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Drivers: hv: Remove hv_alloc/free_* helpers

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There are no users for those functions, remove them.

Signed-off-by: Long Li <longli@microsoft.com>
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
Link: https://lore.kernel.org/r/1746492997-4599-6-git-send-email-longli@linuxonhyperv.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <1746492997-4599-6-git-send-email-longli@linuxonhyperv.com>
This commit is contained in:
Long Li
2025-05-05 17:56:37 -07:00
committed by Wei Liu
parent a60822bc11
commit cd1769e1fe
2 changed files with 0 additions and 43 deletions
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39
drivers/hv/hv_common.c
View File

@@ -105,45 +105,6 @@ void __init hv_common_free(void)
hv_synic_eventring_tail = NULL;
}
/*
* Functions for allocating and freeing memory with size and
* alignment HV_HYP_PAGE_SIZE. These functions are needed because
* the guest page size may not be the same as the Hyper-V page
* size. We depend upon kmalloc() aligning power-of-two size
* allocations to the allocation size boundary, so that the
* allocated memory appears to Hyper-V as a page of the size
* it expects.
*/
void *hv_alloc_hyperv_page(void)
{
BUILD_BUG_ON(PAGE_SIZE < HV_HYP_PAGE_SIZE);
if (PAGE_SIZE == HV_HYP_PAGE_SIZE)
return (void *)__get_free_page(GFP_KERNEL);
else
return kmalloc(HV_HYP_PAGE_SIZE, GFP_KERNEL);
}
EXPORT_SYMBOL_GPL(hv_alloc_hyperv_page);
void *hv_alloc_hyperv_zeroed_page(void)
{
if (PAGE_SIZE == HV_HYP_PAGE_SIZE)
return (void *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
else
return kzalloc(HV_HYP_PAGE_SIZE, GFP_KERNEL);
}
EXPORT_SYMBOL_GPL(hv_alloc_hyperv_zeroed_page);
void hv_free_hyperv_page(void *addr)
{
if (PAGE_SIZE == HV_HYP_PAGE_SIZE)
free_page((unsigned long)addr);
else
kfree(addr);
}
EXPORT_SYMBOL_GPL(hv_free_hyperv_page);
static void *hv_panic_page;
/*

4
include/asm-generic/mshyperv.h
View File

@@ -236,10 +236,6 @@ int hv_common_cpu_init(unsigned int cpu);
int hv_common_cpu_die(unsigned int cpu);
void hv_identify_partition_type(void);
void *hv_alloc_hyperv_page(void);
void *hv_alloc_hyperv_zeroed_page(void);
void hv_free_hyperv_page(void *addr);
/**
* hv_cpu_number_to_vp_number() - Map CPU to VP.
* @cpu_number: CPU number in Linux terms