diff options
Diffstat (limited to 'Documentation/printk-formats.txt')
| -rw-r--r-- | Documentation/printk-formats.txt | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt index 3e8cb73ac43..445ad743ec8 100644 --- a/Documentation/printk-formats.txt +++ b/Documentation/printk-formats.txt @@ -97,7 +97,7 @@ IPv4 addresses: %pI4 1.2.3.4 %pi4 001.002.003.004 - %p[Ii][hnbl] + %p[Ii]4[hnbl] For printing IPv4 dot-separated decimal addresses. The 'I4' and 'i4' specifiers result in a printed address with ('i4') or without ('I4') @@ -168,6 +168,15 @@ UUID/GUID addresses: Where no additional specifiers are used the default little endian order with lower case hex characters will be printed. +dentry names: + %pd{,2,3,4} + %pD{,2,3,4} + + For printing dentry name; if we race with d_move(), the name might be + a mix of old and new ones, but it won't oops. %pd dentry is a safer + equivalent of %s dentry->d_name.name we used to use, %pd<n> prints + n last components. %pD does the same thing for struct file. + struct va_format: %pV @@ -185,11 +194,11 @@ struct va_format: u64 SHOULD be printed with %llu/%llx, (unsigned long long): - printk("%llu", (unsigned long long)u64_var); + printk("%llu", u64_var); s64 SHOULD be printed with %lld/%llx, (long long): - printk("%lld", (long long)s64_var); + printk("%lld", s64_var); If <type> is dependent on a config option for its size (e.g., sector_t, blkcnt_t) or is architecture-dependent for its size (e.g., tcflag_t), use a |