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Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: ACPI: Fixes device power states array overflow ACPI, APEI, HEST, Detect duplicated hardware error source ID ACPI: Fix lockdep false positives in acpi_power_off()
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commit
a6b52a9db8
5 changed files with 33 additions and 19 deletions
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@ -139,13 +139,23 @@ static int __init hest_parse_ghes(struct acpi_hest_header *hest_hdr, void *data)
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{
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struct platform_device *ghes_dev;
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struct ghes_arr *ghes_arr = data;
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int rc;
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int rc, i;
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if (hest_hdr->type != ACPI_HEST_TYPE_GENERIC_ERROR)
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return 0;
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if (!((struct acpi_hest_generic *)hest_hdr)->enabled)
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return 0;
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for (i = 0; i < ghes_arr->count; i++) {
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struct acpi_hest_header *hdr;
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ghes_dev = ghes_arr->ghes_devs[i];
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hdr = *(struct acpi_hest_header **)ghes_dev->dev.platform_data;
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if (hdr->source_id == hest_hdr->source_id) {
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pr_warning(FW_WARN HEST_PFX "Duplicated hardware error source ID: %d.\n",
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hdr->source_id);
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return -EIO;
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}
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}
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ghes_dev = platform_device_alloc("GHES", hest_hdr->source_id);
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if (!ghes_dev)
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return -ENOMEM;
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@ -1332,23 +1332,6 @@ int acpi_resources_are_enforced(void)
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}
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EXPORT_SYMBOL(acpi_resources_are_enforced);
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/*
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* Create and initialize a spinlock.
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*/
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acpi_status
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acpi_os_create_lock(acpi_spinlock *out_handle)
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{
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spinlock_t *lock;
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lock = ACPI_ALLOCATE(sizeof(spinlock_t));
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if (!lock)
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return AE_NO_MEMORY;
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spin_lock_init(lock);
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*out_handle = lock;
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return AE_OK;
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}
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/*
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* Deallocate the memory for a spinlock.
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*/
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@ -210,7 +210,7 @@ struct acpi_device_power_state {
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struct acpi_device_power {
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int state; /* Current state */
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struct acpi_device_power_flags flags;
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struct acpi_device_power_state states[4]; /* Power states (D0-D3) */
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struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */
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};
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/* Performance Management */
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@ -98,8 +98,11 @@ acpi_os_table_override(struct acpi_table_header *existing_table,
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/*
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* Spinlock primitives
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*/
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#ifndef acpi_os_create_lock
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acpi_status
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acpi_os_create_lock(acpi_spinlock *out_handle);
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#endif
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void acpi_os_delete_lock(acpi_spinlock handle);
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@ -159,6 +159,24 @@ static inline void *acpi_os_acquire_object(acpi_cache_t * cache)
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} while (0)
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#endif
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/*
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* When lockdep is enabled, the spin_lock_init() macro stringifies it's
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* argument and uses that as a name for the lock in debugging.
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* By executing spin_lock_init() in a macro the key changes from "lock" for
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* all locks to the name of the argument of acpi_os_create_lock(), which
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* prevents lockdep from reporting false positives for ACPICA locks.
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*/
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#define acpi_os_create_lock(__handle) \
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({ \
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spinlock_t *lock = ACPI_ALLOCATE(sizeof(*lock)); \
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\
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if (lock) { \
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*(__handle) = lock; \
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spin_lock_init(*(__handle)); \
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} \
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lock ? AE_OK : AE_NO_MEMORY; \
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})
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#endif /* __KERNEL__ */
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#endif /* __ACLINUX_H__ */
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