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SubjectRe: [PATCH] tracing: fix trace_buf_size boot option
> -	ret = strict_strtoul(str, 0, &buf_size);
> + buf_size = memparse(str, &opt);

Sorry, there's a typo: s/opt/str. I forgot to commit the
change after fixing it.


========================


[PATCH] tracing: fix trace_buf_size boot option

We should be able to specify [KMG] when setting trace_buf_size
boot option, as documented in kernel-parameters.txt

[ Impact: allow to specify [KMG] in trace_buf_size boot option ]

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
---
Documentation/kernel-parameters.txt | 3 ++-
kernel/trace/trace.c | 5 ++---
2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 256a650..421f1e6 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2446,7 +2446,8 @@ and is between 256 and 4096 characters. It is defined in the file

tp720= [HW,PS2]

- trace_buf_size=nn[KMG] [ftrace] will set tracing buffer size.
+ trace_buf_size=nn[KMG]
+ [FTRACE] will set tracing buffer size.

trix= [HW,OSS] MediaTrix AudioTrix Pro
Format:
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 3bb3100..3aa0a0d 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -284,13 +284,12 @@ void trace_wake_up(void)
static int __init set_buf_size(char *str)
{
unsigned long buf_size;
- int ret;

if (!str)
return 0;
- ret = strict_strtoul(str, 0, &buf_size);
+ buf_size = memparse(str, &str);
/* nr_entries can not be zero */
- if (ret < 0 || buf_size == 0)
+ if (buf_size == 0)
return 0;
trace_buf_size = buf_size;
return 1;
--
1.5.4.rc3


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