[PATCH v3 00/14] printf stuff for 4.5

From	Rasmus Villemoes <linux@rasmusvillemoes.dk>
Newsgroups	linux.kernel
Subject	[PATCH v3 00/14] printf stuff for 4.5
Date	2015-12-03 22:00 +0100
Message-ID	<qBJ8R-1Cs-3@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

Show all headers | View raw

I was too late for 4.4, so here's hoping to get this into 4.5.

1-3 fix a theoretical race in printing strings via %s - since we're
reusing existing code from the dentry printer, we actually also win on
code size. Ingo, can I perhaps get you to turn your "looks good to"
into an ack?

4 fixes a problem introduced by converting all bitmap formatting to go
via %pb[l] - it turns out that bitmaps with >= 1<<15 bits are actually
printed sometimes. This isn't necessarily the best fix, but the
discussion died out, so I'm proposing this for now.

5 is just a minor optimization (maybe not so much on
register-challenged arches).

6 I'm not too sure about, but maybe the bitmap problem had been
discovered sooner (it took a little over half a year to be reported)
if these had been in place.

Paranoid-me wanted me to include patch 7, but I don't have strong
feelings for it.

8-14 are minor additions to the test module (some with acks from
Kees).


Rasmus Villemoes (14):
  lib/vsprintf.c: pull out padding code from dentry_name()
  lib/vsprintf.c: move string() below widen_string()
  lib/vsprintf.c: eliminate potential race in string()
  lib/vsprintf.c: expand field_width to 24 bits
  lib/vsprintf.c: help gcc make number() smaller
  lib/vsprintf.c: warn about too large precisions and field widths
  lib/kasprintf.c: add sanity check to kvasprintf
  lib/test_printf.c: don't BUG
  lib/test_printf.c: check for out-of-bound writes
  lib/test_printf.c: test precision quirks
  lib/test_printf.c: add a few number() tests
  lib/test_printf.c: account for kvasprintf tests
  lib/test_printf.c: add test for large bitmaps
  lib/test_printf.c: test dentry printing

 lib/kasprintf.c   |  10 +--
 lib/test_printf.c | 121 ++++++++++++++++++++++++++++++----
 lib/vsprintf.c    | 193 +++++++++++++++++++++++++++++++-----------------------
 3 files changed, 226 insertions(+), 98 deletions(-)

-- 
2.6.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

[PATCH v3 00/14] printf stuff for 4.5 Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2015-12-03 22:00 +0100
  [PATCH v3 01/14] lib/vsprintf.c: pull out padding code from dentry_name() Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2015-12-03 22:00 +0100
  Re: [PATCH v3 04/14] lib/vsprintf.c: expand field_width to 24 bits Joe Perches <joe@perches.com> - 2015-12-03 22:00 +0100
    Re: [PATCH v3 04/14] lib/vsprintf.c: expand field_width to 24 bits Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2015-12-03 22:40 +0100
      Re: [PATCH v3 04/14] lib/vsprintf.c: expand field_width to 24 bits Andrew Morton <akpm@linux-foundation.org> - 2015-12-04 00:40 +0100
        Re: [PATCH v3 04/14] lib/vsprintf.c: expand field_width to 24 bits Joe Perches <joe@perches.com> - 2015-12-04 01:10 +0100
          Re: [PATCH v3 04/14] lib/vsprintf.c: expand field_width to 24 bits Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2015-12-04 10:10 +0100
        Re: [PATCH v3 04/14] lib/vsprintf.c: expand field_width to 24 bits Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2015-12-04 10:10 +0100
      Re: [PATCH v3 04/14] lib/vsprintf.c: expand field_width to 24 bits Joe Perches <joe@perches.com> - 2015-12-04 00:50 +0100
  [PATCH v3 08/14] lib/test_printf.c: don't BUG Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2015-12-03 22:00 +0100
  [PATCH v3 03/14] lib/vsprintf.c: eliminate potential race in string() Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2015-12-03 22:00 +0100
  [PATCH v3 06/14] lib/vsprintf.c: warn about too large precisions and field widths Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2015-12-03 22:00 +0100
  [PATCH v3 09/14] lib/test_printf.c: check for out-of-bound writes Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2015-12-03 22:00 +0100
  [PATCH v3 02/14] lib/vsprintf.c: move string() below widen_string() Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2015-12-03 22:00 +0100
  [PATCH v3 14/14] lib/test_printf.c: test dentry printing Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2015-12-03 22:00 +0100
    Re: [PATCH v3 14/14] lib/test_printf.c: test dentry printing Andrew Morton <akpm@linux-foundation.org> - 2015-12-04 01:20 +0100
      Re: [PATCH v3 14/14] lib/test_printf.c: test dentry printing Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2015-12-04 09:20 +0100
        Re: [PATCH v3 14/14] lib/test_printf.c: test dentry printing Andrew Morton <akpm@linux-foundation.org> - 2015-12-04 09:50 +0100
  [PATCH v3 04/14] lib/vsprintf.c: expand field_width to 24 bits Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2015-12-03 22:00 +0100

csiph-web