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bh=0Fql05hs8YXgjepE7Xhz/cxP9a1+eoyB0oUmynBhbxw=; b=JvjNCc7VuZtbQfnJMoD07KzES5qIdZp8+xqzDsHfRog5t/gsIRQ080FXK2Yz8damjCYWJ/gRngmCWJEo+iMLnJInrZeAQauh8S2osN0yyfRMoI08Q2AxbHrA3l8iNLJgXZt3eZDyXHD9lUYFt0BepBBUWzXq6oYjq0ufZvm7NO0= X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 149.199.62.198) smtp.mailfrom=xilinx.com; lists.xenproject.org; dkim=none (message not signed) header.d=none;lists.xenproject.org; dmarc=pass action=none header.from=xilinx.com; Received-SPF: Pass (protection.outlook.com: domain of xilinx.com designates 149.199.62.198 as permitted sender) receiver=protection.outlook.com; client-ip=149.199.62.198; helo=xsj-pvapexch01.xlnx.xilinx.com; From: Vikram Garhwal To: CC: , , , , Vikram Garhwal Subject: [XEN][RFC PATCH v2 04/12] libfdt: Add fdt_ prefix to overlay_get_target() Date: Mon, 8 Nov 2021 23:02:19 -0800 Message-ID: <1636441347-133850-5-git-send-email-fnu.vikram@xilinx.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1636441347-133850-1-git-send-email-fnu.vikram@xilinx.com> References: <1636441347-133850-1-git-send-email-fnu.vikram@xilinx.com> MIME-Version: 1.0 Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 4c742b77-b06e-4ddd-5241-08d9a34ef96b X-MS-TrafficTypeDiagnostic: BYAPR02MB4215: X-Microsoft-Antispam-PRVS: X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply X-MS-Oob-TLC-OOBClassifiers: OLM:7219; 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X-OriginatorOrg: xilinx.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Nov 2021 07:03:03.6132 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 4c742b77-b06e-4ddd-5241-08d9a34ef96b X-MS-Exchange-CrossTenant-Id: 657af505-d5df-48d0-8300-c31994686c5c X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=657af505-d5df-48d0-8300-c31994686c5c;Ip=[149.199.62.198];Helo=[xsj-pvapexch01.xlnx.xilinx.com] X-MS-Exchange-CrossTenant-AuthSource: SN1NAM02FT0011.eop-nam02.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR02MB4215 Add fdt_ prefix to overlay_get_target() and remove static type. This is done to get the target path for all the overlay nodes. This is useful to find which nodes are to be added/removed in dt_host. Also, sending this patch to dtc mailing list to avoid the divergence. Signed-off-by: Vikram Garhwal --- xen/common/libfdt/fdt_overlay.c | 12 ++++++------ xen/include/xen/libfdt/libfdt.h | 3 +++ 2 files changed, 9 insertions(+), 6 deletions(-) diff --git a/xen/common/libfdt/fdt_overlay.c b/xen/common/libfdt/fdt_overlay.c index 7b95e2b..194f51b 100644 --- a/xen/common/libfdt/fdt_overlay.c +++ b/xen/common/libfdt/fdt_overlay.c @@ -42,13 +42,13 @@ static uint32_t overlay_get_target_phandle(const void *fdto, int fragment) } /** - * overlay_get_target - retrieves the offset of a fragment's target + * fdt_overlay_get_target - retrieves the offset of a fragment's target * @fdt: Base device tree blob * @fdto: Device tree overlay blob * @fragment: node offset of the fragment in the overlay * @pathp: pointer which receives the path of the target (or NULL) * - * overlay_get_target() retrieves the target offset in the base + * fdt_overlay_get_target() retrieves the target offset in the base * device tree of a fragment, no matter how the actual targeting is * done (through a phandle or a path) * @@ -56,7 +56,7 @@ static uint32_t overlay_get_target_phandle(const void *fdto, int fragment) * the targeted node offset in the base device tree * Negative error code on error */ -static int overlay_get_target(const void *fdt, const void *fdto, +int fdt_overlay_get_target(const void *fdt, const void *fdto, int fragment, char const **pathp) { uint32_t phandle; @@ -638,7 +638,7 @@ static int overlay_merge(void *fdt, void *fdto) if (overlay < 0) return overlay; - target = overlay_get_target(fdt, fdto, fragment, NULL); + target = fdt_overlay_get_target(fdt, fdto, fragment, NULL); if (target < 0) return target; @@ -781,7 +781,7 @@ static int overlay_symbol_update(void *fdt, void *fdto) return -FDT_ERR_BADOVERLAY; /* get the target of the fragment */ - ret = overlay_get_target(fdt, fdto, fragment, &target_path); + ret = fdt_overlay_get_target(fdt, fdto, fragment, &target_path); if (ret < 0) return ret; target = ret; @@ -803,7 +803,7 @@ static int overlay_symbol_update(void *fdt, void *fdto) if (!target_path) { /* again in case setprop_placeholder changed it */ - ret = overlay_get_target(fdt, fdto, fragment, &target_path); + ret = fdt_overlay_get_target(fdt, fdto, fragment, &target_path); if (ret < 0) return ret; target = ret; diff --git a/xen/include/xen/libfdt/libfdt.h b/xen/include/xen/libfdt/libfdt.h index c71689e..1f549d0 100644 --- a/xen/include/xen/libfdt/libfdt.h +++ b/xen/include/xen/libfdt/libfdt.h @@ -2115,6 +2115,9 @@ int fdt_overlay_apply(void *fdt, void *fdto); const char *fdt_strerror(int errval); +int fdt_overlay_get_target(const void *fdt, const void *fdto, int fragment, + char const **pathp); + #ifdef __cplusplus } #endif -- 2.7.4