On 08/03/2017 06:18 PM, Prarit Bhargava wrote:
+ /*
+ * Only allow enabling and disabling of the current printk_time
+ * setting. Changing it from one setting to another confuses
+ * userspace.
+ */
We should allow a debug option to permit this (but that can be a
followup patch, do not stall this one on a wish-list item).
+ if (printk_time_setting == PRINTK_TIME_DISABLE) {
+ printk_time_setting = _printk_time;
+ } else if ((printk_time_setting != _printk_time) &&
+ (_printk_time != 0)) {
+ pr_warn("printk: timestamp can only be set to 0(disabled) or %d(%s) ",
trailing space? why did checkpatch.pl not find this for you? should be
trailing newline.
+ printk_time_setting,
+ printk_time_str[printk_time_setting]);
+ return -EINVAL;
+ }
+
+ printk_time = _printk_time;
+ pr_info("printk: timestamp set to %d(%s).",
missing trailing newline
+ printk_time, printk_time_str[printk_time]);
+ return 0;
+}
-- Mark
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