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Wysocki" , Viresh Kumar CC: Perry Yuan , K Prateek Nayak , , , , Mario Limonciello Subject: [PATCH v3 7/9] cpufreq/amd-pstate: Reduce the scope of exported symbols Date: Mon, 27 Jul 2026 07:20:54 +0000 Message-ID: <20260727072056.1248-8-kprateek.nayak@amd.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260727072056.1248-1-kprateek.nayak@amd.com> References: <20260727072056.1248-1-kprateek.nayak@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: satlexmb07.amd.com (10.181.42.216) To satlexmb07.amd.com (10.181.42.216) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL02EPF0001A0FB:EE_|DS2PR12MB9638:EE_ X-MS-Office365-Filtering-Correlation-Id: 97616451-5b7b-468d-ca09-08deebaff10c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|82310400026|36860700016|376014|23010399003|11063799006|56012099006|22082099003|18002099003|10067099003|6133799003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:satlexmb07.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(1800799024)(82310400026)(36860700016)(376014)(23010399003)(11063799006)(56012099006)(22082099003)(18002099003)(10067099003)(6133799003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: mq1W+GmsOtBehio0aolDL70uSPj5bT9PMw+kIFX0PA2KLrHHXFfJbFp4aF5lOPxUYGD9TQOpTXM2N1kYm4Ge6KmJOmzc13iny1tcdGS/kb/Qj4uxNU5or/Xre3Pftm7gC61afUYMAg2Si4+9cZcTxf5klppwNKFwj6v/FyQ/qUxIaEZjgK4V/uTnqq81E+yKJZYk6h9L9oVW589Q6hPvGA+ANJg4vaLWzo89t98H3EbfxtUHaYa41NyJlpXcomrNmWKgBUQTxp/16AnAeqwvnsIV2sMsf3OMEA3MekOar0Scpuubfh+8tCvdYYYGUAVa4XB0cFYKqgYsKJTPJCWxeZG1OUax7dj4CJQpkVkAPrP+v2j1qAcImi/4WHIotG5pGCXJEHMqoDK5LipXpdIOsWoXyoGVrLMv7yRmBLt7etw/pmsuYzAb6HLHGH0tOD5s X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Jul 2026 07:23:22.8692 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 97616451-5b7b-468d-ca09-08deebaff10c X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BL02EPF0001A0FB.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS2PR12MB9638 Symbols exported by amd-pstate.c are ever only needed for amd-pstate-ut. Introduce EXPORT_SYMBOL_FOR_PSTATE_UT() to export these symbols selectively to "amd-pstate-ut" namespace as opposed to all GPL modules. No functional changes intended. Reviewed-by: Mario Limonciello (AMD) Signed-off-by: K Prateek Nayak --- changelog v2..v3: o No changes. --- drivers/cpufreq/amd-pstate.c | 14 +++++++------- drivers/cpufreq/amd-pstate.h | 7 +++++++ 2 files changed, 14 insertions(+), 7 deletions(-) diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c index a380c665461f..93d275da12c6 100644 --- a/drivers/cpufreq/amd-pstate.c +++ b/drivers/cpufreq/amd-pstate.c @@ -75,7 +75,7 @@ const char *amd_pstate_get_mode_string(enum amd_pstate_mode mode) mode = AMD_PSTATE_UNDEFINED; return amd_pstate_mode_string[mode]; } -EXPORT_SYMBOL_GPL(amd_pstate_get_mode_string); +EXPORT_SYMBOL_FOR_PSTATE_UT(amd_pstate_get_mode_string); struct quirk_entry { u32 nominal_freq; @@ -1272,7 +1272,7 @@ void amd_pstate_clear_dynamic_epp(struct cpufreq_policy *policy) kfree(cpudata->profile_name); cpudata->dynamic_epp = false; } -EXPORT_SYMBOL_GPL(amd_pstate_clear_dynamic_epp); +EXPORT_SYMBOL_FOR_PSTATE_UT(amd_pstate_clear_dynamic_epp); static int amd_pstate_set_dynamic_epp(struct cpufreq_policy *policy) { @@ -1469,7 +1469,7 @@ ssize_t store_energy_performance_preference(struct cpufreq_policy *policy, return count; } -EXPORT_SYMBOL_GPL(store_energy_performance_preference); +EXPORT_SYMBOL_FOR_PSTATE_UT(store_energy_performance_preference); ssize_t show_energy_performance_preference(struct cpufreq_policy *policy, char *buf) { @@ -1503,7 +1503,7 @@ ssize_t show_energy_performance_preference(struct cpufreq_policy *policy, char * return sysfs_emit(buf, "%s\n", energy_perf_strings[preference]); } -EXPORT_SYMBOL_GPL(show_energy_performance_preference); +EXPORT_SYMBOL_FOR_PSTATE_UT(show_energy_performance_preference); static ssize_t store_amd_pstate_floor_freq(struct cpufreq_policy *policy, const char *buf, size_t count) @@ -1603,7 +1603,7 @@ struct freq_attr **amd_pstate_get_current_attrs(void) return NULL; return current_pstate_driver->attr; } -EXPORT_SYMBOL_GPL(amd_pstate_get_current_attrs); +EXPORT_SYMBOL_FOR_PSTATE_UT(amd_pstate_get_current_attrs); static struct freq_attr **get_freq_attrs(void) { @@ -1788,7 +1788,7 @@ int amd_pstate_get_status(void) { return cppc_state; } -EXPORT_SYMBOL_GPL(amd_pstate_get_status); +EXPORT_SYMBOL_FOR_PSTATE_UT(amd_pstate_get_status); int amd_pstate_update_status(const char *buf, size_t size) { @@ -1808,7 +1808,7 @@ int amd_pstate_update_status(const char *buf, size_t size) return 0; } -EXPORT_SYMBOL_GPL(amd_pstate_update_status); +EXPORT_SYMBOL_FOR_PSTATE_UT(amd_pstate_update_status); static ssize_t status_show(struct device *dev, struct device_attribute *attr, char *buf) diff --git a/drivers/cpufreq/amd-pstate.h b/drivers/cpufreq/amd-pstate.h index 23e8baa05849..edd697a5e29f 100644 --- a/drivers/cpufreq/amd-pstate.h +++ b/drivers/cpufreq/amd-pstate.h @@ -11,6 +11,13 @@ #include #include +#if IS_MODULE(CONFIG_X86_AMD_PSTATE_UT) +#define EXPORT_SYMBOL_FOR_PSTATE_UT(symbol) \ + EXPORT_SYMBOL_FOR_MODULES(symbol, "amd-pstate-ut") +#else +#define EXPORT_SYMBOL_FOR_PSTATE_UT(symbol) +#endif + /********************************************************************* * AMD P-state INTERFACE * *********************************************************************/ -- 2.34.1