From a78e98f18e5b7e20aaa885e62da9df140e2a6fa0 Mon Sep 17 00:00:00 2001
From: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Date: Tue, 23 Apr 2024 17:09:39 +0200
Subject: [PATCH] etnaviv/nn: Keep track of the sign bit when decrementing to
 zero

To avoid underflow.

Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28879>
---
 src/gallium/drivers/etnaviv/etnaviv_ml_nn.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gallium/drivers/etnaviv/etnaviv_ml_nn.c b/src/gallium/drivers/etnaviv/etnaviv_ml_nn.c
index d39e6d6ec1b..b55002f94d4 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_ml_nn.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_ml_nn.c
@@ -1265,7 +1265,7 @@ calculate_zrl_bits(struct etna_ml_subgraph *subgraph, const struct etna_operatio
     */
    best_compressed_size = UINT_MAX;
    best_zrl_bits = 0;
-   for (unsigned zrl_bits = max_zrl_bits; zrl_bits >= 0; zrl_bits--) {
+   for (int zrl_bits = max_zrl_bits; zrl_bits >= 0; zrl_bits--) {
 
       unsigned compressed_size = header_size;
       for (unsigned core = 0; core < cores_used; core++) {