diff options
| author | Kees Cook <keescook@chromium.org> | 2023-09-22 10:53:23 -0700 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-09-22 19:01:40 +0100 |
| commit | c40897f4730f4f9a37f3155e3e0452e1c8da37b4 (patch) | |
| tree | 3c4b6628e89ab9960dfeb613f0dfa0d20297d980 /drivers/spi | |
| parent | 21f252cd29f08892d48739fd7513ad79c1cff96a (diff) | |
spi: mchp-pci1xxxx: Annotate struct pci1xxxx_spi 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 pci1xxxx_spi.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Mark Brown <broonie@kernel.org>
Cc: linux-spi@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230922175322.work.170-kees@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-pci1xxxx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/spi/spi-pci1xxxx.c b/drivers/spi/spi-pci1xxxx.c index 3638e974f5d4..5b2d3e4e21b7 100644 --- a/drivers/spi/spi-pci1xxxx.c +++ b/drivers/spi/spi-pci1xxxx.c @@ -77,7 +77,7 @@ struct pci1xxxx_spi { struct pci_dev *dev; u8 total_hw_instances; void __iomem *reg_base; - struct pci1xxxx_spi_internal *spi_int[]; + struct pci1xxxx_spi_internal *spi_int[] __counted_by(total_hw_instances); }; static const struct pci_device_id pci1xxxx_spi_pci_id_table[] = { |