Andrew Jeffery 9b5fcb15be fsi: core: Fix small accesses and unaligned offsets via sysfs ... [ Upstream commit 9f4c2b516b ] Subtracting the offset delta from four-byte alignment lead to wrapping of the requested length where `count` is less than `off`. Generalise the length handling to enable and optimise aligned access sizes for all offset and size combinations. The new formula produces the following results for given offset and count values: offset count | length --------------+------- 0 1 | 1 0 2 | 2 0 3 | 2 0 4 | 4 0 5 | 4 1 1 | 1 1 2 | 1 1 3 | 1 1 4 | 1 1 5 | 1 2 1 | 1 2 2 | 2 2 3 | 2 2 4 | 2 2 5 | 2 3 1 | 1 3 2 | 1 3 3 | 1 3 4 | 1 3 5 | 1 We might need something like this for the cfam chardevs as well, for example we don't currently implement any alignment restrictions / handling in the hardware master driver. Signed-off-by: Andrew Jeffery <andrew@aj.id.au> Signed-off-by: Joel Stanley <joel@jms.id.au> Link: https://lore.kernel.org/r/20191108051945.7109-6-joel@jms.id.au Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2019-12-31 16:45:09 +01:00
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Kconfig	…
Makefile	…
cf-fsi-fw.h	…
fsi-core.c	fsi: core: Fix small accesses and unaligned offsets via sysfs	2019-12-31 16:45:09 +01:00
fsi-master-ast-cf.c	…
fsi-master-gpio.c	…
fsi-master-hub.c	…
fsi-master.h	…
fsi-occ.c	…
fsi-sbefifo.c	fsi: sbefifo: Don't fail operations when in SBE IPL state	2019-07-03 21:17:11 +02:00
fsi-scom.c	fsi: scom: Don't abort operations for minor errors	2019-08-28 22:59:18 +02:00