-Spam_score_int": "-7", "X-Spam_score": "-0.8", "X-Spam_bar": "/", "X-Spam_report": "(-0.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=1,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=1, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 autolearn=no autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "The analyze_read() methods on GuestSource, GuestPairSource,\nSystemSource, and SystemPairSource were no-ops because these\nsource registers do not need read-tracking in the analyze phase.\nHowever, gen_analyze_funcs.py unconditionally declares the\nregister-number variable (e.g. GsN) via decl_reg_num() for all\nregisters that are read or written. When building with\nhexagon-softmmu, the generated analyze function bodies are\ncompiled (outside the #ifndef CONFIG_USER_ONLY guard), and the\ndeclared-but-unreferenced register-number variable triggers\n-Werror=unused-variable under both gcc and clang.\n\nOverride decl_reg_num() in each class to declare the register number with\nG_GNUC_UNUSED, suppressing the warning.\n\nReviewed-by: Taylor Simpson <ltaylorsimpson@gmail.com>\nSigned-off-by: Brian Cain <brian.cain@oss.qualcomm.com>\n---\n target/hexagon/hex_common.py | 16 ++++++++++++++++\n 1 file changed, 16 insertions(+)", "diff": "diff --git a/target/hexagon/hex_common.py b/target/hexagon/hex_common.py\nindex ceb4b6812d6..1daf7239fc4 100755\n--- a/target/hexagon/hex_common.py\n+++ b/target/hexagon/hex_common.py\n@@ -1068,6 +1068,10 @@ def analyze_write(self, f, tag, regno):\n \"\"\"))\n \n class GuestSource(GuestRegister, Single, OldSource):\n+ def decl_reg_num(self, f, regno):\n+ f.write(code_fmt(f\"\"\"\\\n+ const int {self.reg_num} G_GNUC_UNUSED = insn->regno[{regno}];\n+ \"\"\"))\n def decl_tcg(self, f, tag, regno):\n self.decl_reg_num(f, regno)\n f.write(code_fmt(f\"\"\"\\\n@@ -1093,6 +1097,10 @@ def analyze_write(self, f, tag, regno):\n \"\"\"))\n \n class GuestPairSource(GuestRegister, Pair, OldSource):\n+ def decl_reg_num(self, f, regno):\n+ f.write(code_fmt(f\"\"\"\\\n+ const int {self.reg_num} G_GNUC_UNUSED = insn->regno[{regno}];\n+ \"\"\"))\n def decl_tcg(self, f, tag, regno):\n self.decl_reg_num(f, regno)\n f.write(code_fmt(f\"\"\"\\\n@@ -1118,6 +1126,10 @@ def analyze_write(self, f, tag, regno):\n \"\"\"))\n \n class SystemSource(Register, Single, OldSource):\n+ def decl_reg_num(self, f, regno):\n+ f.write(code_fmt(f\"\"\"\\\n+ const int {self.reg_num} G_GNUC_UNUSED = insn->regno[{regno}];\n+ \"\"\"))\n def decl_tcg(self, f, tag, regno):\n self.decl_reg_num(f, regno)\n f.write(code_fmt(f\"\"\"\\\n@@ -1143,6 +1155,10 @@ def analyze_write(self, f, tag, regno):\n \"\"\"))\n \n class SystemPairSource(Register, Pair, OldSource):\n+ def decl_reg_num(self, f, regno):\n+ f.write(code_fmt(f\"\"\"\\\n+ const int {self.reg_num} G_GNUC_UNUSED = insn->regno[{regno}];\n+ \"\"\"))\n def decl_tcg(self, f, tag, regno):\n self.decl_reg_num(f, regno)\n f.write(code_fmt(f\"\"\"\\\n", "prefixes": [ "v6", "06/37" ] }