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Subject[PATCH 2/2] char/mem: Schedule /dev/port for removal
Date
Signed-off-by: Adam Jackson <ajax@redhat.com>
---
Documentation/feature-removal-schedule.txt | 13 +++++++++++++
1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index a0ffac0..c8504f0 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -524,3 +524,16 @@ Files: arch/arm/mach-at91/at91cap9.c
Why: The code is not actively maintained and platforms are now hard to find.
Who: Nicolas Ferre <nicolas.ferre@atmel.com>
Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
+
+----------------------------
+
+What: /dev/port
+When: February 2013
+Files: drivers/char/mem.c
+Why: This interface does not match either ISA or PCI semantics for I/O
+ port access. Regardless of the cycle size requested by userspace
+ /dev/port will emit byte-wide reads or writes, which is wrong
+ since devices may not allow byte access or may have side effects
+ when doing byte access to word or dword registers. Use /dev/io
+ instead.
+Who: Adam Jackson <ajax@redhat.com>
--
1.7.7.6


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