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authorPer Forlin <per.forlin@linaro.org>2011-09-14 01:03:29 +0400
committerChris Ball <cjb@laptop.org>2011-10-27 00:32:12 +0400
commit34f5050800d600551cca9bcfb463cc6699d82d04 (patch)
treeff434aab2d3c4c3de2f62aa60079b1f49974a9a7 /drivers/mmc/core/debugfs.c
parent6cba00eaa95c1ace1fb511f534b233ae302ccb2e (diff)
downloadlinux-34f5050800d600551cca9bcfb463cc6699d82d04.tar.xz
mmc: add module param to set fault injection attributes
Replace setup("fail_mmc_request") and faulty "ifdef KERNEL" with a simple module_param(). The module param mmc_core.fail_request may be used to set the fault injection attributes during boot time or module load time. Signed-off-by: Per Forlin <per.forlin@linaro.org> Reviewed-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/core/debugfs.c')
-rw-r--r--drivers/mmc/core/debugfs.c29
1 files changed, 11 insertions, 18 deletions
diff --git a/drivers/mmc/core/debugfs.c b/drivers/mmc/core/debugfs.c
index 96c603b0526f..da69aac4cc82 100644
--- a/drivers/mmc/core/debugfs.c
+++ b/drivers/mmc/core/debugfs.c
@@ -20,6 +20,14 @@
#include "core.h"
#include "mmc_ops.h"
+#ifdef CONFIG_FAIL_MMC_REQUEST
+
+static DECLARE_FAULT_ATTR(fail_default_attr);
+static char *fail_request;
+module_param(fail_request, charp, 0);
+
+#endif /* CONFIG_FAIL_MMC_REQUEST */
+
/* The debugfs functions are optimized away when CONFIG_DEBUG_FS isn't set. */
static int mmc_ios_show(struct seq_file *s, void *data)
{
@@ -168,23 +176,6 @@ static int mmc_clock_opt_set(void *data, u64 val)
return 0;
}
-#ifdef CONFIG_FAIL_MMC_REQUEST
-
-static DECLARE_FAULT_ATTR(fail_mmc_request);
-
-#ifdef KERNEL
-/*
- * Internal function. Pass the boot param fail_mmc_request to
- * the setup fault injection attributes routine.
- */
-static int __init setup_fail_mmc_request(char *str)
-{
- return setup_fault_attr(&fail_mmc_request, str);
-}
-__setup("fail_mmc_request=", setup_fail_mmc_request);
-#endif /* KERNEL */
-#endif /* CONFIG_FAIL_MMC_REQUEST */
-
DEFINE_SIMPLE_ATTRIBUTE(mmc_clock_fops, mmc_clock_opt_get, mmc_clock_opt_set,
"%llu\n");
@@ -216,7 +207,9 @@ void mmc_add_host_debugfs(struct mmc_host *host)
goto err_node;
#endif
#ifdef CONFIG_FAIL_MMC_REQUEST
- host->fail_mmc_request = fail_mmc_request;
+ if (fail_request)
+ setup_fault_attr(&fail_default_attr, fail_request);
+ host->fail_mmc_request = fail_default_attr;
if (IS_ERR(fault_create_debugfs_attr("fail_mmc_request",
root,
&host->fail_mmc_request)))