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[11/17] wifi: brcm80211: Replace open-coded parity calculation with parity32()

Message ID 20250223164217.2139331-12-visitorckw@gmail.com (mailing list archive)
State New
Delegated to: Johannes Berg
Headers show
Series Introduce and use generic parity32/64 helper | expand

Commit Message

Kuan-Wei Chiu Feb. 23, 2025, 4:42 p.m. UTC 
Refactor parity calculations to use the standard parity32() helper.
This change eliminates redundant implementations and improves code
efficiency.

Co-developed-by: Yu-Chun Lin <eleanor15x@gmail.com>
Signed-off-by: Yu-Chun Lin <eleanor15x@gmail.com>
Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com>
---
 .../wireless/broadcom/brcm80211/brcmsmac/dma.c   | 16 +---------------
 1 file changed, 1 insertion(+), 15 deletions(-)
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Patch

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/dma.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/dma.c
index 80c35027787a..d1a1ecd97d42 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/dma.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/dma.c
@@ -17,6 +17,7 @@ 
 #include <linux/slab.h>
 #include <linux/delay.h>
 #include <linux/pci.h>
+#include <linux/bitops.h>
 #include <net/cfg80211.h>
 #include <net/mac80211.h>
 
@@ -283,21 +284,6 @@  struct dma_info {
 	bool aligndesc_4k;
 };
 
-/* Check for odd number of 1's */
-static u32 parity32(__le32 data)
-{
-	/* no swap needed for counting 1's */
-	u32 par_data = *(u32 *)&data;
-
-	par_data ^= par_data >> 16;
-	par_data ^= par_data >> 8;
-	par_data ^= par_data >> 4;
-	par_data ^= par_data >> 2;
-	par_data ^= par_data >> 1;
-
-	return par_data & 1;
-}
-
 static bool dma64_dd_parity(struct dma64desc *dd)
 {
 	return parity32(dd->addrlow ^ dd->addrhigh ^ dd->ctrl1 ^ dd->ctrl2);