Some automated builds report a stack frame size in excess
of 2 kB for iqs626_probe(); the culprit appears to be the
call to iqs626_parse_prop().
To solve this problem, specify noinline_for_stack for all
of the iqs626_parse_*() helper functions which are called
inside a for loop within iqs626_parse_prop().
As a result, a build with '-Wframe-larger-than' as low as
512 is free of any such warnings.
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Jeff LaBundy <jeff@xxxxxxxxxxx>
---
drivers/input/misc/iqs626a.c | 21 ++++++++++++---------
1 file changed, 12 insertions(+), 9 deletions(-)
diff --git a/drivers/input/misc/iqs626a.c b/drivers/input/misc/iqs626a.c
index d57e996732cf..23b5dd9552dc 100644
--- a/drivers/input/misc/iqs626a.c
+++ b/drivers/input/misc/iqs626a.c
@@ -456,9 +456,10 @@ struct iqs626_private {
unsigned int suspend_mode;
};
-static int iqs626_parse_events(struct iqs626_private *iqs626,
- const struct fwnode_handle *ch_node,
- enum iqs626_ch_id ch_id)
+static noinline_for_stack int
+iqs626_parse_events(struct iqs626_private *iqs626,
+ const struct fwnode_handle *ch_node,
+ enum iqs626_ch_id ch_id)
{
struct iqs626_sys_reg *sys_reg = &iqs626->sys_reg;
struct i2c_client *client = iqs626->client;
@@ -604,9 +605,10 @@ static int iqs626_parse_events(struct iqs626_private *iqs626,
return 0;
}
-static int iqs626_parse_ati_target(struct iqs626_private *iqs626,
- const struct fwnode_handle *ch_node,
- enum iqs626_ch_id ch_id)
+static noinline_for_stack int
+iqs626_parse_ati_target(struct iqs626_private *iqs626,
+ const struct fwnode_handle *ch_node,
+ enum iqs626_ch_id ch_id)
{
struct iqs626_sys_reg *sys_reg = &iqs626->sys_reg;
struct i2c_client *client = iqs626->client;
@@ -885,9 +887,10 @@ static int iqs626_parse_trackpad(struct iqs626_private *iqs626,
return 0;
}
-static int iqs626_parse_channel(struct iqs626_private *iqs626,
- const struct fwnode_handle *ch_node,
- enum iqs626_ch_id ch_id)
+static noinline_for_stack int
+iqs626_parse_channel(struct iqs626_private *iqs626,
+ const struct fwnode_handle *ch_node,
+ enum iqs626_ch_id ch_id)
{
struct iqs626_sys_reg *sys_reg = &iqs626->sys_reg;
struct i2c_client *client = iqs626->client;
--
2.25.1
