Hi Dmitry,
On 03/09/2018 05:32 PM, Dmitry Torokhov wrote:
On Fri, Mar 09, 2018 at 04:42:08PM -0600, Gustavo A. R. Silva wrote:
In preparation to enabling -Wvla, remove VLA and replace it
with a fixed-length array instead.
Fixed as part of the directive to remove all VLAs from
the kernel: https://lkml.org/lkml/2018/3/7/621
Signed-off-by: Gustavo A. R. Silva <garsilva@xxxxxxxxxxxxxx>
---
drivers/input/keyboard/stmpe-keypad.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/input/keyboard/stmpe-keypad.c b/drivers/input/keyboard/stmpe-keypad.c
index 8c6c0b9..cfa1dbe 100644
--- a/drivers/input/keyboard/stmpe-keypad.c
+++ b/drivers/input/keyboard/stmpe-keypad.c
@@ -48,6 +48,8 @@
#define STMPE_KEYPAD_KEYMAP_MAX_SIZE \
(STMPE_KEYPAD_MAX_ROWS * STMPE_KEYPAD_MAX_COLS)
+#define MAX_NUM_DATA 5
+
/**
* struct stmpe_keypad_variant - model-specific attributes
* @auto_increment: whether the KPC_DATA_BYTE register address
@@ -74,7 +76,7 @@ struct stmpe_keypad_variant {
static const struct stmpe_keypad_variant stmpe_keypad_variants[] = {
[STMPE1601] = {
.auto_increment = true,
- .num_data = 5,
+ .num_data = MAX_NUM_DATA,
.num_normal_data = 3,
.max_cols = 8,
.max_rows = 8,
@@ -84,7 +86,7 @@ static const struct stmpe_keypad_variant stmpe_keypad_variants[] = {
[STMPE2401] = {
.auto_increment = false,
.set_pullup = true,
- .num_data = 3,
+ .num_data = MAX_NUM_DATA - 2,
Logically MAX_NUM_DATA - 2 does not mean anything, it is simply a way
for you to get to 3, so I'd rather we did not do that.
Yeah. I agree.
Can we do
#define STMPE1601_NUM_DATA 5
#define STMPE2401_NUM_DATA 3
#define STMPE2403_NUM_DATA 5
#define MAX_NUM_DATA max3(STMPE1601_NUM_DATA, \
STMPE2401_NUM_DATA, \
STMPE2403_NUM_DATA)
or simply
/* Make sure it covers all cases above */
#define MAX_NUM_DATA 5
This one works just fine.
I'll send v2 of this patch shortly.
Thanks for the feedback.
I appreciate it.
--
Gustavo
.num_normal_data = 2,
.max_cols = 8,
.max_rows = 12,
@@ -94,7 +96,7 @@ static const struct stmpe_keypad_variant stmpe_keypad_variants[] = {
[STMPE2403] = {
.auto_increment = true,
.set_pullup = true,
- .num_data = 5,
+ .num_data = MAX_NUM_DATA,
.num_normal_data = 3,
.max_cols = 8,
.max_rows = 12,
@@ -156,7 +158,7 @@ static irqreturn_t stmpe_keypad_irq(int irq, void *dev)
struct stmpe_keypad *keypad = dev;
struct input_dev *input = keypad->input;
const struct stmpe_keypad_variant *variant = keypad->variant;
- u8 fifo[variant->num_data];
+ u8 fifo[MAX_NUM_DATA];
int ret;
int i;
--
2.7.4
Thanks.
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