From: Uwe Kleine-König Date: Thu, 17 Dec 2009 23:27:12 +0000 (-0800) Subject: lib/vsprintf.c: document more vsnprintf extensions X-Git-Tag: upstream/snapshot3+hdmi~16086 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8a79503aa83d0f889abc64a2fc0a020411837222;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git lib/vsprintf.c: document more vsnprintf extensions These were added in 9ac6e44 (lib/vsprintf.c: add %pU to print UUID/GUIDs) c7dabef (vsprintf: use %pR, %pr instead of %pRt, %pRf) 8a27f7c (lib/vsprintf.c: Add "%pI6c" - print pointer as compressed ipv6 address) 4aa9960 (printk: add %I4, %I6, %i4, %i6 format specifiers) dd45c9c (printk: add %pM format specifier for MAC addresses) but only added comments to pointer() not vsnprintf() that is refered to by printk's comments. Signed-off-by: Uwe Kleine-König Cc: Harvey Harrison Cc: David S. Miller Cc: Joe Perches Cc: Jens Rosenboom Cc: David S. Miller Cc: Bjorn Helgaas Cc: Jesse Barnes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/lib/vsprintf.c b/lib/vsprintf.c index 735343f..d4996cf 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -1179,7 +1179,18 @@ qualifier: * %ps output the name of a text symbol without offset * %pF output the name of a function pointer with its offset * %pf output the name of a function pointer without its offset - * %pR output the address range in a struct resource + * %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 + * %pm output a 6-byte MAC address without colons + * %pI4 print an IPv4 address without leading zeros + * %pi4 print an IPv4 address with leading zeros + * %pI6 print an IPv6 address with colons + * %pi6 print an IPv6 address without colons + * %pI6c print an IPv6 address as specified by + * http://www.ietf.org/id/draft-kawamura-ipv6-text-representation-03.txt + * %pU[bBlL] print a UUID/GUID in big or little endian using lower or upper + * case. * %n is ignored * * The return value is the number of characters which would