Revision 27de809a3d83a6199664479ebb19712533d6fd9b authored by Björn Töpel on 28 October 2021, 12:51:15 UTC, committed by Jakub Kicinski on 28 October 2021, 15:14:30 UTC
The bpf_jit_binary_free() function requires a non-NULL argument. When the RISC-V BPF JIT fails to converge in NR_JIT_ITERATIONS steps, jit_data->header will be NULL, which triggers a NULL dereference. Avoid this by checking the argument, prior calling the function. Fixes: ca6cb5447cec ("riscv, bpf: Factor common RISC-V JIT code") Signed-off-by: Björn Töpel <bjorn@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/r/20211028125115.514587-1-bjorn@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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gxfb.rst
=============
What is gxfb?
=============
.. [This file is cloned from VesaFB/aty128fb]
This is a graphics framebuffer driver for AMD Geode GX2 based processors.
Advantages:
* No need to use AMD's VSA code (or other VESA emulation layer) in the
BIOS.
* It provides a nice large console (128 cols + 48 lines with 1024x768)
without using tiny, unreadable fonts.
* You can run XF68_FBDev on top of /dev/fb0
* Most important: boot logo :-)
Disadvantages:
* graphic mode is slower than text mode...
How to use it?
==============
Switching modes is done using gxfb.mode_option=<resolution>... boot
parameter or using `fbset` program.
See Documentation/fb/modedb.rst for more information on modedb
resolutions.
X11
===
XF68_FBDev should generally work fine, but it is non-accelerated.
Configuration
=============
You can pass kernel command line options to gxfb with gxfb.<option>.
For example, gxfb.mode_option=800x600@75.
Accepted options:
================ ==================================================
mode_option specify the video mode. Of the form
<x>x<y>[-<bpp>][@<refresh>]
vram size of video ram (normally auto-detected)
vt_switch enable vt switching during suspend/resume. The vt
switch is slow, but harmless.
================ ==================================================
Andres Salomon <dilinger@debian.org>
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