linux_dsm_epyc7002/drivers/gpu/drm/vc4
Gustavo A. R. Silva 5b2adbddf2 drm/vc4/vc4_drv.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:

struct foo {
        int stuff;
        struct boo array[];
};

By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.

Also, notice that, dynamic memory allocations won't be affected by
this change:

"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]

This issue was found with the help of Coccinelle.

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305105707.GA19261@embeddedor
2020-03-06 11:50:17 +01:00
..
Kconfig drm/vc4: Fix Kconfig indentation 2019-11-25 10:04:41 +01:00
Makefile
vc4_bo.c Linus 5.3-rc1 2019-07-22 21:24:10 +02:00
vc4_crtc.c drm/vc4: Convert to CRTC VBLANK callbacks 2020-02-13 13:10:10 +01:00
vc4_debugfs.c Linus 5.3-rc1 2019-07-22 21:24:10 +02:00
vc4_dpi.c drm/bridge: Extend bridge API to disable connector creation 2020-02-26 13:31:23 +02:00
vc4_drv.c drm/vc4: Convert to CRTC VBLANK callbacks 2020-02-13 13:10:10 +01:00
vc4_drv.h drm/vc4/vc4_drv.h: Replace zero-length array with flexible-array member 2020-03-06 11:50:17 +01:00
vc4_dsi.c drm/bridge: Extend bridge API to disable connector creation 2020-02-26 13:31:23 +02:00
vc4_fence.c
vc4_gem.c drm/vc4: Use dma_resv locking wrappers 2019-12-17 17:26:08 +01:00
vc4_hdmi.c drm/vc4: Provide ddc symlink in connector sysfs directory 2020-01-07 20:25:43 +01:00
vc4_hvs.c drm/mm: Use helpers for drm_mm_node booleans 2019-10-04 13:42:33 +01:00
vc4_irq.c drm/vc4: Allocate binner bo when starting to use the V3D 2019-05-23 17:32:21 +02:00
vc4_kms.c Linus 5.3-rc1 2019-07-22 21:24:10 +02:00
vc4_packet.h
vc4_perfmon.c drm/vc4: Disable V3D interactions if the v3d component didn't probe. 2019-04-03 12:49:18 -07:00
vc4_plane.c drm/vc4: plane_state->fb iff plane_state->crtc 2020-01-28 15:42:43 +01:00
vc4_qpu_defines.h
vc4_regs.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
vc4_render_cl.c drm/vc4: Make sure to emit a tile coordinates between two MSAA loads. 2019-04-01 09:33:38 -07:00
vc4_trace_points.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
vc4_trace.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
vc4_txp.c Merge drm/drm-fixes into drm-misc-fixes 2019-10-03 09:59:29 +02:00
vc4_v3d.c Linus 5.3-rc1 2019-07-22 21:24:10 +02:00
vc4_validate_shaders.c
vc4_validate.c
vc4_vec.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00