diff options
| author | Kees Cook <keescook@chromium.org> | 2023-08-17 13:42:15 -0700 |
|---|---|---|
| committer | Georgi Djakov <djakov@kernel.org> | 2023-08-22 01:11:32 +0300 |
| commit | dd4904f3b924b489a0adbd88768fadaadab94156 (patch) | |
| tree | fd5a94f9251f017d82a5de1ba1c93ab9d9f58801 /drivers/interconnect | |
| parent | 6f0c60f1461181c4edcd916a9647145e9d5cff98 (diff) | |
| download | linux-dd4904f3b924b489a0adbd88768fadaadab94156.tar.gz | |
interconnect: qcom: Annotate struct icc_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 icc_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: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <andersson@kernel.org>
Cc: Konrad Dybcio <konrad.dybcio@linaro.org>
Cc: Georgi Djakov <djakov@kernel.org>
Cc: linux-arm-msm@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230817204215.never.916-kees@kernel.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Diffstat (limited to 'drivers/interconnect')
| -rw-r--r-- | drivers/interconnect/qcom/icc-rpmh.c | 3 | ||||
| -rw-r--r-- | drivers/interconnect/qcom/msm8974.c | 2 | ||||
| -rw-r--r-- | drivers/interconnect/qcom/osm-l3.c | 2 |
3 files changed, 3 insertions, 4 deletions
diff --git a/drivers/interconnect/qcom/icc-rpmh.c b/drivers/interconnect/qcom/icc-rpmh.c index 8053ec8ab01b9e..b9f27ce3b6075c 100644 --- a/drivers/interconnect/qcom/icc-rpmh.c +++ b/drivers/interconnect/qcom/icc-rpmh.c @@ -185,6 +185,7 @@ int qcom_icc_rpmh_probe(struct platform_device *pdev) data = devm_kzalloc(dev, struct_size(data, nodes, num_nodes), GFP_KERNEL); if (!data) return -ENOMEM; + data->num_nodes = num_nodes; provider = &qp->provider; provider->dev = dev; @@ -228,8 +229,6 @@ int qcom_icc_rpmh_probe(struct platform_device *pdev) data->nodes[i] = node; } - data->num_nodes = num_nodes; - ret = icc_provider_register(provider); if (ret) goto err_remove_nodes; diff --git a/drivers/interconnect/qcom/msm8974.c b/drivers/interconnect/qcom/msm8974.c index b85cab2f208fdc..885ca9d6d4ed81 100644 --- a/drivers/interconnect/qcom/msm8974.c +++ b/drivers/interconnect/qcom/msm8974.c @@ -675,6 +675,7 @@ static int msm8974_icc_probe(struct platform_device *pdev) GFP_KERNEL); if (!data) return -ENOMEM; + data->num_nodes = num_nodes; qp->bus_clks = devm_kmemdup(dev, msm8974_icc_bus_clocks, sizeof(msm8974_icc_bus_clocks), GFP_KERNEL); @@ -721,7 +722,6 @@ static int msm8974_icc_probe(struct platform_device *pdev) data->nodes[i] = node; } - data->num_nodes = num_nodes; ret = icc_provider_register(provider); if (ret) diff --git a/drivers/interconnect/qcom/osm-l3.c b/drivers/interconnect/qcom/osm-l3.c index 056ac91225c48f..dc321bb86d0be9 100644 --- a/drivers/interconnect/qcom/osm-l3.c +++ b/drivers/interconnect/qcom/osm-l3.c @@ -232,6 +232,7 @@ static int qcom_osm_l3_probe(struct platform_device *pdev) data = devm_kzalloc(&pdev->dev, struct_size(data, nodes, num_nodes), GFP_KERNEL); if (!data) return -ENOMEM; + data->num_nodes = num_nodes; provider = &qp->provider; provider->dev = &pdev->dev; @@ -261,7 +262,6 @@ static int qcom_osm_l3_probe(struct platform_device *pdev) data->nodes[i] = node; } - data->num_nodes = num_nodes; ret = icc_provider_register(provider); if (ret) |