Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/mipi-dbi: Make mipi_dbi_command_stackbuf() data parameter const
mipi_dbi_command_stackbuf() copies the passed buffer data, so it can be
const.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200316164249.6234-1-geert+renesas@glider.be
authored by
Geert Uytterhoeven
and committed by
Sam Ravnborg
f019190b
92e513fb
+5
-3
+2
-1
drivers/gpu/drm/drm_mipi_dbi.c
+2
-1
drivers/gpu/drm/drm_mipi_dbi.c
···
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EXPORT_SYMBOL(mipi_dbi_command_buf);
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/* This should only be used by mipi_dbi_command() */
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int mipi_dbi_command_stackbuf(struct mipi_dbi *dbi, u8 cmd, u8 *data, size_t len)
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int mipi_dbi_command_stackbuf(struct mipi_dbi *dbi, u8 cmd, const u8 *data,
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size_t len)
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{
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u8 *buf;
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int ret;
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-2
include/drm/drm_mipi_dbi.h
+3
-2
include/drm/drm_mipi_dbi.h
···
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int mipi_dbi_command_read(struct mipi_dbi *dbi, u8 cmd, u8 *val);
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int mipi_dbi_command_buf(struct mipi_dbi *dbi, u8 cmd, u8 *data, size_t len);
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int mipi_dbi_command_stackbuf(struct mipi_dbi *dbi, u8 cmd, u8 *data, size_t len);
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int mipi_dbi_command_stackbuf(struct mipi_dbi *dbi, u8 cmd, const u8 *data,
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size_t len);
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int mipi_dbi_buf_copy(void *dst, struct drm_framebuffer *fb,
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struct drm_rect *clip, bool swap);
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/**
···
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*/
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#define mipi_dbi_command(dbi, cmd, seq...) \
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({ \
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u8 d[] = { seq }; \
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const u8 d[] = { seq }; \
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mipi_dbi_command_stackbuf(dbi, cmd, d, ARRAY_SIZE(d)); \
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})
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