linux-kernel - [PATCH] char drivers: ramoops: update module parameters

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Date:	Mon,  1 Aug 2011 14:31:40 -0700
From:	Sergiu Iordache <sergiu@...omium.org>
To:	Marco Stornelli <marco.stornelli@...il.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Sergiu Iordache <sergiu@...omium.org>,
	Seiji Aguchi <seiji.aguchi@....com>,
	James Bottomley <JBottomley@...allels.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] char drivers: ramoops: update module parameters

This patch updates the module parameters when platform data is used.
This means that they can be read from /sys/module/ramoops/parameters in
order to parse the memory area.

Change-Id: Ic8cd3b1ff4d1bac0a761ed33c59c27daed83d6cb
Signed-off-by: Sergiu Iordache <sergiu@...omium.org>
---
 drivers/char/ramoops.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/drivers/char/ramoops.c b/drivers/char/ramoops.c
index fca0c51..810aff9 100644
--- a/drivers/char/ramoops.c
+++ b/drivers/char/ramoops.c
@@ -147,6 +147,14 @@ static int __init ramoops_probe(struct platform_device *pdev)
 	cxt->phys_addr = pdata->mem_address;
 	cxt->record_size = pdata->record_size;
 	cxt->dump_oops = pdata->dump_oops;
+	/*
+	 * Update the module parameter variables as well so they are visible
+	 * through /sys/module/ramoops/parameters/
+	 */
+	mem_size = pdata->mem_size;
+	mem_address = pdata->mem_address;
+	record_size = pdata->record_size;
+	dump_oops = pdata->dump_oops;
 
 	if (!request_mem_region(cxt->phys_addr, cxt->size, "ramoops")) {
 		pr_err("request mem region failed\n");
-- 
1.7.2.3

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