Re: [PATCH v19 04/13] kdump: reduce unnecessary parameters of parse_crashkernel_{high|low}()

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On 12/28/21 7:26 AM, Zhen Lei wrote:
Delete confusing parameters 'system_ram' and 'crash_base' of
parse_crashkernel_{high|low}(), they are only needed by the case of
"crashkernel=X@[offset]".

Signed-off-by: Zhen Lei <thunder.leizhen@xxxxxxxxxx>
>
Acked-by: John Donnelly  <john.p.donnelly@xxxxxxxxxx>

---
  kernel/crash_core.c | 21 ++++++++++-----------
  1 file changed, 10 insertions(+), 11 deletions(-)

diff --git a/kernel/crash_core.c b/kernel/crash_core.c
index 3b9e01fc450b2a4..b7d024eb464d0ae 100644
--- a/kernel/crash_core.c
+++ b/kernel/crash_core.c
@@ -278,20 +278,20 @@ int __init parse_crashkernel(char *cmdline,
  }
static int __init parse_crashkernel_high(char *cmdline,
-			     unsigned long long system_ram,
-			     unsigned long long *crash_size,
-			     unsigned long long *crash_base)
+					 unsigned long long *crash_size)
  {
-	return __parse_crashkernel(cmdline, system_ram, crash_size, crash_base,
+	unsigned long long base;
+
+	return __parse_crashkernel(cmdline, 0, crash_size, &base,
  				"crashkernel=", suffix_tbl[SUFFIX_HIGH]);
  }
static int __init parse_crashkernel_low(char *cmdline,
-			     unsigned long long system_ram,
-			     unsigned long long *crash_size,
-			     unsigned long long *crash_base)
+					unsigned long long *crash_size)
  {
-	return __parse_crashkernel(cmdline, system_ram, crash_size, crash_base,
+	unsigned long long base;
+
+	return __parse_crashkernel(cmdline, 0, crash_size, &base,
  				"crashkernel=", suffix_tbl[SUFFIX_LOW]);
  }
@@ -310,12 +310,11 @@ int __init parse_crashkernel_high_low(char *cmdline,
  				      unsigned long long *low_size)
  {
  	int ret;
-	unsigned long long base;
BUG_ON(!high_size || !low_size); /* crashkernel=X,high */
-	ret = parse_crashkernel_high(cmdline, 0, high_size, &base);
+	ret = parse_crashkernel_high(cmdline, high_size);
  	if (ret)
  		return ret;
@@ -323,7 +322,7 @@ int __init parse_crashkernel_high_low(char *cmdline,
  		return -EINVAL;
/* crashkernel=Y,low */
-	ret = parse_crashkernel_low(cmdline, 0, low_size, &base);
+	ret = parse_crashkernel_low(cmdline, low_size);
  	if (ret)
  		*low_size = -1;


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