Revision 098179413d07392ad8c52c7c7605d3d3886ef569 authored by Linus Torvalds on 13 October 2022, 19:19:18 UTC, committed by Linus Torvalds on 13 October 2022, 19:19:18 UTC
Pull MMC fixes from Ulf Hansson: "MMC core: - Add SD card quirk for broken discard MMC host: - renesas_sdhi: Fix clock rounding errors - sdhci-sprd: Fix minimum clock limit to detect cards - sdhci-tegra: Use actual clock rate for SW tuning correction" * tag 'mmc-v6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: sdhci-sprd: Fix minimum clock limit mmc: sdhci-tegra: Use actual clock rate for SW tuning correction mmc: renesas_sdhi: Fix rounding errors mmc: core: Add SD card quirk for broken discard
crash_dump.c
// SPDX-License-Identifier: GPL-2.0-only
#include <linux/kernel.h>
#include <linux/crash_dump.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/export.h>
/*
* stores the physical address of elf header of crash image
*
* Note: elfcorehdr_addr is not just limited to vmcore. It is also used by
* is_kdump_kernel() to determine if we are booting after a panic. Hence put
* it under CONFIG_CRASH_DUMP and not CONFIG_PROC_VMCORE.
*/
unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX;
EXPORT_SYMBOL_GPL(elfcorehdr_addr);
/*
* stores the size of elf header of crash image
*/
unsigned long long elfcorehdr_size;
/*
* elfcorehdr= specifies the location of elf core header stored by the crashed
* kernel. This option will be passed by kexec loader to the capture kernel.
*
* Syntax: elfcorehdr=[size[KMG]@]offset[KMG]
*/
static int __init setup_elfcorehdr(char *arg)
{
char *end;
if (!arg)
return -EINVAL;
elfcorehdr_addr = memparse(arg, &end);
if (*end == '@') {
elfcorehdr_size = elfcorehdr_addr;
elfcorehdr_addr = memparse(end + 1, &end);
}
return end > arg ? 0 : -EINVAL;
}
early_param("elfcorehdr", setup_elfcorehdr);
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