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 <gust...@embeddedor.com> --- Changes in v2: - Update the code based on Dmitry Torokhov comments. Thanks Dmitry. drivers/input/keyboard/stmpe-keypad.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/drivers/input/keyboard/stmpe-keypad.c b/drivers/input/keyboard/stmpe-keypad.c index 8c6c0b9..d69e631 100644 --- a/drivers/input/keyboard/stmpe-keypad.c +++ b/drivers/input/keyboard/stmpe-keypad.c @@ -48,6 +48,14 @@ #define STMPE_KEYPAD_KEYMAP_MAX_SIZE \ (STMPE_KEYPAD_MAX_ROWS * STMPE_KEYPAD_MAX_COLS) + +#define STMPE1601_NUM_DATA 5 +#define STMPE2401_NUM_DATA 3 +#define STMPE2403_NUM_DATA 5 + +/* Make sure it covers all cases above */ +#define MAX_NUM_DATA 5 + /** * struct stmpe_keypad_variant - model-specific attributes * @auto_increment: whether the KPC_DATA_BYTE register address @@ -74,7 +82,7 @@ struct stmpe_keypad_variant { static const struct stmpe_keypad_variant stmpe_keypad_variants[] = { [STMPE1601] = { .auto_increment = true, - .num_data = 5, + .num_data = STMPE1601_NUM_DATA, .num_normal_data = 3, .max_cols = 8, .max_rows = 8, @@ -84,7 +92,7 @@ static const struct stmpe_keypad_variant stmpe_keypad_variants[] = { [STMPE2401] = { .auto_increment = false, .set_pullup = true, - .num_data = 3, + .num_data = STMPE2401_NUM_DATA, .num_normal_data = 2, .max_cols = 8, .max_rows = 12, @@ -94,7 +102,7 @@ static const struct stmpe_keypad_variant stmpe_keypad_variants[] = { [STMPE2403] = { .auto_increment = true, .set_pullup = true, - .num_data = 5, + .num_data = STMPE2403_NUM_DATA, .num_normal_data = 3, .max_cols = 8, .max_rows = 12, @@ -156,7 +164,7 @@ 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
