mbox series

[v2,0/9] IDE: replace printfs with tracing

Message ID 20170829204934.9039-1-jsnow@redhat.com
Headers show
Series IDE: replace printfs with tracing | expand

Message

John Snow Aug. 29, 2017, 8:49 p.m. UTC 
Wherever possible, replace all printfs with proper tracing.
In most places I've tried to do a straight replacement, but
forthcoming patches may calibrate the tracing to be a little nicer.

For now, it's nice to just remove the all-or-nothing tracing.

For V2, I opted to leave in the nearly redundant tracers for now
with their individual names so that they can be targeted individually.

Key:
[----] : patches are identical
[####] : number of functional differences between upstream/downstream patch
[down] : patch is downstream-only
The flags [FC] indicate (F)unctional and (C)ontextual differences, respectively

001/9:[0020] [FC] 'IDE: replace DEBUG_IDE with tracing system'
002/9:[0004] [FC] 'IDE: Add register hints to tracing'
003/9:[0005] [FC] 'IDE: add tracing for data ports'
004/9:[0004] [FC] 'ATAPI: Replace DEBUG_IDE_ATAPI with tracing events'
005/9:[0013] [FC] 'IDE: replace DEBUG_AIO with trace events'
006/9:[0007] [FC] 'AHCI: Replace DPRINTF with trace-events'
007/9:[----] [--] 'AHCI: Rework IRQ constants'
008/9:[0001] [FC] 'AHCI: pretty-print FIS to buffer instead of stderr'
009/9:[----] [--] 'AHCI: remove DPRINTF macro'

===
v2:
===

01: Rehabilitate commit message.
    Fix switch () statement spacing. (Eric)
    Adjust spacing in ide-tracing file to maintain columns.
    Change filename orderings in trace-events. (Eric)
    Fixed newline issue in trace-events. (Eric)

02: Context / Added R-B.

03: Added trace-events items to appropriate patch (removed from 04) (Eric)
    Added a verbose warning for data tracers (Eric)

04: Shifted items to 03 (Eric)
    Fixed newline issue (Eric)

05: Changed __END to __COUNT (Philippe)
    Removed __BEGIN enumerator (Philippe)

06: Added more information to unknown write (Philippe)

08: Context (Entropy)

John Snow (9):
  IDE: replace DEBUG_IDE with tracing system
  IDE: Add register hints to tracing
  IDE: add tracing for data ports
  ATAPI: Replace DEBUG_IDE_ATAPI with tracing events
  IDE: replace DEBUG_AIO with trace events
  AHCI: Replace DPRINTF with trace-events
  AHCI: Rework IRQ constants
  AHCI: pretty-print FIS to buffer instead of stderr
  AHCI: remove DPRINTF macro

 Makefile.objs             |   1 +
 hw/ide/ahci.c             | 269 ++++++++++++++++++++++++++--------------------
 hw/ide/ahci_internal.h    |  44 ++++++--
 hw/ide/atapi.c            |  69 +++++-------
 hw/ide/cmd646.c           |  10 +-
 hw/ide/core.c             | 178 +++++++++++++++++++-----------
 hw/ide/pci.c              |  17 +--
 hw/ide/piix.c             |  11 +-
 hw/ide/trace-events       | 111 +++++++++++++++++++
 hw/ide/via.c              |  10 +-
 include/hw/ide/internal.h |   8 +-
 11 files changed, 456 insertions(+), 272 deletions(-)
 create mode 100644 hw/ide/trace-events

Comments

no-reply@patchew.org Aug. 29, 2017, 9:14 p.m. UTC | #1 
Hi,

This series seems to have some coding style problems. See output below for
more information:

Message-id: 20170829204934.9039-1-jsnow@redhat.com
Subject: [Qemu-devel] [PATCH v2 0/9] IDE: replace printfs with tracing
Type: series

