This is now straightforward: just introduce a module parameter and pass the needed value to persistent_ram_new().
Signed-off-by: Anton Vorontsov anton.vorontsov@linaro.org --- fs/pstore/ram.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c index cf0ad92..eeb4e32 100644 --- a/fs/pstore/ram.c +++ b/fs/pstore/ram.c @@ -61,6 +61,11 @@ module_param(dump_oops, int, 0600); MODULE_PARM_DESC(dump_oops, "set to 1 to dump oopses, 0 to only dump panics (default 1)");
+static int ramoops_ecc; +module_param_named(ecc, ramoops_ecc, int, 0600); +MODULE_PARM_DESC(ramoops_ecc, + "set to 1 to enable ECC support"); + struct ramoops_context { struct persistent_ram_zone **przs; phys_addr_t phys_addr; @@ -251,7 +256,7 @@ static int __init ramoops_probe(struct platform_device *pdev) size_t sz = cxt->record_size; phys_addr_t start = cxt->phys_addr + sz * i;
- cxt->przs[i] = persistent_ram_new(start, sz, 0); + cxt->przs[i] = persistent_ram_new(start, sz, ramoops_ecc); if (IS_ERR(cxt->przs[i])) { err = PTR_ERR(cxt->przs[i]); pr_err("failed to initialize a prz\n"); @@ -283,9 +288,10 @@ static int __init ramoops_probe(struct platform_device *pdev) record_size = pdata->record_size; dump_oops = pdata->dump_oops;
- pr_info("attached 0x%lx@0x%llx (%ux0x%zx)\n", + pr_info("attached 0x%lx@0x%llx (%ux0x%zx), ecc: %s\n", cxt->size, (unsigned long long)cxt->phys_addr, - cxt->max_count, cxt->record_size); + cxt->max_count, cxt->record_size, + ramoops_ecc ? "on" : "off");
return 0;