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Commit d816309f authored by Sujeev Dias's avatar Sujeev Dias Committed by Chris Lew
Browse files

mhi: dev: netdev: add debugfs hook to disable SKB chaining 



Add debugfs entries to disable chaining of SKBs from MHI network
driver.

CRs-Fixed: 2482422
Change-Id: Ic8731fa293828a50245e5ea46d7770cd6703085c
Acked-by: default avatarBhaumik Vasav Bhatt <bbhatt@qti.qualcomm.com>
Signed-off-by: default avatarSujeev Dias <sdias@codeaurora.org>
parent 6d6aa1c9

drivers/bus/mhi/devices/mhi_netdev.c

+18 −0
Original line number Diff line number Diff line
@@ -866,6 +866,22 @@ static const struct file_operations debugfs_stats = { 
	.read = seq_read,

};



int mhi_netdev_debugfs_chain(void *data, u64 val)

{

	struct mhi_netdev *mhi_netdev = data;

	struct mhi_netdev *rsc_dev = mhi_netdev->rsc_dev;



	mhi_netdev->chain = NULL;



	if (rsc_dev)

		rsc_dev->chain = NULL;



	return 0;

}



DEFINE_DEBUGFS_ATTRIBUTE(debugfs_chain, NULL,

			 mhi_netdev_debugfs_chain, "%llu\n");



static void mhi_netdev_create_debugfs(struct mhi_netdev *mhi_netdev)

{

	char node_name[32];
@@ -885,6 +901,8 @@ static void mhi_netdev_create_debugfs(struct mhi_netdev *mhi_netdev) 


	debugfs_create_file_unsafe("stats", 0444, mhi_netdev->dentry,

				   mhi_netdev, &debugfs_stats);

	debugfs_create_file_unsafe("chain", 0444, mhi_netdev->dentry,

				   mhi_netdev, &debugfs_chain);

}



static void mhi_netdev_create_debugfs_dir(void)