diff options
| author | Kees Cook <keescook@chromium.org> | 2023-09-22 10:51:27 -0700 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2023-09-28 12:25:31 +0200 |
| commit | 6260ecd04594360ae2af104fb2641317728a66e4 (patch) | |
| tree | fb6403e6f3ed236d867e6f973e4782fb557ef8ec /include/linux/irqdomain.h | |
| parent | 0bb80ecc33a8fb5a682236443c1e740d5c917d1d (diff) | |
irqdomain: Annotate struct irq_domain 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 irq_domain.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20230922175127.work.214-kees@kernel.org
Diffstat (limited to 'include/linux/irqdomain.h')
| -rw-r--r-- | include/linux/irqdomain.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h index 51c254b7fec2..ee0a82c60508 100644 --- a/include/linux/irqdomain.h +++ b/include/linux/irqdomain.h @@ -174,7 +174,7 @@ struct irq_domain { irq_hw_number_t hwirq_max; unsigned int revmap_size; struct radix_tree_root revmap_tree; - struct irq_data __rcu *revmap[]; + struct irq_data __rcu *revmap[] __counted_by(revmap_size); }; /* Irq domain flags */ |