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media: solo6x10: replace max(a, min(b, c)) by clamp(b, a, c)

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This patch replaces max(a, min(b, c)) by clamp(b, a, c) in the solo6x10
driver.  This improves the readability and more importantly, for the
solo6x10-p2m.c file, this reduces on my system (x86-64, gcc 13):

 - the preprocessed size from 121 MiB to 4.5 MiB;

 - the build CPU time from 46.8 s to 1.6 s;

 - the build memory from 2786 MiB to 98MiB.

In fine, this allows this relatively simple C file to be built on a
32-bit system.

Reported-by: Jiri Slaby <jirislaby@gmail.com>
Closes: https://lore.kernel.org/lkml/18c6df0d-45ed-450c-9eda-95160a2bbb8e@gmail.com/
Cc:  <stable@vger.kernel.org> # v6.7+
Suggested-by: David Laight <David.Laight@ACULAB.COM>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: David Laight <David.Laight@ACULAB.COM>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Aurelien Jarno 2024-01-13 19:33:31 +01:00 committed by Linus Torvalds
parent 978ffcbf00
commit 31e97d7c9a
1 changed files with 5 additions and 5 deletions
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10
drivers/media/pci/solo6x10/solo6x10-offsets.h
View File

@ -57,16 +57,16 @@
#define SOLO_MP4E_EXT_ADDR(__solo) \
(SOLO_EREF_EXT_ADDR(__solo) + SOLO_EREF_EXT_AREA(__solo))
#define SOLO_MP4E_EXT_SIZE(__solo) \
max((__solo->nr_chans * 0x00080000), \
min(((__solo->sdram_size - SOLO_MP4E_EXT_ADDR(__solo)) - \
__SOLO_JPEG_MIN_SIZE(__solo)), 0x00ff0000))
clamp(__solo->sdram_size - SOLO_MP4E_EXT_ADDR(__solo) - \
__SOLO_JPEG_MIN_SIZE(__solo), \
__solo->nr_chans * 0x00080000, 0x00ff0000)
#define __SOLO_JPEG_MIN_SIZE(__solo) (__solo->nr_chans * 0x00080000)
#define SOLO_JPEG_EXT_ADDR(__solo) \
(SOLO_MP4E_EXT_ADDR(__solo) + SOLO_MP4E_EXT_SIZE(__solo))
#define SOLO_JPEG_EXT_SIZE(__solo) \
max(__SOLO_JPEG_MIN_SIZE(__solo), \
min((__solo->sdram_size - SOLO_JPEG_EXT_ADDR(__solo)), 0x00ff0000))
clamp(__solo->sdram_size - SOLO_JPEG_EXT_ADDR(__solo), \
__SOLO_JPEG_MIN_SIZE(__solo), 0x00ff0000)
#define SOLO_SDRAM_END(__solo) \
(SOLO_JPEG_EXT_ADDR(__solo) + SOLO_JPEG_EXT_SIZE(__solo))