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| author | Michal Simek <michal.simek@xilinx.com> | 2014-07-09 13:23:55 +0200 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2014-07-09 13:24:50 +0200 |
| commit | ad1d4358e0fdc16017a809ed54f532e68e3c26b6 (patch) | |
| tree | 000d17a8a452e59aedab3954670a1b486c0a6096 /arch/microblaze/include/asm/delay.h | |
| parent | Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/... (diff) | |
| download | linux-ad1d4358e0fdc16017a809ed54f532e68e3c26b6.tar.xz linux-ad1d4358e0fdc16017a809ed54f532e68e3c26b6.zip | |
microblaze: delay.h fix udelay and ndelay for 8 bit args
Based on:
"asm-generic: delay.h fix udelay and ndelay for 8 bit args"
(sha1: a87e553fabe8ceadc6f90889066559234cf194c7)
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'arch/microblaze/include/asm/delay.h')
| -rw-r--r-- | arch/microblaze/include/asm/delay.h | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/arch/microblaze/include/asm/delay.h b/arch/microblaze/include/asm/delay.h index 66fc24c24238..60cb39deb533 100644 --- a/arch/microblaze/include/asm/delay.h +++ b/arch/microblaze/include/asm/delay.h @@ -61,13 +61,29 @@ extern inline void __udelay(unsigned int x) extern void __bad_udelay(void); /* deliberately undefined */ extern void __bad_ndelay(void); /* deliberately undefined */ -#define udelay(n) (__builtin_constant_p(n) ? \ - ((n) > __MAX_UDELAY ? __bad_udelay() : __udelay((n) * (19 * HZ))) : \ - __udelay((n) * (19 * HZ))) +#define udelay(n) \ + ({ \ + if (__builtin_constant_p(n)) { \ + if ((n) / __MAX_UDELAY >= 1) \ + __bad_udelay(); \ + else \ + __udelay((n) * (19 * HZ)); \ + } else { \ + __udelay((n) * (19 * HZ)); \ + } \ + }) -#define ndelay(n) (__builtin_constant_p(n) ? \ - ((n) > __MAX_NDELAY ? __bad_ndelay() : __udelay((n) * HZ)) : \ - __udelay((n) * HZ)) +#define ndelay(n) \ + ({ \ + if (__builtin_constant_p(n)) { \ + if ((n) / __MAX_NDELAY >= 1) \ + __bad_ndelay(); \ + else \ + __udelay((n) * HZ); \ + } else { \ + __udelay((n) * HZ); \ + } \ + }) #define muldiv(a, b, c) (((a)*(b))/(c)) |