[PATCH 0/3] rpmsg: glink: smem: robustness and debuggability fixes

[Chunkai Deng <chunkai.deng@oss.qualcomm.com>]

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 <chunkai.deng@oss.qualcomm.com>
---
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 <chunkai.deng@oss.qualcomm.com>