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From: Vandana BN <bnvandana@gmail.com>
To: gregkh@linuxfoundation.org, devel@driverdev.osuosl.org,
	linux-kernel@vger.kernel.org, lukas.bulwahn@gmail.com
Cc: skhan@linuxfoundation.org,
	linux-kernel-mentees@lists.linuxfoundation.org,
	Vandana BN <bnvandana@gmail.com>
Subject: [PATCH v2 8/8] Staging: kpc2000: kpc_dma: Resolve coding style warning reported by checkpatch
Date: Mon, 13 May 2019 05:10:00 +0530	[thread overview]
Message-ID: <20190512234000.16555-8-bnvandana@gmail.com> (raw)
In-Reply-To: <20190512234000.16555-1-bnvandana@gmail.com>

This Patch resolves unnecessary cast warning and const file_operations
WARNING: unnecessary cast may hide bugs
WARNING: struct file_operations should normally be const

Signed-off-by: Vandana BN <bnvandana@gmail.com>
---
 drivers/staging/kpc2000/kpc_dma/fileops.c        | 4 ++--
 drivers/staging/kpc2000/kpc_dma/kpc_dma_driver.h | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/kpc2000/kpc_dma/fileops.c b/drivers/staging/kpc2000/kpc_dma/fileops.c
index c21672ea2b4f..54a1419728ce 100644
--- a/drivers/staging/kpc2000/kpc_dma/fileops.c
+++ b/drivers/staging/kpc2000/kpc_dma/fileops.c
@@ -59,7 +59,7 @@ int  kpc_dma_transfer(struct dev_private_data *priv, struct kiocb *kcb, unsigned
 
 	dev_dbg(&priv->ldev->pldev->dev, "%s(priv = [%p], kcb = [%p], iov_base = [%p], iov_len = %ld) ldev = [%p]\n", __func__, priv, kcb, (void *)iov_base, iov_len, ldev);
 
-	acd = (struct aio_cb_data *) kzalloc(sizeof(struct aio_cb_data), GFP_KERNEL);
+	acd = kzalloc(sizeof(struct aio_cb_data), GFP_KERNEL);
 	if (!acd) {
 		dev_err(&priv->ldev->pldev->dev, "Couldn't kmalloc space for for the aio data\n");
 		return -ENOMEM;
@@ -418,7 +418,7 @@ long  kpc_dma_ioctl(struct file *filp, unsigned int ioctl_num, unsigned long ioc
 	return -ENOTTY;
 }
 
-struct file_operations  kpc_dma_fops = {
+const struct file_operations  kpc_dma_fops = {
 	.owner      = THIS_MODULE,
 	.open           = kpc_dma_open,
 	.release        = kpc_dma_close,
diff --git a/drivers/staging/kpc2000/kpc_dma/kpc_dma_driver.h b/drivers/staging/kpc2000/kpc_dma/kpc_dma_driver.h
index cf781940ac1b..ee47f43e71cf 100644
--- a/drivers/staging/kpc2000/kpc_dma/kpc_dma_driver.h
+++ b/drivers/staging/kpc2000/kpc_dma/kpc_dma_driver.h
@@ -57,7 +57,7 @@ struct dev_private_data {
 
 struct kpc_dma_device *kpc_dma_lookup_device(int minor);
 
-extern struct file_operations  kpc_dma_fops;
+extern const struct file_operations  kpc_dma_fops;
 
 #define ENG_CAP_PRESENT                 0x00000001
 #define ENG_CAP_DIRECTION               0x00000002
-- 
2.17.1


