diff options
| author | Kees Cook <keescook@chromium.org> | 2023-08-17 13:30:22 -0700 |
|---|---|---|
| committer | Stephen Boyd <sboyd@kernel.org> | 2023-08-22 13:51:26 -0700 |
| commit | f316cdff8d677db9ad9c90acb44c4cd535b0ee27 (patch) | |
| tree | 97d76ea3848fd598a8f018bce521689a3edc6a0e /drivers/gpu/drm/sun4i | |
| parent | 06c2afb862f9da8dc5efa4b6076a0e48c3fbaaa5 (diff) | |
clk: Annotate struct clk_hw_onecell_data with __counted_by
Prepare for the coming implementation by GCC and Clang of the __counted_by
attribute. Flexible array members annotated with __counted_by can have
their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS
(for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).
As found with Coccinelle[1], add __counted_by for struct clk_hw_onecell_data.
Additionally, since the element count member must be set before accessing
the annotated flexible array member, move its initialization earlier.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Joel Stanley <joel@jms.id.au>
Cc: Andrew Jeffery <andrew@aj.id.au>
Cc: Taichi Sugaya <sugaya.taichi@socionext.com>
Cc: Takao Orito <orito.takao@socionext.com>
Cc: Qin Jian <qinjian@cqplus1.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory Clement <gregory.clement@bootlin.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <andersson@kernel.org>
Cc: Konrad Dybcio <konrad.dybcio@linaro.org>
Cc: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
Cc: David Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Samuel Holland <samuel@sholland.org>
Cc: Vinod Koul <vkoul@kernel.org>
Cc: Kishon Vijay Abraham I <kishon@kernel.org>
Cc: linux-clk@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-aspeed@lists.ozlabs.org
Cc: linux-arm-msm@vger.kernel.org
Cc: linux-mediatek@lists.infradead.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-sunxi@lists.linux.dev
Cc: linux-phy@lists.infradead.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230817203019.never.795-kees@kernel.org
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/sun4i')
| -rw-r--r-- | drivers/gpu/drm/sun4i/sun8i_tcon_top.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/gpu/drm/sun4i/sun8i_tcon_top.c b/drivers/gpu/drm/sun4i/sun8i_tcon_top.c index da97682b6835..5258ac1e4f53 100644 --- a/drivers/gpu/drm/sun4i/sun8i_tcon_top.c +++ b/drivers/gpu/drm/sun4i/sun8i_tcon_top.c @@ -141,6 +141,7 @@ static int sun8i_tcon_top_bind(struct device *dev, struct device *master, GFP_KERNEL); if (!clk_data) return -ENOMEM; + clk_data->num = CLK_NUM; tcon_top->clk_data = clk_data; spin_lock_init(&tcon_top->reg_lock); @@ -213,8 +214,6 @@ static int sun8i_tcon_top_bind(struct device *dev, struct device *master, goto err_unregister_gates; } - clk_data->num = CLK_NUM; - ret = of_clk_add_hw_provider(dev->of_node, of_clk_hw_onecell_get, clk_data); if (ret) |