Commit cd1769e1 authored by Long Li's avatar Long Li Committed by Wei Liu
Browse files

Drivers: hv: Remove hv_alloc/free_* helpers 



There are no users for those functions, remove them.

Signed-off-by: default avatarLong Li <longli@microsoft.com>
Reviewed-by: default avatarMichael Kelley <mhklinux@outlook.com>
Link: https://lore.kernel.org/r/1746492997-4599-6-git-send-email-longli@linuxonhyperv.com


Signed-off-by: default avatarWei Liu <wei.liu@kernel.org>
Message-ID: <1746492997-4599-6-git-send-email-longli@linuxonhyperv.com>
parent a60822bc

drivers/hv/hv_common.c

+0 −39
Original line number Diff line number Diff line
@@ -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;



/*

include/asm-generic/mshyperv.h

+0 −4
Original line number Diff line number Diff line
@@ -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