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authorHeiko Carstens <heiko.carstens@de.ibm.com>2017-03-09 09:51:22 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2017-03-22 08:29:05 +0100
commit9b62330fa06346da3399a3799f67822fa081a8fe (patch)
treee023887f89cf5ce678e0f30f8174b2c6eb96f0f2 /arch/s390/include/asm/bitops.h
parents390: get rid of superfluous __GFP_REPEAT (diff)
downloadlinux-dev-9b62330fa06346da3399a3799f67822fa081a8fe.tar.xz
linux-dev-9b62330fa06346da3399a3799f67822fa081a8fe.zip
s390/bitops: remove outdated comment
The s390 specific little endian bitop macros are gone since a long time. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/bitops.h')
-rw-r--r--arch/s390/include/asm/bitops.h8
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index e7a185407182..99902b7b9f0c 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -15,14 +15,6 @@
* end up numbered:
* |63..............0|127............64|191...........128|255...........192|
*
- * There are a few little-endian macros used mostly for filesystem
- * bitmaps, these work on similar bit array layouts, but byte-oriented:
- * |7...0|15...8|23...16|31...24|39...32|47...40|55...48|63...56|
- *
- * The main difference is that bit 3-5 in the bit number field needs to be
- * reversed compared to the big-endian bit fields. This can be achieved by
- * XOR with 0x38.
- *
* We also have special functions which work with an MSB0 encoding.
* The bits are numbered:
* |0..............63|64............127|128...........191|192...........255|