From: Colin Ian King <colin.i.king@gmail.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jirislaby@kernel.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
linux-serial@vger.kernel.org
Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] serial: 8250_pci: remove redundant assignment to tmp after the mask operation
Date: Sun, 5 Dec 2021 23:28:22 +0000 [thread overview]
Message-ID: <20211205232822.110099-1-colin.i.king@gmail.com> (raw)
The variable tmp is being masked with a bitmask and the value is being
written to port base + 0x3c. However, the masked value is being written
back to tmp and tmp is never used after this. The assignmentment is
redundant, replace the &= operator with just &.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
---
drivers/tty/serial/8250/8250_pci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 60f8fffdfd77..81aac3c25ead 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1278,7 +1278,7 @@ static int pci_quatech_init(struct pci_dev *dev)
outl(inl(base + 0x38) | 0x00002000, base + 0x38);
tmp = inl(base + 0x3c);
outl(tmp | 0x01000000, base + 0x3c);
- outl(tmp &= ~0x01000000, base + 0x3c);
+ outl(tmp & ~0x01000000, base + 0x3c);
}
}
return 0;
--
2.33.1
next reply other threads:[~2021-12-05 23:28 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-05 23:28 Colin Ian King [this message]
2021-12-06 13:46 ` Andy Shevchenko
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