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lib/vsprintf: update documentation to cover all of %p[Mm][FR]

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Acked-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andy Shevchenko 2012-10-04 17:12:33 -07:00 committed by Linus Torvalds
parent f40005165f
commit 7c59154e75
2 changed files with 5 additions and 1 deletions
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1
Documentation/printk-formats.txt
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@ -69,6 +69,7 @@ MAC/FDDI addresses:
%pMR 05:04:03:02:01:00
%pMF 00-01-02-03-04-05
%pm 000102030405
%pmR 050403020100
For printing 6-byte MAC/FDDI addresses in hex notation. The 'M' and 'm'
specifiers result in a printed address with ('M') or without ('m') byte

5
lib/vsprintf.c
View file

@ -987,7 +987,7 @@ int kptr_restrict __read_mostly;
* - 'm' For a 6-byte MAC address, it prints the hex address without colons
* - 'MF' For a 6-byte MAC FDDI address, it prints the address
* with a dash-separated hex notation
* - '[mM]R For a 6-byte MAC address, Reverse order (Bluetooth)
* - '[mM]R' For a 6-byte MAC address, Reverse order (Bluetooth)
* - 'I' [46] for IPv4/IPv6 addresses printed in the usual way
* IPv4 uses dot-separated decimal without leading 0's (1.2.3.4)
* IPv6 uses colon separated network-order 16 bit hex with leading 0's
@ -1338,7 +1338,10 @@ qualifier:
* %pR output the address range in a struct resource with decoded flags
* %pr output the address range in a struct resource with raw flags
* %pM output a 6-byte MAC address with colons
* %pMR output a 6-byte MAC address with colons in reversed order
* %pMF output a 6-byte MAC address with dashes
* %pm output a 6-byte MAC address without colons
* %pmR output a 6-byte MAC address without colons in reversed order
* %pI4 print an IPv4 address without leading zeros
* %pi4 print an IPv4 address with leading zeros
* %pI6 print an IPv6 address with colons