diff options
| author | Kees Cook <keescook@chromium.org> | 2023-09-22 10:28:50 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-10-02 11:24:54 -0700 |
| commit | 20551ee45d7d9fc655e27d16380e65ae8acbacc0 (patch) | |
| tree | a3b623b31b6b8d86611b3b0cbf995c3320f99f56 /drivers/net/ipa | |
| parent | a3d7a1209bbb06fe9d24b274475bc9879ca73333 (diff) | |
net: ipa: Annotate struct ipa_power 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 ipa_power.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20230922172858.3822653-8-keescook@chromium.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ipa')
| -rw-r--r-- | drivers/net/ipa/ipa_power.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ipa/ipa_power.c b/drivers/net/ipa/ipa_power.c index 0eaa7a7f3343..e223886123ce 100644 --- a/drivers/net/ipa/ipa_power.c +++ b/drivers/net/ipa/ipa_power.c @@ -67,7 +67,7 @@ struct ipa_power { spinlock_t spinlock; /* used with STOPPED/STARTED power flags */ DECLARE_BITMAP(flags, IPA_POWER_FLAG_COUNT); u32 interconnect_count; - struct icc_bulk_data interconnect[]; + struct icc_bulk_data interconnect[] __counted_by(interconnect_count); }; /* Initialize interconnects required for IPA operation */ |