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Date: Tue, 7 Feb 2012 09:11:41 -0500 From: Adam Jackson <ajax@...hat.com> To: linux-kernel@...r.kernel.org Cc: arnd@...db.de, gregkh@...uxfoundation.org Subject: [PATCH 2/2] char/mem: Schedule /dev/port for removal Signed-off-by: Adam Jackson <ajax@...hat.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@...el.com> Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.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@...hat.com> -- 1.7.7.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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