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From: Nikolay Kulikov <nikolayof23@gmail.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Dan Carpenter <error27@gmail.com>,
	linux-staging@lists.linux.dev,
	Nikolay Kulikov <nikolayof23@gmail.com>
Subject: [PATCH v2 3/4] staging: rtl8723bs: remove overwriting of current IMR settings
Date: Tue, 12 May 2026 15:55:33 +0300	[thread overview]
Message-ID: <20260512125703.6878-4-nikolayof23@gmail.com> (raw)
In-Reply-To: <20260512125703.6878-1-nikolayof23@gmail.com>

Originally, this code use to
	Step 1: Read a value from register
	Step 2: Add some bits to the value
	Step 3: Write the result back to the same register

The problem was that the bits in Step 2 were always zero and didn't
change the value, so I have removed that code. Now this function
just reads a value and writes the same value back. It is unnecessary
and can be removed.

Signed-off-by: Nikolay Kulikov <nikolayof23@gmail.com>
---

Changes in v2:
	- Make the commit message clearer, as suggested by Dan Carpenter

 drivers/staging/rtl8723bs/hal/sdio_ops.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/staging/rtl8723bs/hal/sdio_ops.c b/drivers/staging/rtl8723bs/hal/sdio_ops.c
index f7f6e273c868..91580f6ba52e 100644
--- a/drivers/staging/rtl8723bs/hal/sdio_ops.c
+++ b/drivers/staging/rtl8723bs/hal/sdio_ops.c
@@ -592,17 +592,12 @@ void rtw_sdio_enable_interrupt(struct adapter *adapter)
 {
 	struct hal_com_data *haldata;
 	__le32 himr;
-	u32 tmp;
 
 	haldata = GET_HAL_DATA(adapter);
 
 	himr = cpu_to_le32(haldata->sdio_himr);
 	sdio_local_write(adapter, SDIO_REG_HIMR, 4, (u8 *)&himr);
 
-	/*  Update current system IMR settings */
-	tmp = rtw_read32(adapter, REG_HSIMR);
-	rtw_write32(adapter, REG_HSIMR, tmp);
-
 	/*  */
 	/*  <Roger_Notes> There are some C2H CMDs have been sent before system interrupt is enabled, e.g., C2H, CPWM. */
 	/*  So we need to clear all C2H events that FW has notified, otherwise FW won't schedule any commands anymore. */
-- 
2.54.0


  parent reply	other threads:[~2026-05-12 12:58 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-12 12:55 [PATCH v2 0/4] staging: rtl8723bs: remove unused sys interrupt Nikolay Kulikov
2026-05-12 12:55 ` [PATCH v2 1/4] staging: rtl8723bs: remove unused SysIntrMask from struct hal_com_data Nikolay Kulikov
2026-05-12 12:55 ` [PATCH v2 2/4] staging: rtl8723bs: remove empty InitSysInterrupt8723BSdio() Nikolay Kulikov
2026-05-12 12:55 ` Nikolay Kulikov [this message]
2026-05-12 12:55 ` [PATCH v2 4/4] staging: rtl8723bs: remove unused SysIntrStatus from struct hal_com_data Nikolay Kulikov

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