diff options
| author | Kees Cook <[email protected]> | 2023-08-17 16:58:53 -0700 |
|---|---|---|
| committer | Vinod Koul <[email protected]> | 2023-09-28 16:42:15 +0530 |
| commit | 15f2c636dde8c4370db87ceabce5cc8325460d77 (patch) | |
| tree | 135e38ff7e4db72bc8adeaf6afc32f8adb85870a | |
| parent | 32b5e2d7cd14c80de1fa1cdffcc6ec211b615d82 (diff) | |
dmaengine: tegra210-adma: Annotate struct tegra_adma 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 tegra_adma.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Vinod Koul <[email protected]>
Cc: Laxman Dewangan <[email protected]>
Cc: Jon Hunter <[email protected]>
Cc: Thierry Reding <[email protected]>
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Kees Cook <[email protected]>
Reviewed-by: "Gustavo A. R. Silva" <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>
| -rw-r--r-- | drivers/dma/tegra210-adma.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma/tegra210-adma.c b/drivers/dma/tegra210-adma.c index 60111d40325e..7a0586633bf3 100644 --- a/drivers/dma/tegra210-adma.c +++ b/drivers/dma/tegra210-adma.c @@ -162,7 +162,7 @@ struct tegra_adma { const struct tegra_adma_chip_data *cdata; /* Last member of the structure */ - struct tegra_adma_chan channels[]; + struct tegra_adma_chan channels[] __counted_by(nr_channels); }; static inline void tdma_write(struct tegra_adma *tdma, u32 reg, u32 val) |