mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Generic MMIO clocksource support
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*/
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#include <linux/clocksource.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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struct clocksource_mmio {
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void __iomem *reg;
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struct clocksource clksrc;
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};
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static inline struct clocksource_mmio *to_mmio_clksrc(struct clocksource *c)
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{
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return container_of(c, struct clocksource_mmio, clksrc);
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}
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u64 clocksource_mmio_readl_up(struct clocksource *c)
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{
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return (u64)readl_relaxed(to_mmio_clksrc(c)->reg);
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}
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u64 clocksource_mmio_readl_down(struct clocksource *c)
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{
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return ~(u64)readl_relaxed(to_mmio_clksrc(c)->reg) & c->mask;
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}
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u64 clocksource_mmio_readw_up(struct clocksource *c)
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{
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return (u64)readw_relaxed(to_mmio_clksrc(c)->reg);
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}
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u64 clocksource_mmio_readw_down(struct clocksource *c)
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{
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return ~(u64)readw_relaxed(to_mmio_clksrc(c)->reg) & c->mask;
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}
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/**
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* clocksource_mmio_init - Initialize a simple mmio based clocksource
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* @base: Virtual address of the clock readout register
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* @name: Name of the clocksource
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* @hz: Frequency of the clocksource in Hz
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* @rating: Rating of the clocksource
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* @bits: Number of valid bits
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* @read: One of clocksource_mmio_read*() above
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*/
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int __init clocksource_mmio_init(void __iomem *base, const char *name,
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unsigned long hz, int rating, unsigned bits,
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u64 (*read)(struct clocksource *))
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{
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struct clocksource_mmio *cs;
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if (bits > 64 || bits < 16)
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return -EINVAL;
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cs = kzalloc_obj(struct clocksource_mmio);
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if (!cs)
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return -ENOMEM;
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cs->reg = base;
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cs->clksrc.name = name;
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cs->clksrc.rating = rating;
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cs->clksrc.read = read;
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cs->clksrc.mask = CLOCKSOURCE_MASK(bits);
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cs->clksrc.flags = CLOCK_SOURCE_IS_CONTINUOUS;
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return clocksource_register_hz(&cs->clksrc, hz);
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}
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