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net: liquidio: fix overflow in octeon_init_instr_queue()
authorAlexey Nepomnyashih <sdl@nppct.ru>
Wed, 17 Sep 2025 15:30:58 +0000 (15:30 +0000)
committerJakub Kicinski <kuba@kernel.org>
Thu, 18 Sep 2025 14:47:17 +0000 (07:47 -0700)
commitcca7b1cfd7b8a0eff2a3510c5e0f10efe8fa3758
tree51225189578de4c22c5a6ee5c3fdd7df9cef8eb0tree
parent87ebb628a5acb892eba41ef1d8989beb8f036034commit | diff
net: liquidio: fix overflow in octeon_init_instr_queue()

The expression `(conf->instr_type == 64) << iq_no` can overflow because
`iq_no` may be as high as 64 (`CN23XX_MAX_RINGS_PER_PF`). Casting the
operand to `u64` ensures correct 64-bit arithmetic.

Fixes: f21fb3ed364b ("Add support of Cavium Liquidio ethernet adapters")
Signed-off-by: Alexey Nepomnyashih <sdl@nppct.ru>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
drivers/net/ethernet/cavium/liquidio/request_manager.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)