From: Zhang Yanfei <[email protected]>

saved_max_mem is used to calculate the amount of memory that the previous
kernel used. And passed to the dump-capture kernel by kernel commandline
parameter "savemaxmem=". But in the dump-capture kernel, we never use
this parameter now, so remove saved_max_mem and don't add "savemaxmem="
to new kernel commandline.

Signed-off-by: Zhang Yanfei <[email protected]>
---
 kexec/arch/ppc64/crashdump-ppc64.c |   19 -------------------
 1 files changed, 0 insertions(+), 19 deletions(-)

diff --git a/kexec/arch/ppc64/crashdump-ppc64.c 
b/kexec/arch/ppc64/crashdump-ppc64.c
index 49cab12..e31dd6d 100644
--- a/kexec/arch/ppc64/crashdump-ppc64.c
+++ b/kexec/arch/ppc64/crashdump-ppc64.c
@@ -69,17 +69,6 @@ static int crash_max_memory_ranges;
  */
 mem_rgns_t usablemem_rgns = {0, NULL};
 
-/*
- * To store the memory size of the first kernel and this value will be
- * passed to the second kernel as command line (savemaxmem=xM).
- * The second kernel will be calculated saved_max_pfn based on this
- * variable.
- * Since we are creating/using usable-memory property, there is no way
- * we can determine the RAM size unless parsing the device-tree/memoy@/reg
- * property in the kernel.
- */
-uint64_t saved_max_mem = 0;
-
 static unsigned long long cstart, cend;
 static int memory_ranges;
 
@@ -303,13 +292,6 @@ static int get_crash_memory_ranges(struct memory_range 
**range, int *ranges)
                crash_memory_range[memory_ranges].start = cstart;
                crash_memory_range[memory_ranges++].end = cend;
        }
-       /*
-        * Can not trust the memory regions order that we read from
-        * device-tree. Hence, get the MAX end value.
-        */
-       for (i = 0; i < memory_ranges; i++)
-               if (saved_max_mem < crash_memory_range[i].end)
-                       saved_max_mem = crash_memory_range[i].end;
 
        *range = crash_memory_range;
        *ranges = memory_ranges;
@@ -446,7 +428,6 @@ int load_crashdump_segments(struct kexec_info *info, char* 
mod_cmdline,
         * read by flatten_device_tree and modified if required
         */
        add_cmdline_param(mod_cmdline, elfcorehdr, " elfcorehdr=", "K");
-       add_cmdline_param(mod_cmdline, saved_max_mem, " savemaxmem=", "M");
        return 0;
 }
 
-- 
1.7.1

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