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| author |   Arnd Bergmann <arnd@arndb.de> | 2017-02-02 15:43:42 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-02-03 13:01:36 +0100 |
| commit | 22eb36b8142b1f07f23c365e87a5dad6c9f233f1 (patch) | |
| tree | ce2d04c6b75134688627a29ac28504dcf227cc5f /drivers/staging/fbtft/fbtft.h | |
| parent | staging: rtl8192u: move stats_IndicateArray off stack (diff) | |
| download | linux-dev-22eb36b8142b1f07f23c365e87a5dad6c9f233f1.tar.xz linux-dev-22eb36b8142b1f07f23c365e87a5dad6c9f233f1.zip | |
staging: fbtft: change 'gamma' array to u32
Having a local variable of 1024 bytes on 64-bit architectures is a bit
too much, and I ran into this warning while trying to see what functions
use the largest stack:
drivers/staging/fbtft/fbtft-sysfs.c: In function 'store_gamma_curve':
drivers/staging/fbtft/fbtft-sysfs.c:132:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=]
As there is no need for 64-bit gamma values (on 32-bit architectures,
we don't use those either), I'm changing the type from 'unsigned long'
to 'u32' here, which cuts the required space in half everywhere.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/fbtft/fbtft.h')
| -rw-r--r-- | drivers/staging/fbtft/fbtft.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/staging/fbtft/fbtft.h b/drivers/staging/fbtft/fbtft.h index b09804773ff2..44cf94d160d4 100644 --- a/drivers/staging/fbtft/fbtft.h +++ b/drivers/staging/fbtft/fbtft.h @@ -92,7 +92,7 @@ struct fbtft_ops { void (*unregister_backlight)(struct fbtft_par *par); int (*set_var)(struct fbtft_par *par); - int (*set_gamma)(struct fbtft_par *par, unsigned long *curves); + int (*set_gamma)(struct fbtft_par *par, u32 *curves); }; /** @@ -231,7 +231,7 @@ struct fbtft_par { s16 *init_sequence; struct { struct mutex lock; - unsigned long *curves; + u32 *curves; int num_values; int num_curves; } gamma; |