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cpufreq/amd-pstate: Reduce the scope of exported symbols

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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) <superm1@kernel.org>
Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com>
Link: https://lore.kernel.org/r/20260727072056.1248-8-kprateek.nayak@amd.com
Signed-off-by: Mario Limonciello <superm1@kernel.org>
This commit is contained in:
K Prateek Nayak
2026-07-27 07:20:54 +00:00
committed by Mario Limonciello
parent d3a019bd08
commit 047e65218d
2 changed files with 14 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/cpufreq/amd-pstate.c
View File

@@ -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)

7
drivers/cpufreq/amd-pstate.h
View File

@@ -11,6 +11,13 @@
#include <linux/pm_qos.h>
#include <linux/platform_profile.h>
#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 *
*********************************************************************/