=== TEST SCRIPT BEGIN ===
#!/bin/bash

BASE=base
n=1
total=$(git log --oneline $BASE.. | wc -l)
failed=0

git config --local diff.renamelimit 0
git config --local diff.renames True

commits="$(git log --format=%H --reverse $BASE..)"
for c in $commits; do
    echo "Checking PATCH $n/$total: $(git log -n 1 --format=%s $c)..."
    if ! git show $c --format=email | ./scripts/checkpatch.pl --mailback -; then
        failed=1
        echo
    fi
    n=$((n+1))
done

exit $failed
=== TEST SCRIPT END ===

Updating 3c8cf5a9c21ff8782164d1def7f44bd888713384
From https://github.com/patchew-project/qemu
 * [new tag]               patchew/20170829204934.9039-1-jsnow@redhat.com -> patchew/20170829204934.9039-1-jsnow@redhat.com
Switched to a new branch 'test'
317562672d AHCI: remove DPRINTF macro
5111f245b5 AHCI: pretty-print FIS to buffer instead of stderr
fd94464a09 AHCI: Rework IRQ constants
a2cbc7a1b9 AHCI: Replace DPRINTF with trace-events
7617a100a4 IDE: replace DEBUG_AIO with trace events
d0ab9d9ae8 ATAPI: Replace DEBUG_IDE_ATAPI with tracing events
ec07b9f487 IDE: add tracing for data ports
ad50ebd27b IDE: Add register hints to tracing
99af2ced97 IDE: replace DEBUG_IDE with tracing system

=== OUTPUT BEGIN ===
Checking PATCH 1/9: IDE: replace DEBUG_IDE with tracing system...
ERROR: spaces required around that '|' (ctx:VxV)
#143: FILE: hw/ide/core.c:1197:
+    if (reg_num != 7 && (s->status & (BUSY_STAT|DRQ_STAT))) {
                                                ^

total: 1 errors, 0 warnings, 337 lines checked

Your patch has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.

Checking PATCH 2/9: IDE: Add register hints to tracing...
Checking PATCH 3/9: IDE: add tracing for data ports...
Checking PATCH 4/9: ATAPI: Replace DEBUG_IDE_ATAPI with tracing events...
Checking PATCH 5/9: IDE: replace DEBUG_AIO with trace events...
Checking PATCH 6/9: AHCI: Replace DPRINTF with trace-events...
ERROR: Hex numbers must be prefixed with '0x'
#540: FILE: hw/ide/trace-events:91:
+handle_reg_h2d_fis_pmp(void *s, int port, char b0, char b1, char b2) "ahci(%p)[%d]: Port Multiplier not supported, FIS: 0x%02x-%02x-%02x"

ERROR: Hex numbers must be prefixed with '0x'
#541: FILE: hw/ide/trace-events:92:
+handle_reg_h2d_fis_res(void *s, int port, char b0, char b1, char b2) "ahci(%p)[%d]: Reserved flags set in H2D Register FIS, FIS: 0x%02x-%02x-%02x"

ERROR: Hex numbers must be prefixed with '0x'
#547: FILE: hw/ide/trace-events:98:
+handle_cmd_unhandled_fis(void *s, int port, uint8_t b0, uint8_t b1, uint8_t b2) "ahci(%p)[%d]: unhandled FIS type. cmd_fis: 0x%02x-%02x-%02x"

total: 3 errors, 0 warnings, 496 lines checked

Your patch has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.

Checking PATCH 7/9: AHCI: Rework IRQ constants...
Checking PATCH 8/9: AHCI: pretty-print FIS to buffer instead of stderr...
ERROR: Use g_assert or g_assert_not_reached
#35: FILE: hw/ide/ahci.c:658:
+    g_assert_cmpint(cmd_len, <=, 0x100);

total: 1 errors, 0 warnings, 86 lines checked

Your patch has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.

Checking PATCH 9/9: AHCI: remove DPRINTF macro...
=== OUTPUT END ===

Test command exited with code: 1


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Stefan Hajnoczi Aug. 30, 2017, 9:21 a.m. UTC | #2 
On Tue, Aug 29, 2017 at 04:49:25PM -0400, John Snow wrote:
> Wherever possible, replace all printfs with proper tracing.
> In most places I've tried to do a straight replacement, but
> forthcoming patches may calibrate the tracing to be a little nicer.
> 
> For now, it's nice to just remove the all-or-nothing tracing.
> 
> For V2, I opted to leave in the nearly redundant tracers for now
> with their individual names so that they can be targeted individually.

Looks good.  I left a comment on one patch.