diff options
| author | Colin Ian King <colin.king@canonical.com> | 2017-11-28 19:23:39 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2017-12-02 22:42:33 +0100 |
| commit | e2843cb6cd6ba433d18d87e3e922b6e49ecccf01 (patch) | |
| tree | 19a4a01fe75ccad32edaeb4244f1c153c92c0cca | |
| parent | gpio: it87: fix mojibake in module metadata (diff) | |
| download | linux-e2843cb6cd6ba433d18d87e3e922b6e49ecccf01.tar.xz linux-e2843cb6cd6ba433d18d87e3e922b6e49ecccf01.zip | |
gpio: gpio-stmpe: make various char arrays static const, shrinks object size
Don't populate the read-only arrays edge_det_values, rise_values and
fall_values on the stack but instead make them static and constify them.
Makes the object code smaller by over 240 bytes:
Before:
text data bss dec hex filename
9525 2520 192 12237 2fcd drivers/gpio/gpio-stmpe.o
After:
text data bss dec hex filename
9025 2776 192 11993 2ed9 drivers/gpio/gpio-stmpe.o
(gcc version 7.2.0 x86_64)
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| -rw-r--r-- | drivers/gpio/gpio-stmpe.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/drivers/gpio/gpio-stmpe.c b/drivers/gpio/gpio-stmpe.c index e6e5cca624a7..e3d048e65339 100644 --- a/drivers/gpio/gpio-stmpe.c +++ b/drivers/gpio/gpio-stmpe.c @@ -273,15 +273,21 @@ static void stmpe_dbg_show_one(struct seq_file *s, u8 fall_reg; u8 irqen_reg; - char *edge_det_values[] = {"edge-inactive", - "edge-asserted", - "not-supported"}; - char *rise_values[] = {"no-rising-edge-detection", - "rising-edge-detection", - "not-supported"}; - char *fall_values[] = {"no-falling-edge-detection", - "falling-edge-detection", - "not-supported"}; + static const char * const edge_det_values[] = { + "edge-inactive", + "edge-asserted", + "not-supported" + }; + static const char * const rise_values[] = { + "no-rising-edge-detection", + "rising-edge-detection", + "not-supported" + }; + static const char * const fall_values[] = { + "no-falling-edge-detection", + "falling-edge-detection", + "not-supported" + }; #define NOT_SUPPORTED_IDX 2 u8 edge_det = NOT_SUPPORTED_IDX; u8 rise = NOT_SUPPORTED_IDX; |