From 9d48c62f6b4ed70ebeea70f52ddb1c6d8613bed4 Mon Sep 17 00:00:00 2001 From: Gal Pressman Date: Mon, 12 Jan 2026 19:37:14 +0200 Subject: [PATCH] selftests: drv-net: fix RPS mask handling in toeplitz test The toeplitz.py test passed the hex mask without "0x" prefix (e.g., "300" for CPUs 8,9). The toeplitz.c strtoul() call wrongly parsed this as decimal 300 (0x12c) instead of hex 0x300. Pass the prefixed mask to toeplitz.c, and the unprefixed one to sysfs. Fixes: 9cf9aa77a1f6 ("selftests: drv-net: hw: convert the Toeplitz test to Python") Reviewed-by: Nimrod Oren Signed-off-by: Gal Pressman Reviewed-by: Willem de Bruijn Link: https://patch.msgid.link/20260112173715.384843-2-gal@nvidia.com Signed-off-by: Jakub Kicinski --- tools/testing/selftests/drivers/net/hw/toeplitz.py | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/drivers/net/hw/toeplitz.py b/tools/testing/selftests/drivers/net/hw/toeplitz.py index d2db5ee9e358..d288c57894f6 100755 --- a/tools/testing/selftests/drivers/net/hw/toeplitz.py +++ b/tools/testing/selftests/drivers/net/hw/toeplitz.py @@ -94,12 +94,14 @@ def _configure_rps(cfg, rps_cpus): mask = 0 for cpu in rps_cpus: mask |= (1 << cpu) - mask = hex(mask)[2:] + + mask = hex(mask) # Set RPS bitmap for all rx queues for rps_file in glob.glob(f"/sys/class/net/{cfg.ifname}/queues/rx-*/rps_cpus"): with open(rps_file, "w", encoding="utf-8") as fp: - fp.write(mask) + # sysfs expects hex without '0x' prefix, toeplitz.c needs the prefix + fp.write(mask[2:]) return mask -- 2.47.3