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| author | Gustavo A. R. Silva <gustavoars@kernel.org> | 2023-10-09 20:24:27 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2023-10-16 09:37:31 +0200 |
| commit | 9e13ec61de2a51195b122a79461431d8cb99d7b5 (patch) | |
| tree | 2b22f00a73489d5b278e8c69a162db70b55005e1 /drivers/accel/ivpu/ivpu_drv.h | |
| parent | Linux 6.6-rc3 (diff) | |
| download | linux-9e13ec61de2a51195b122a79461431d8cb99d7b5.tar.xz linux-9e13ec61de2a51195b122a79461431d8cb99d7b5.zip | |
iommu/virtio: Add __counted_by for struct viommu_request and use struct_size()
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 via CONFIG_UBSAN_BOUNDS (for
array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).
While there, use struct_size() helper, instead of the open-coded
version, to calculate the size for the allocation of the whole
flexible structure, including of course, the flexible-array member.
This code was found with the help of Coccinelle, and audited and
fixed manually.
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Justin Stitt <justinstitt@google.com>
Link: https://lore.kernel.org/r/ZSRFW0yDlDo8+at3@work
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/accel/ivpu/ivpu_drv.h')
0 files changed, 0 insertions, 0 deletions