MIPS: Remove "weak" from get_c0_fdc_int() declaration
Weak header file declarations are error-prone because they make every
definition weak, and the linker chooses one based on link order (see
10629d711ed7 ("PCI: Remove __weak annotation from pcibios_get_phb_of_node
decl")).
The most elegant solution is to have a weak default implementation and
allow a strong function to override it. Then we don't have to test
whether a definition is present, and if there are ever multiple strong
definitions, we get a link error instead of calling a random definition.
Add a weak get_c0_fdc_int() definition with the default code and remove the
weak annotation from the declaration.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10687/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/drivers/tty/mips_ejtag_fdc.c b/drivers/tty/mips_ejtag_fdc.c
index 358323c..a8c8cfd 100644
--- a/drivers/tty/mips_ejtag_fdc.c
+++ b/drivers/tty/mips_ejtag_fdc.c
@@ -879,6 +879,11 @@
.chars_in_buffer = mips_ejtag_fdc_tty_chars_in_buffer,
};
+int __weak get_c0_fdc_int(void)
+{
+ return -1;
+}
+
static int mips_ejtag_fdc_tty_probe(struct mips_cdmm_device *dev)
{
int ret, nport;
@@ -967,9 +972,7 @@
wake_up_process(priv->thread);
/* Look for an FDC IRQ */
- priv->irq = -1;
- if (get_c0_fdc_int)
- priv->irq = get_c0_fdc_int();
+ priv->irq = get_c0_fdc_int();
/* Try requesting the IRQ */
if (priv->irq >= 0) {