vc_screen: extract vcs_write_buf

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This is the counterpart of the previous patch: here, we extract buffer
writing with attributes from vcs_write.

Now, there is no need for org to be initialized to NULL. The org0
check before update_region() confuses compilers, so check org instead.
It provides the same semantics. And it also eliminates the need for
initialization of org0.

We switch the branches of the attr 'if' too, as the inversion brings only
confusion now.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20200818085706.12163-8-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Jiri Slaby 2020-08-18 10:56:58 +02:00 • committed by Greg Kroah-Hartman

parent 9e6363784e

commit 95e0d57fd4

1 changed files with 92 additions and 76 deletions

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drivers/tty/vt/vc_screen.c

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