From f316cdff8d677db9ad9c90acb44c4cd535b0ee27 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 17 Aug 2023 13:30:22 -0700 Subject: 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 Cc: Stephen Boyd Cc: Joel Stanley Cc: Andrew Jeffery Cc: Taichi Sugaya Cc: Takao Orito Cc: Qin Jian Cc: Andrew Lunn Cc: Gregory Clement Cc: Sebastian Hesselbarth Cc: Andy Gross Cc: Bjorn Andersson Cc: Konrad Dybcio Cc: Sergio Paracuellos Cc: Matthias Brugger Cc: AngeloGioacchino Del Regno Cc: Maxime Ripard Cc: Chen-Yu Tsai Cc: Jernej Skrabec Cc: David Airlie Cc: Daniel Vetter Cc: Samuel Holland Cc: Vinod Koul Cc: Kishon Vijay Abraham I 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 Link: https://lore.kernel.org/r/20230817203019.never.795-kees@kernel.org Reviewed-by: Gustavo A. R. Silva Signed-off-by: Stephen Boyd --- drivers/phy/qualcomm/phy-qcom-edp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/phy') diff --git a/drivers/phy/qualcomm/phy-qcom-edp.c b/drivers/phy/qualcomm/phy-qcom-edp.c index fc8ca0f3018d..5c4305df7d53 100644 --- a/drivers/phy/qualcomm/phy-qcom-edp.c +++ b/drivers/phy/qualcomm/phy-qcom-edp.c @@ -746,6 +746,7 @@ static int qcom_edp_clks_register(struct qcom_edp *edp, struct device_node *np) data = devm_kzalloc(edp->dev, struct_size(data, hws, 2), GFP_KERNEL); if (!data) return -ENOMEM; + data->num = 2; snprintf(name, sizeof(name), "%s::link_clk", dev_name(edp->dev)); init.ops = &qcom_edp_dp_link_clk_ops; @@ -765,7 +766,6 @@ static int qcom_edp_clks_register(struct qcom_edp *edp, struct device_node *np) data->hws[0] = &edp->dp_link_hw; data->hws[1] = &edp->dp_pixel_hw; - data->num = 2; return devm_of_clk_add_hw_provider(edp->dev, of_clk_hw_onecell_get, data); } -- cgit v1.2.3