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Thomas Zimmermann 417218ae73 fbdev/ssd1307fb: Generate deferred I/O ops
Use the existing generator macros to create deferred-I/O helpers
for ssd1307fb and set them in the fb_ops structure. Functions
for damage handling on memory ranges and areas are provided by
the driver.

Ssd1307fb's implementation of fb_write writes to system memory,
so the generated code can use the respective helper internally.
This also fixes a long-standing bug where fb_write returned an
errno code instead of the number of written bytes. See the commit
message of commit 921b7383f3 ("fbdev: Return number of bytes
read or written") for more details.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230706151432.20674-9-tzimmermann@suse.de
2023-07-08 21:03:26 +02:00
arch efi: Do not include <linux/screen_info.h> from EFI header 2023-07-08 20:26:36 +02:00
block
certs
crypto
Documentation fbdev: Make support for userspace interfaces configurable 2023-06-27 09:58:51 +02:00
drivers fbdev/ssd1307fb: Generate deferred I/O ops 2023-07-08 21:03:26 +02:00
fs
include sysfb: Do not include <linux/screen_info.h> from sysfb header 2023-07-08 20:26:39 +02:00
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MAINTAINERS MAINTAINERS: Remove Laura Abbott from DMA-BUF HEAPS FRAMEWORK 2023-07-06 19:49:37 +05:30
Makefile
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.