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From: Ivy Lopez <skunkolee@gmail.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org,
	Dan Carpenter <error27@gmail.com>,
	Ivy Lopez <skunkolee@gmail.com>
Subject: [PATCH v2] staging: rtl8723bs: define EEPROM_DEFAULT_DIFF as -2 directly
Date: Mon, 17 Aug 2026 15:05:07 -0600	[thread overview]
Message-ID: <20260817210507.26168-1-skunkolee@gmail.com> (raw)
In-Reply-To: <20260815191030.24989-1-skunkolee@gmail.com>

EEPROM_DEFAULT_DIFF is defined as the bare integer literal 0xFE
(254) but is only ever assigned into s8 (signed char) fields used
to store signed TX power calibration offsets. The value -2 is the
intended default offset; expressing it as -2 directly instead of
0xFE avoids relying on implicit truncation of an unsigned-looking
hex literal into a signed field.

No functional change.

Signed-off-by: Ivy Lopez <skunkolee@gmail.com>
---
v2: express the value as -2 directly instead of casting 0xFE to s8,
    per Dan Carpenter's suggestion
---
 drivers/staging/rtl8723bs/include/hal_pg.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8723bs/include/hal_pg.h b/drivers/staging/rtl8723bs/include/hal_pg.h
index 7cb9c441fc01..83bf5f117e2d 100644
--- a/drivers/staging/rtl8723bs/include/hal_pg.h
+++ b/drivers/staging/rtl8723bs/include/hal_pg.h
@@ -40,7 +40,7 @@
 #define	EEPROM_RF_BT_SETTING_8723B		0xC3
 #define	EEPROM_VERSION_8723B			0xC4
 #define	EEPROM_CustomID_8723B			0xC5
-#define EEPROM_DEFAULT_DIFF			0XFE
+#define EEPROM_DEFAULT_DIFF			-2
 
 /* RTL8723BS */
 #define	EEPROM_MAC_ADDR_8723BS			0x11A
-- 
2.55.0


      parent reply	other threads:[~2026-08-17 21:05 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-15 19:10 [PATCH] staging: rtl8723bs: cast EEPROM_DEFAULT_DIFF to s8 Ivy Lopez
2026-08-17  7:49 ` Dan Carpenter
2026-08-17 21:05 ` Ivy Lopez [this message]

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