Linux wireless drivers development
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From: Rosen Penev <rosenp@gmail.com>
To: linux-wireless@vger.kernel.org
Cc: "Toke Høiland-Jørgensen" <toke@toke.dk>,
	linux-kernel@vger.kernel.org (open list)
Subject: [PATCH ath-next] wifi: ath9k: mark PN9Data as const
Date: Mon, 15 Jun 2026 20:06:52 -0700	[thread overview]
Message-ID: <20260616030652.635121-1-rosenp@gmail.com> (raw)

PN9Data is a read-only lookup table and is never modified.  Adding const
lets the compiler place it in .rodata and prevents accidental writes.

Assisted-by: opencode:big-pickle
Signed-off-by: Rosen Penev <rosenp@gmail.com>
---
 drivers/net/wireless/ath/ath9k/tx99.c | 16 ++++++++--------
 drivers/net/wireless/ath/ath9k/xmit.c |  2 +-
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/tx99.c b/drivers/net/wireless/ath/ath9k/tx99.c
index f2144fd39093..b52d84f6cbc9 100644
--- a/drivers/net/wireless/ath/ath9k/tx99.c
+++ b/drivers/net/wireless/ath/ath9k/tx99.c
@@ -39,14 +39,14 @@ static void ath9k_tx99_stop(struct ath_softc *sc)

 static struct sk_buff *ath9k_build_tx99_skb(struct ath_softc *sc)
 {
-	static u8 PN9Data[] = {0xff, 0x87, 0xb8, 0x59, 0xb7, 0xa1, 0xcc, 0x24,
-			       0x57, 0x5e, 0x4b, 0x9c, 0x0e, 0xe9, 0xea, 0x50,
-			       0x2a, 0xbe, 0xb4, 0x1b, 0xb6, 0xb0, 0x5d, 0xf1,
-			       0xe6, 0x9a, 0xe3, 0x45, 0xfd, 0x2c, 0x53, 0x18,
-			       0x0c, 0xca, 0xc9, 0xfb, 0x49, 0x37, 0xe5, 0xa8,
-			       0x51, 0x3b, 0x2f, 0x61, 0xaa, 0x72, 0x18, 0x84,
-			       0x02, 0x23, 0x23, 0xab, 0x63, 0x89, 0x51, 0xb3,
-			       0xe7, 0x8b, 0x72, 0x90, 0x4c, 0xe8, 0xfb, 0xc0};
+	static const u8 PN9Data[] = {0xff, 0x87, 0xb8, 0x59, 0xb7, 0xa1, 0xcc, 0x24,
+			             0x57, 0x5e, 0x4b, 0x9c, 0x0e, 0xe9, 0xea, 0x50,
+			             0x2a, 0xbe, 0xb4, 0x1b, 0xb6, 0xb0, 0x5d, 0xf1,
+			             0xe6, 0x9a, 0xe3, 0x45, 0xfd, 0x2c, 0x53, 0x18,
+			             0x0c, 0xca, 0xc9, 0xfb, 0x49, 0x37, 0xe5, 0xa8,
+			             0x51, 0x3b, 0x2f, 0x61, 0xaa, 0x72, 0x18, 0x84,
+			             0x02, 0x23, 0x23, 0xab, 0x63, 0x89, 0x51, 0xb3,
+			             0xe7, 0x8b, 0x72, 0x90, 0x4c, 0xe8, 0xfb, 0xc0};
 	u32 len = 1200;
 	struct ieee80211_tx_rate *rate;
 	struct ieee80211_hw *hw = sc->hw;
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 89d8b3178784..57e451548958 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -41,7 +41,7 @@
 #define ATH9K_PWRTBL_11NG_HT_SHIFT      12


-static u16 bits_per_symbol[][2] = {
+static const u16 bits_per_symbol[][2] = {
 	/* 20MHz 40MHz */
 	{    26,   54 },     /*  0: BPSK */
 	{    52,  108 },     /*  1: QPSK 1/2 */
--
2.54.0


                 reply	other threads:[~2026-06-16  3:07 UTC|newest]

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