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iov: Introduce a new file for helpers around iovs, add iov_from_buf()

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The virtio-net code uses iov_fill() which fills an iov from a linear
buffer. The virtio-serial-bus code does something similar in an
open-coded function.

Create a new iov.c file that has iov_from_buf().

Convert virtio-net and virtio-serial-bus over to use this functionality.
virtio-net used ints to hold sizes, the new function is going to use
size_t types.

Later commits will add the opposite functionality -- going from an iov
to a linear buffer.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Amit Shah 2010-04-27 18:04:05 +05:30 • committed by Anthony Liguori
parent 3ecb45f893
commit e4d5639dbb
6 changed files with 62 additions and 25 deletions
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Makefile.objs
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@ -100,6 +100,7 @@ common-obj-y += keymaps.o
common-obj-$(CONFIG_SDL) += sdl.o sdl_zoom.o x_keymap.o
common-obj-$(CONFIG_CURSES) += curses.o
common-obj-y += vnc.o acl.o d3des.o
common-obj-y += iov.o
common-obj-$(CONFIG_VNC_TLS) += vnc-tls.o vnc-auth-vencrypt.o
common-obj-$(CONFIG_VNC_SASL) += vnc-auth-sasl.o
common-obj-$(CONFIG_COCOA) += cocoa.o