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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2021-05-11 17:39:55 +0200 |
|---|---|---|
| committer | Petr Mladek <pmladek@suse.com> | 2021-05-17 12:01:26 +0200 |
| commit | 20bc8c1e972f29afcac85e524e430c11a6df5f58 (patch) | |
| tree | fc428e2db30dba9fcc042df0862d88824b754b94 /lib/vsprintf.c | |
| parent | Merge tag 'printk-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/... (diff) | |
| download | linux-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 'lib/vsprintf.c')
| -rw-r--r-- | lib/vsprintf.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/lib/vsprintf.c b/lib/vsprintf.c index 6c56c62fd9a5..8d5142ae742e 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -1798,7 +1798,8 @@ char *rtc_str(char *buf, char *end, const struct rtc_time *tm, struct printf_spec spec, const char *fmt) { bool have_t = true, have_d = true; - bool raw = false; + bool raw = false, iso8601_separator = true; + bool found = true; int count = 2; if (check_pointer(&buf, end, tm, spec)) @@ -1815,14 +1816,25 @@ char *rtc_str(char *buf, char *end, const struct rtc_time *tm, break; } - raw = fmt[count] == 'r'; + do { + switch (fmt[count++]) { + case 'r': + raw = true; + break; + case 's': + iso8601_separator = false; + break; + default: + found = false; + break; + } + } while (found); if (have_d) buf = date_str(buf, end, tm, raw); if (have_d && have_t) { - /* Respect ISO 8601 */ if (buf < end) - *buf = 'T'; + *buf = iso8601_separator ? 'T' : ' '; buf++; } if (have_t) @@ -2261,7 +2273,7 @@ early_param("no_hash_pointers", no_hash_pointers_enable); * - 'd[234]' For a dentry name (optionally 2-4 last components) * - 'D[234]' Same as 'd' but for a struct file * - 'g' For block_device name (gendisk + partition number) - * - 't[RT][dt][r]' For time and date as represented by: + * - 't[RT][dt][r][s]' For time and date as represented by: * R struct rtc_time * T time64_t * - 'C' For a clock, it prints the name (Common Clock Framework) or address |