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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-05-21 21:59:23 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-05-21 21:59:23 +0300 |
| commit | f248d687e99da6799a25bbf53ca1350b84d41077 (patch) | |
| tree | edb0b90c039e34e838329ca4d96e9888a4ebfa34 /lib/dynamic_debug.c | |
| parent | 3b2f17ad1770e51b8b4e68b5069c4f1ee477eff8 (diff) | |
| parent | 011ff616ffe8df6b86ee54d14a43c8d1a96a6325 (diff) | |
| download | linux-f248d687e99da6799a25bbf53ca1350b84d41077.tar.xz | |
Merge remote-tracking branch 'torvalds/master' into perf/urgent
To pick up more UAPI updates to sync with tools/.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'lib/dynamic_debug.c')
| -rw-r--r-- | lib/dynamic_debug.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c index 921d0a654243..641767b0dce2 100644 --- a/lib/dynamic_debug.c +++ b/lib/dynamic_debug.c @@ -586,13 +586,11 @@ static int remaining(int wrote) return 0; } -static char *dynamic_emit_prefix(const struct _ddebug *desc, char *buf) +static char *__dynamic_emit_prefix(const struct _ddebug *desc, char *buf) { int pos_after_tid; int pos = 0; - *buf = '\0'; - if (desc->flags & _DPRINTK_FLAGS_INCL_TID) { if (in_interrupt()) pos += snprintf(buf + pos, remaining(pos), "<intr> "); @@ -618,11 +616,18 @@ static char *dynamic_emit_prefix(const struct _ddebug *desc, char *buf) return buf; } +static inline char *dynamic_emit_prefix(struct _ddebug *desc, char *buf) +{ + if (unlikely(desc->flags & _DPRINTK_FLAGS_INCL_ANY)) + return __dynamic_emit_prefix(desc, buf); + return buf; +} + void __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...) { va_list args; struct va_format vaf; - char buf[PREFIX_SIZE]; + char buf[PREFIX_SIZE] = ""; BUG_ON(!descriptor); BUG_ON(!fmt); @@ -655,7 +660,7 @@ void __dynamic_dev_dbg(struct _ddebug *descriptor, if (!dev) { printk(KERN_DEBUG "(NULL device *): %pV", &vaf); } else { - char buf[PREFIX_SIZE]; + char buf[PREFIX_SIZE] = ""; dev_printk_emit(LOGLEVEL_DEBUG, dev, "%s%s %s: %pV", dynamic_emit_prefix(descriptor, buf), @@ -684,7 +689,7 @@ void __dynamic_netdev_dbg(struct _ddebug *descriptor, vaf.va = &args; if (dev && dev->dev.parent) { - char buf[PREFIX_SIZE]; + char buf[PREFIX_SIZE] = ""; dev_printk_emit(LOGLEVEL_DEBUG, dev->dev.parent, "%s%s %s %s%s: %pV", @@ -720,7 +725,7 @@ void __dynamic_ibdev_dbg(struct _ddebug *descriptor, vaf.va = &args; if (ibdev && ibdev->dev.parent) { - char buf[PREFIX_SIZE]; + char buf[PREFIX_SIZE] = ""; dev_printk_emit(LOGLEVEL_DEBUG, ibdev->dev.parent, "%s%s %s %s: %pV", @@ -915,7 +920,6 @@ static const struct seq_operations ddebug_proc_seqops = { static int ddebug_proc_open(struct inode *inode, struct file *file) { - vpr_info("called\n"); return seq_open_private(file, &ddebug_proc_seqops, sizeof(struct ddebug_iter)); } |