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| author |  Kees Cook <keescook@chromium.org>
| 2023-09-22 10:50:19 -0700 |
|---|---|---|
| committer |  Alexandre Belloni <alexandre.belloni@bootlin.com>
| 2023-09-25 23:33:38 +0200 |
| commit | 751d377f0f7a09d6122de0e2232133524568c52b (patch) | |
| tree | edeacc11ea9a6169ca57577360158c2aa08510a6 /drivers/i3c | |
| parent | i3c: master: cdns: Annotate struct cdns_i3c_xfer with __counted_by (diff) | |
| download | linux-751d377f0f7a09d6122de0e2232133524568c52b.tar.gz linux-751d377f0f7a09d6122de0e2232133524568c52b.tar.bz2 linux-751d377f0f7a09d6122de0e2232133524568c52b.zip | |
i3c/master/mipi-i3c-hci: Annotate struct hci_rings_data 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 hci_rings_data.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Nicolas Pitre <npitre@baylibre.com>
Cc: Len Baker <len.baker@gmx.com>
Cc: Boris Brezillon <boris.brezillon@collabora.com>
Cc: linux-i3c@lists.infradead.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20230922175019.work.129-kees@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/i3c')
| -rw-r--r-- | drivers/i3c/master/mipi-i3c-hci/dma.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/i3c/master/mipi-i3c-hci/dma.c b/drivers/i3c/master/mipi-i3c-hci/dma.c index 2990ac9eaade..a1ecdfc35641 100644 --- a/drivers/i3c/master/mipi-i3c-hci/dma.c +++ b/drivers/i3c/master/mipi-i3c-hci/dma.c @@ -139,7 +139,7 @@ struct hci_rh_data { struct hci_rings_data { unsigned int total; - struct hci_rh_data headers[]; + struct hci_rh_data headers[] __counted_by(total); }; struct hci_dma_dev_ibi_data { |