linux-kernel - [PATCH 2/4] ieee1394: replace CSR_SET_BUS_INFO

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Date:	Sat, 13 Dec 2008 15:02:21 -0800
From:	Harvey Harrison <harvey.harrison@...il.com>
To:	Stefan Richter <stefanr@...6.in-berlin.de>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 2/4] ieee1394: replace CSR_SET_BUS_INFO_GENERATION macro

Signed-off-by: Harvey Harrison <harvey.harrison@...il.com>
---
 drivers/ieee1394/csr.h   |   10 +++++-----
 drivers/ieee1394/hosts.c |    6 +++---
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/ieee1394/csr.h b/drivers/ieee1394/csr.h
index f115465..90fb3f2 100644
--- a/drivers/ieee1394/csr.h
+++ b/drivers/ieee1394/csr.h
@@ -50,11 +50,11 @@
 #define CSR_MAX_ROM_SHIFT		8
 #define CSR_GENERATION_SHIFT		4
 
-#define CSR_SET_BUS_INFO_GENERATION(csr, gen)				\
-	((csr)->bus_info_data[2] =					\
-		cpu_to_be32((be32_to_cpu((csr)->bus_info_data[2]) &	\
-			     ~(0xf << CSR_GENERATION_SHIFT)) |		\
-			    (gen) << CSR_GENERATION_SHIFT))
+static inline void csr_set_bus_info_generation(struct csr1212_csr *csr, u8 gen)
+{
+	csr->bus_info_data[2] &= ~cpu_to_be32(0xf << CSR_GENERATION_SHIFT);
+	csr->bus_info_data[2] |= cpu_to_be32((u32)gen << CSR_GENERATION_SHIFT);
+}
 
 struct csr_control {
 	spinlock_t lock;
diff --git a/drivers/ieee1394/hosts.c b/drivers/ieee1394/hosts.c
index 237d0c9..e947d8f 100644
--- a/drivers/ieee1394/hosts.c
+++ b/drivers/ieee1394/hosts.c
@@ -34,18 +34,18 @@ static void delayed_reset_bus(struct work_struct *work)
 {
 	struct hpsb_host *host =
 		container_of(work, struct hpsb_host, delayed_reset.work);
-	int generation = host->csr.generation + 1;
+	u8 generation = host->csr.generation + 1;
 
 	/* The generation field rolls over to 2 rather than 0 per IEEE
 	 * 1394a-2000. */
 	if (generation > 0xf || generation < 2)
 		generation = 2;
 
-	CSR_SET_BUS_INFO_GENERATION(host->csr.rom, generation);
+	csr_set_bus_info_generation(host->csr.rom, generation);
 	if (csr1212_generate_csr_image(host->csr.rom) != CSR1212_SUCCESS) {
 		/* CSR image creation failed.
 		 * Reset generation field and do not issue a bus reset. */
-		CSR_SET_BUS_INFO_GENERATION(host->csr.rom,
+		csr_set_bus_info_generation(host->csr.rom,
 					    host->csr.generation);
 		return;
 	}
-- 
1.6.1.rc2.306.ge5d5e


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