On 04/16/2016 03:13 PM, Arnd Bergmann wrote:
The recently added Arria10 OCRAM ECC support caused some new
harmless warnings about unused functions when it is disabled:
drivers/edac/altera_edac.c:1067:20: error: 'altr_edac_a10_ecc_irq' defined but
not used [-Werror=unused-function]
drivers/edac/altera_edac.c:658:12: error: 'altr_check_ecc_deps' defined but not
used [-Werror=unused-function]
This rearranges the code slightly to have those two functions inside
of the same #ifdef that hides their callers. It also manages to
avoid a forward declaration of the IRQ handler in the process.
Signed-off-by: Arnd Bergmann <a...@arndb.de>
Fixes: c7b4be8db8bc ("EDAC, altera: Add Arria10 OCRAM ECC support")
---
drivers/edac/altera_edac.c | 78 ++++++++++++++++++++++------------------------
1 file changed, 37 insertions(+), 41 deletions(-)
diff --git a/drivers/edac/altera_edac.c b/drivers/edac/altera_edac.c
index cc987b4ce908..5b4d223d6d68 100644
--- a/drivers/edac/altera_edac.c
+++ b/drivers/edac/altera_edac.c
@@ -649,26 +649,6 @@ static ssize_t altr_edac_device_trig(struct file *file,
return count;
}
-/*
- * Test for memory's ECC dependencies upon entry because platform specific
- * startup should have initialized the memory and enabled the ECC.
- * Can't turn on ECC here because accessing un-initialized memory will
- * cause CE/UE errors possibly causing an ABORT.
- */
-static int altr_check_ecc_deps(struct altr_edac_device_dev *device)
-{
- void __iomem *base = device->base;
- const struct edac_device_prv_data *prv = device->data;
-
- if (readl(base + prv->ecc_en_ofst) & prv->ecc_enable_mask)
- return 0;
-
- edac_printk(KERN_ERR, EDAC_DEVICE,
- "%s: No ECC present or ECC disabled.\n",
- device->edac_dev_name);
- return -ENODEV;
-}
-
static const struct file_operations altr_edac_device_inject_fops = {
.open = simple_open,
.write = altr_edac_device_trig,
@@ -848,6 +828,25 @@ module_platform_driver(altr_edac_device_driver);
/*********************** OCRAM EDAC Device Functions *********************/
#ifdef CONFIG_EDAC_ALTERA_OCRAM
+/*
+ * Test for memory's ECC dependencies upon entry because platform specific
+ * startup should have initialized the memory and enabled the ECC.
+ * Can't turn on ECC here because accessing un-initialized memory will
+ * cause CE/UE errors possibly causing an ABORT.
+ */
+static int altr_check_ecc_deps(struct altr_edac_device_dev *device)
+{
+ void __iomem *base = device->base;
+ const struct edac_device_prv_data *prv = device->data;
+
+ if (readl(base + prv->ecc_en_ofst) & prv->ecc_enable_mask)
+ return 0;
+
+ edac_printk(KERN_ERR, EDAC_DEVICE,
+ "%s: No ECC present or ECC disabled.\n",
+ device->edac_dev_name);
+ return -ENODEV;
+}
static void *ocram_alloc_mem(size_t size, void **other)
{
@@ -883,6 +882,24 @@ static void ocram_free_mem(void *p, size_t size, void
*other)
gen_pool_free((struct gen_pool *)other, (u32)p, size);
}
+static irqreturn_t altr_edac_a10_ecc_irq(struct altr_edac_device_dev *dci,
+ bool sberr)
+{
+ void __iomem *base = dci->base;
+
+ if (sberr) {
+ writel(ALTR_A10_ECC_SERRPENA,
+ base + ALTR_A10_ECC_INTSTAT_OFST);
+ edac_device_handle_ce(dci->edac_dev, 0, 0, dci->edac_dev_name);
+ } else {
+ writel(ALTR_A10_ECC_DERRPENA,
+ base + ALTR_A10_ECC_INTSTAT_OFST);
+ edac_device_handle_ue(dci->edac_dev, 0, 0, dci->edac_dev_name);
+ panic("\nEDAC:ECC_DEVICE[Uncorrectable errors]\n");
+ }
+ return IRQ_HANDLED;
+}
+
const struct edac_device_prv_data ocramecc_data = {
.setup = altr_check_ecc_deps,
.ce_clear_mask = (ALTR_OCR_ECC_EN | ALTR_OCR_ECC_SERR),
@@ -899,9 +916,6 @@ const struct edac_device_prv_data ocramecc_data = {
.inject_fops = &altr_edac_device_inject_fops,
};
-static irqreturn_t altr_edac_a10_ecc_irq(struct altr_edac_device_dev *dci,
- bool sberr);
-
const struct edac_device_prv_data a10_ocramecc_data = {
.setup = altr_check_ecc_deps,
.ce_clear_mask = ALTR_A10_ECC_SERRPENA,
@@ -1061,24 +1075,6 @@ static ssize_t altr_edac_a10_device_trig(struct file
*file,
return count;
}
-static irqreturn_t altr_edac_a10_ecc_irq(struct altr_edac_device_dev *dci,
- bool sberr)
-{
- void __iomem *base = dci->base;
-
- if (sberr) {
- writel(ALTR_A10_ECC_SERRPENA,
- base + ALTR_A10_ECC_INTSTAT_OFST);
- edac_device_handle_ce(dci->edac_dev, 0, 0, dci->edac_dev_name);
- } else {
- writel(ALTR_A10_ECC_DERRPENA,
- base + ALTR_A10_ECC_INTSTAT_OFST);
- edac_device_handle_ue(dci->edac_dev, 0, 0, dci->edac_dev_name);
- panic("\nEDAC:ECC_DEVICE[Uncorrectable errors]\n");
- }
- return IRQ_HANDLED;
-}
-
static irqreturn_t altr_edac_a10_irq_handler(int irq, void *dev_id)
{
irqreturn_t rc = IRQ_NONE;
Acked-by: Thor Thayer <ttha...@opensource.altera.com>
