[PATCH] wifi: ath12k: Fix invalid frequency error in freq_to_idx

[Saikiran]

During suspend/resume, the following error is observed in dmesg:
  ath12k_pci 0004:01:00.0: chan info: invalid frequency <freq> (idx 101 out of bounds)

This occurs because freq_to_idx() incorrectly filters channels based on
ar->freq_range.start_freq and ar->freq_range.end_freq. These values can be
temporarily zeroed out (e.g., during regulatory updates or suspend/resume
sequences) while the hardware is still operational or reporting status.

When these values are zero, the filter skips all valid channels, causing
the function to return the total channel count (e.g. 101) instead of the
actual index, triggering the out-of-bounds warning.

Remove the broken frequency range filtering from freq_to_idx(). Channel
mapping should depend only on the hardware band definition, not on the
transient regulatory frequency range. This mirrors the fix recently applied
to ath12k_reg_update_chan_list().

Tested-on: Lenovo Yoga Slim 7x

Signed-off-by: Saikiran <bjsaikiran at gmail.com>
---
 drivers/net/wireless/ath/ath12k/wmi.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c
index be8b2943094f..bef1b324b62c 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.c
+++ b/drivers/net/wireless/ath/ath12k/wmi.c
@@ -6576,11 +6576,7 @@ static int freq_to_idx(struct ath12k *ar, int freq)
 			continue;
 
 		for (ch = 0; ch < sband->n_channels; ch++, idx++) {
-			if (sband->channels[ch].center_freq <
-			    KHZ_TO_MHZ(ar->freq_range.start_freq) ||
-			    sband->channels[ch].center_freq >
-			    KHZ_TO_MHZ(ar->freq_range.end_freq))
-				continue;
+
 
 			if (sband->channels[ch].center_freq == freq)
 				goto exit;
-- 
2.51.0