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Commit 745b5364 authored by Laurentiu Tudor's avatar Laurentiu Tudor Committed by Greg Kroah-Hartman
Browse files

staging: fsl-mc: use generic memory barriers 



No need to use arch-specific memory barriers; switch to using generic
ones. The rmb()s were useless so drop them.

Signed-off-by: default avatarLaurentiu Tudor <laurentiu.tudor@nxp.com>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 87840fb5

drivers/staging/fsl-mc/bus/mc-sys.c

+2 −4
Original line number Diff line number Diff line
@@ -127,7 +127,8 @@ static inline void mc_write_command(struct mc_command __iomem *portal, 
	/* copy command parameters into the portal */

	for (i = 0; i < MC_CMD_NUM_OF_PARAMS; i++)

		__raw_writeq(cmd->params[i], &portal->params[i]);

	__iowmb();

	/* ensure command params are committed before submitting it */

	wmb();



	/* submit the command by writing the header */

	__raw_writeq(cmd->header, &portal->header);
@@ -150,9 +151,7 @@ static inline enum mc_cmd_status mc_read_response(struct mc_command __iomem * 
	enum mc_cmd_status status;



	/* Copy command response header from MC portal: */

	__iormb();

	resp->header = __raw_readq(&portal->header);

	__iormb();

	status = mc_cmd_hdr_read_status(resp);

	if (status != MC_CMD_STATUS_OK)

		return status;
@@ -160,7 +159,6 @@ static inline enum mc_cmd_status mc_read_response(struct mc_command __iomem * 
	/* Copy command response data from MC portal: */

	for (i = 0; i < MC_CMD_NUM_OF_PARAMS; i++)

		resp->params[i] = __raw_readq(&portal->params[i]);

	__iormb();



	return status;

}