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-rw-r--r--Documentation/printk-formats.txt1
-rw-r--r--lib/vsprintf.c5
2 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
index 7561d7ed8e11..8ffb274367c7 100644
--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -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
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 852f89f590a6..9287e2549936 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -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