Files
erofs-linux/arch/x86/kernel/pmem.c
T
Tom Lendacky 1d2e733b13 resource: Provide resource struct in resource walk callback
In preperation for a new function that will need additional resource
information during the resource walk, update the resource walk callback to
pass the resource structure.  Since the current callback start and end
arguments are pulled from the resource structure, the callback functions
can obtain them from the resource structure directly.

Signed-off-by: Tom Lendacky <[email protected]>
Signed-off-by: Brijesh Singh <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Kees Cook <[email protected]>
Reviewed-by: Borislav Petkov <[email protected]>
Tested-by: Borislav Petkov <[email protected]>
Cc: [email protected]
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
2017-11-07 15:35:57 +01:00

33 lines
748 B
C

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2015, Christoph Hellwig.
* Copyright (c) 2015, Intel Corporation.
*/
#include <linux/platform_device.h>
#include <linux/init.h>
#include <linux/ioport.h>
static int found(struct resource *res, void *data)
{
return 1;
}
static __init int register_e820_pmem(void)
{
struct platform_device *pdev;
int rc;
rc = walk_iomem_res_desc(IORES_DESC_PERSISTENT_MEMORY_LEGACY,
IORESOURCE_MEM, 0, -1, NULL, found);
if (rc <= 0)
return 0;
/*
* See drivers/nvdimm/e820.c for the implementation, this is
* simply here to trigger the module to load on demand.
*/
pdev = platform_device_alloc("e820_pmem", -1);
return platform_device_add(pdev);
}
device_initcall(register_e820_pmem);