  parent reply	other threads:[~2019-05-12 23:40 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-10 19:38 [PATCH] Staging: kpc2000: kpc_dma: resolve checkpath errors and warnings Vandana BN
2019-05-10 20:34 ` [Linux-kernel-mentees] " Lukas Bulwahn
2019-05-12 15:48   ` Vandana BN
2019-05-11  6:04 ` Greg KH
2019-05-12 23:39 ` [PATCH v2 1/8] Staging: kpc2000: kpc_dma: resolve trailing whitespace error reported by checkpatch Vandana BN
2019-05-12 23:39   ` [PATCH v2 2/8] Staging: kpc2000: kpc_dma: Resolve coding style errors " Vandana BN
2019-05-13  8:42     ` Greg KH
2019-05-13 10:43       ` Vandana BN
2019-05-12 23:39   ` [PATCH v2 3/8] " Vandana BN
2019-05-12 23:39   ` [PATCH v2 4/8] Staging: kpc2000: kpc_dma: Resolve code indent error " Vandana BN
2019-05-12 23:39   ` [PATCH v2 5/8] Staging: kpc2000: kpc_dma: Resolve coding style " Vandana BN
2019-05-12 23:39   ` [PATCH v2 6/8] Staging: kpc2000: kpc_dma: Resolve coding style warning " Vandana BN
2019-05-12 23:39   ` [PATCH v2 7/8] " Vandana BN
2019-05-12 23:40   ` Vandana BN [this message]
2019-05-13 10:26 ` [PATCH v3 1/8] Staging: kpc2000: kpc_dma: Resolve trailing whitespace error " Vandana BN
2019-05-13 10:26   ` [PATCH v3 2/8] Staging: kpc2000: kpc_dma: Resolve space errors around pointers and function declarations " Vandana BN
2019-05-13 10:26   ` [PATCH v3 3/8] Staging: kpc2000: kpc_dma: Resolve checkpatch space errors around brace '{','!' and open paranthesis '(' Vandana BN
2019-05-13 10:26   ` [PATCH v3 4/8] Staging: kpc2000: kpc_dma: Resolve code indent and trailing statements on next line errors reported by checkpatch Vandana BN
2019-05-13 10:26   ` [PATCH v3 5/8] Staging: kpc2000: kpc_dma: Resolve checkpath errors Macros in paranthesis & trailing statements on next line Vandana BN
2019-05-13 10:26   ` [PATCH v3 6/8] Staging: kpc2000: kpc_dma: Resolve warning Missing blank line after declarations & labels not to be indented Vandana BN
2019-05-13 10:26   ` [PATCH v3 7/8] Staging: kpc2000: kpc_dma: Resolve warning to use __func__ insted of funtion name reported by checkpatch Vandana BN
2019-05-13 10:26   ` [PATCH v3 8/8] Staging: kpc2000: kpc_dma: Resolve cast warning and use const for file_operation Vandana BN
2019-05-13 10:49   ` [PATCH v3 1/8] Staging: kpc2000: kpc_dma: Resolve trailing whitespace error reported by checkpatch Dan Carpenter
2019-05-13 12:00     ` Vandana BN
2019-05-13 13:43 ` [PATCH v4 " Vandana BN
2019-05-13 13:43   ` [PATCH v4 2/8] Staging: kpc2000: kpc_dma: Resolve space errors around pointers and function declarations " Vandana BN
2019-05-13 13:43   ` [PATCH v4 3/8] Staging: kpc2000: kpc_dma: Resolve checkpatch space errors around brace '{','!' and open paranthesis '(' Vandana BN
2019-05-13 13:43   ` [PATCH v4 4/8] Staging: kpc2000: kpc_dma: Resolve code indent and trailing statements on next line errors reported by checkpatch Vandana BN
2019-05-13 13:43   ` [PATCH v4 5/8] Staging: kpc2000: kpc_dma: Resolve checkpath errors Macros in paranthesis & trailing statements on next line Vandana BN
2019-05-13 13:43   ` [PATCH v4 6/8] Staging: kpc2000: kpc_dma: Resolve warning Missing blank line after declarations & labels not to be indented Vandana BN
2019-05-13 13:43   ` [PATCH v4 7/8] Staging: kpc2000: kpc_dma: Resolve warning to use __func__ insted of funtion name reported by checkpatch Vandana BN
2019-05-13 13:43   ` [PATCH v4 8/8] Staging: kpc2000: kpc_dma: Resolve cast warning and use const for file_operation Vandana BN

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