This series makes three small improvements to the SMEM GLINK transport: 1. Use modulo instead of subtraction for FIFO tail wrap-around in rx_advance, so the index is always normalised back into [0, length) regardless of the advance count.
2. Add WARN_ON_ONCE checks in the FIFO read/write helpers to catch and report broken index invariants early, rather than proceeding with an out-of-bounds offset into the FIFO. 3. Pass dev_name(&smem->dev) as the IRQ name instead of the static string "glink-smem". On platforms with multiple remoteprocs each SMEM GLINK instance registers its own IRQ, and the unique device name makes each entry in /proc/interrupts identifiable without adding a new struct field. Signed-off-by: Chunkai Deng <[email protected]> --- Chunkai Deng (3): rpmsg: glink: smem: Use device name as IRQ name rpmsg: glink: smem: Add WARN_ON_ONCE for FIFO index invariants rpmsg: glink: smem: Use modulo for FIFO tail wrap-around in rx_advance drivers/rpmsg/qcom_glink_smem.c | 22 ++++++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-) --- base-commit: f7af91adc230aa99e23330ecf85bc9badd9780ad change-id: 20260601-rpmsg-improvements-643a6e133f66 Best regards, -- Chunkai Deng <[email protected]>
