From: Kent Overstreet <kent.overstreet@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Kent Overstreet <kent.overstreet@gmail.com>,
pmladek@suse.com, rostedt@goodmis.org
Subject: [PATCH v3 16/33] vsprintf: Refactor fourcc_string()
Date: Sat, 4 Jun 2022 15:30:25 -0400 [thread overview]
Message-ID: <20220604193042.1674951-17-kent.overstreet@gmail.com> (raw)
In-Reply-To: <20220604193042.1674951-1-kent.overstreet@gmail.com>
- We're attempting to consolidate printf_spec and format string
handling in the top level vpr_buf(), this changes fourcc_string() to
not take printf_spec
- With the new printbuf helpers there's no need to use a separate stack
allocated buffer, so this patch deletes it.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
---
lib/vsprintf.c | 27 ++++++++++++---------------
1 file changed, 12 insertions(+), 15 deletions(-)
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 4256b1d3a5..49565e0dc4 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -1726,17 +1726,15 @@ void netdev_bits(struct printbuf *out, const void *addr,
static noinline_for_stack
void fourcc_string(struct printbuf *out, const u32 *fourcc,
- struct printf_spec spec, const char *fmt)
+ const char *fmt)
{
- char output_buf[sizeof("0123 little-endian (0x01234567)")];
- struct printbuf output = PRINTBUF_EXTERN(output_buf, sizeof(output_buf));
unsigned int i;
u32 orig, val;
if (fmt[1] != 'c' || fmt[2] != 'c')
- return error_string_spec(out, "(%p4?)", spec);
+ return error_string(out, "(%p4?)");
- if (check_pointer_spec(out, fourcc, spec))
+ if (check_pointer(out, fourcc))
return;
orig = get_unaligned(fourcc);
@@ -1746,18 +1744,16 @@ void fourcc_string(struct printbuf *out, const u32 *fourcc,
unsigned char c = val >> (i * 8);
/* Print non-control ASCII characters as-is, dot otherwise */
- prt_char(&output, isascii(c) && isprint(c) ? c : '.');
+ prt_char(out, isascii(c) && isprint(c) ? c : '.');
}
- prt_char(&output, ' ');
- prt_str(&output, orig & BIT(31) ? "big-endian" : "little-endian");
-
- prt_char(&output, ' ');
- prt_char(&output, '(');
- special_hex_number(&output, orig, sizeof(u32));
- prt_char(&output, ')');
+ prt_char(out, ' ');
+ prt_str(out, orig & BIT(31) ? "big-endian" : "little-endian");
- string_spec(out, output_buf, spec);
+ prt_char(out, ' ');
+ prt_char(out, '(');
+ special_hex_number(out, orig, sizeof(u32));
+ prt_char(out, ')');
}
static noinline_for_stack
@@ -2361,7 +2357,8 @@ void pointer(struct printbuf *out, const char *fmt,
netdev_bits(out, ptr, fmt);
return do_width_precision(out, prev_pos, spec);
case '4':
- return fourcc_string(out, ptr, spec, fmt);
+ fourcc_string(out, ptr, fmt);
+ return do_width_precision(out, prev_pos, spec);
case 'a':
address_val(out, ptr, fmt);
return do_width_precision(out, prev_pos, spec);
--
2.36.0
next prev parent reply other threads:[~2022-06-04 19:32 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-04 19:30 [PATCH v3 00/33] Printbufs Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 01/33] lib/printbuf: New data structure for printing strings Kent Overstreet
2022-06-09 13:55 ` Petr Mladek
2022-06-04 19:30 ` [PATCH v3 02/33] lib/string_helpers: Convert string_escape_mem() to printbuf Kent Overstreet
2022-06-09 14:25 ` Petr Mladek
2022-06-09 17:53 ` Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 03/33] vsprintf: Convert " Kent Overstreet
2022-06-15 9:09 ` Rasmus Villemoes
2022-06-15 18:44 ` Kent Overstreet
2022-06-17 8:59 ` Rasmus Villemoes
2022-06-04 19:30 ` [PATCH v3 04/33] lib/hexdump: " Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 05/33] vsprintf: %pf(%p) Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 06/33] lib/string_helpers: string_get_size() now returns characters wrote Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 07/33] lib/printbuf: Heap allocation Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 08/33] lib/printbuf: Tabstops, indenting Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 09/33] lib/printbuf: Unit specifiers Kent Overstreet
2022-06-05 1:06 ` Joe Perches
2022-06-04 19:30 ` [PATCH v3 10/33] lib/pretty-printers: prt_string_option(), prt_bitflags() Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 11/33] vsprintf: Improve number() Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 12/33] vsprintf: prt_u64_minwidth(), prt_u64() Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 13/33] test_printf: Drop requirement that sprintf not write past nul Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 14/33] vsprintf: Start consolidating printf_spec handling Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 15/33] vsprintf: Refactor resource_string() Kent Overstreet
2022-06-04 19:30 ` Kent Overstreet [this message]
2022-06-04 19:30 ` [PATCH v3 17/33] vsprintf: Refactor ip_addr_string() Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 18/33] vsprintf: Refactor mac_address_string() Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 19/33] vsprintf: time_and_date() no longer takes printf_spec Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 20/33] vsprintf: flags_string() " Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 21/33] vsprintf: Refactor device_node_string, fwnode_string Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 22/33] vsprintf: Refactor hex_string, bitmap_string_list, bitmap_string Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 23/33] Input/joystick/analog: Convert from seq_buf -> printbuf Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 24/33] mm/memcontrol.c: Convert to printbuf Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 25/33] clk: tegra: bpmp: " Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 26/33] tools/testing/nvdimm: " Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 27/33] powerpc: " Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 28/33] x86/resctrl: " Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 29/33] PCI/P2PDMA: " Kent Overstreet
2022-06-08 21:11 ` Bjorn Helgaas
2022-06-08 23:24 ` Kent Overstreet
2022-06-08 23:34 ` Logan Gunthorpe
2022-06-08 23:40 ` Bjorn Helgaas
2022-06-04 19:30 ` [PATCH v3 30/33] tracing: trace_events_synth: " Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 31/33] d_path: prt_path() Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 32/33] tracing: Convert to printbuf Kent Overstreet
2022-06-04 19:30 ` [PATCH v3 33/33] Delete seq_buf Kent Overstreet
2022-06-05 16:21 ` [PATCH v3 00/33] Printbufs Steven Rostedt
2022-06-05 17:55 ` Kent Overstreet
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