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hwmon: (k10temp) Rely on subsystem locking 

Attribute access is now serialized in the hardware monitoring core,
so locking in the driver code is no longer necessary. Drop it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck 2025-09-07 15:36:01 -07:00
parent 3ed9a92747
commit 8b932c6af4
1 changed files with 0 additions and 5 deletions
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5
drivers/hwmon/k10temp.c
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@ -31,9 +31,6 @@ static bool force;
module_param(force, bool, 0444); module_param(force, bool, 0444);
MODULE_PARM_DESC(force, "force loading on processors with erratum 319"); MODULE_PARM_DESC(force, "force loading on processors with erratum 319");
/* Provide lock for writing to NB_SMU_IND_ADDR */
static DEFINE_MUTEX(nb_smu_ind_mutex);
#ifndef PCI_DEVICE_ID_AMD_15H_M70H_NB_F3 #ifndef PCI_DEVICE_ID_AMD_15H_M70H_NB_F3
#define PCI_DEVICE_ID_AMD_15H_M70H_NB_F3 0x15b3 #define PCI_DEVICE_ID_AMD_15H_M70H_NB_F3 0x15b3
#endif #endif
@ -137,12 +134,10 @@ static void read_tempreg_pci(struct pci_dev *pdev, u32 *regval)
static void amd_nb_index_read(struct pci_dev *pdev, unsigned int devfn, static void amd_nb_index_read(struct pci_dev *pdev, unsigned int devfn,
unsigned int base, int offset, u32 *val) unsigned int base, int offset, u32 *val)
{ {
mutex_lock(&nb_smu_ind_mutex);
pci_bus_write_config_dword(pdev->bus, devfn, pci_bus_write_config_dword(pdev->bus, devfn,
base, offset); base, offset);
pci_bus_read_config_dword(pdev->bus, devfn, pci_bus_read_config_dword(pdev->bus, devfn,
base + 4, val); base + 4, val);
mutex_unlock(&nb_smu_ind_mutex);
} }
static void read_htcreg_nb_f15(struct pci_dev *pdev, u32 *regval) static void read_htcreg_nb_f15(struct pci_dev *pdev, u32 *regval)