A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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Merge "Minidump: Dump only accessible pages data"

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This commit is contained in:
qctecmdr 2020-09-15 08:24:18 -07:00 • committed by Gerrit - the friendly Code Review server
commit b8a0ce3faf
1 changed files with 8 additions and 3 deletions
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11
drivers/soc/qcom/minidump_log.c
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@ -15,6 +15,7 @@
#include <linux/slab.h>
#include <linux/thread_info.h>
#include <soc/qcom/minidump.h>
#include <soc/qcom/secure_buffer.h>
#include <asm/page.h>
#include <asm/memory.h>
#include <asm/sections.h>
@ -830,10 +831,14 @@ static void md_dump_data(unsigned long addr, int nbytes, const char *name)
for (j = 0; j < 8; j++) {
u32 data;
if (probe_kernel_address(p, data))
seq_buf_printf(md_cntxt_seq_buf, " ********");
if (__is_lm_address(p) &&
kern_addr_valid((unsigned long)p) &&
page_accessible(page_to_pfn(virt_to_page(p))) &&
!probe_kernel_address(p, data))
seq_buf_printf(md_cntxt_seq_buf, " %08x",
data);
else
seq_buf_printf(md_cntxt_seq_buf, " %08x", data);
seq_buf_printf(md_cntxt_seq_buf, " ********");
++p;
}
seq_buf_printf(md_cntxt_seq_buf, "\n");