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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2021-05-11 17:39:55 +0200
committerPetr Mladek <pmladek@suse.com>2021-05-17 12:01:26 +0200
commit20bc8c1e972f29afcac85e524e430c11a6df5f58 (patch)
treefc428e2db30dba9fcc042df0862d88824b754b94 /Documentation/core-api
parentMerge tag 'printk-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/... (diff)
downloadlinux-20bc8c1e972f29afcac85e524e430c11a6df5f58.tar.xz
linux-20bc8c1e972f29afcac85e524e430c11a6df5f58.zip
lib/vsprintf: Allow to override ISO 8601 date and time separator
ISO 8601 defines 'T' as a separator between date and time. Though, some ABIs use time and date with ' ' (space) separator instead. Add a flavour to the %pt specifier to override default separator. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org> Signed-off-by: Petr Mladek <pmladek@suse.com> Link: https://lore.kernel.org/r/20210511153958.34527-1-andriy.shevchenko@linux.intel.com
Diffstat (limited to 'Documentation/core-api')
-rw-r--r--Documentation/core-api/printk-formats.rst7
1 files changed, 6 insertions, 1 deletions
diff --git a/Documentation/core-api/printk-formats.rst b/Documentation/core-api/printk-formats.rst
index 9be6de402cb9..7b6bfd8a78d3 100644
--- a/Documentation/core-api/printk-formats.rst
+++ b/Documentation/core-api/printk-formats.rst
@@ -514,9 +514,10 @@ Time and date
::
%pt[RT] YYYY-mm-ddTHH:MM:SS
+ %pt[RT]s YYYY-mm-dd HH:MM:SS
%pt[RT]d YYYY-mm-dd
%pt[RT]t HH:MM:SS
- %pt[RT][dt][r]
+ %pt[RT][dt][r][s]
For printing date and time as represented by::
@@ -528,6 +529,10 @@ in human readable format.
By default year will be incremented by 1900 and month by 1.
Use %pt[RT]r (raw) to suppress this behaviour.
+The %pt[RT]s (space) will override ISO 8601 separator by using ' ' (space)
+instead of 'T' (Capital T) between date and time. It won't have any effect
+when date or time is omitted.
+
Passed by reference.
struct clk