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Printk changes for 5.8

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Merge tag 'printk-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux

Pull printk updates from Petr Mladek:

 - Benjamin Herrenschmidt solved a problem with non-matched console
   aliases by first checking consoles defined on the command line. It is
   a more conservative approach than the previous attempts.

 - Benjamin also made sure that the console accessible via /dev/console
   always has CON_CONSDEV flag.

 - Andy Shevchenko added the %ptT modifier for printing struct time64_t.
   It extends the existing %ptR handling for struct rtc_time.

 - Bruno Meneguele fixed /dev/kmsg error value returned by unsupported
   SEEK_CUR.

 - Tetsuo Handa removed unused pr_cont_once().

... and a few small fixes.

* tag 'printk-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
  printk: Remove pr_cont_once()
  printk: handle blank console arguments passed in.
  kernel/printk: add kmsg SEEK_CUR handling
  printk: Fix a typo in comment "interator"->"iterator"
  usb: pulse8-cec: Switch to use %ptT
  ARM: bcm2835: Switch to use %ptT
  lib/vsprintf: Print time64_t in human readable format
  lib/vsprintf: update comment about simple_strto<foo>() functions
  printk: Correctly set CON_CONSDEV even when preferred console was not registered
  printk: Fix preferred console selection with multiple matches
  printk: Move console matching logic into a separate function
  printk: Convert a use of sprintf to snprintf in console_unlock
This commit is contained in:
Linus Torvalds 2020-06-01 12:13:30 -07:00
commit ca1f5df23f
10 changed files with 163 additions and 85 deletions
Download patch file Download diff file Expand all files Collapse all files

13
lib/test_printf.c
View file

@ -494,7 +494,7 @@ struct_va_format(void)
}
static void __init
struct_rtc_time(void)
time_and_date(void)
{
/* 1543210543 */
const struct rtc_time tm = {
@ -505,14 +505,21 @@ struct_rtc_time(void)
.tm_mon = 10,
.tm_year = 118,
};
/* 2019-01-04T15:32:23 */
time64_t t = 1546615943;
test("(%ptR?)", "%pt", &tm);
test("(%pt?)", "%pt", &tm);
test("2018-11-26T05:35:43", "%ptR", &tm);
test("0118-10-26T05:35:43", "%ptRr", &tm);
test("05:35:43|2018-11-26", "%ptRt|%ptRd", &tm, &tm);
test("05:35:43|0118-10-26", "%ptRtr|%ptRdr", &tm, &tm);
test("05:35:43|2018-11-26", "%ptRttr|%ptRdtr", &tm, &tm);
test("05:35:43 tr|2018-11-26 tr", "%ptRt tr|%ptRd tr", &tm, &tm);
test("2019-01-04T15:32:23", "%ptT", &t);
test("0119-00-04T15:32:23", "%ptTr", &t);
test("15:32:23|2019-01-04", "%ptTt|%ptTd", &t, &t);
test("15:32:23|0119-00-04", "%ptTtr|%ptTdr", &t, &t);
}
static void __init
@ -678,7 +685,7 @@ test_pointer(void)
uuid();
dentry();
struct_va_format();
struct_rtc_time();
time_and_date();
struct_clk();
bitmap();
netdev_features();