Skip to main content

Browse the archive

Revision 2b6c53b1504865728a6dfad3e720918a2f89f3a5 authored by Jon Medhurst (Tixy) on 20 August 2014, 12:41:04 UTC, committed by Tomi Valkeinen on 26 August 2014, 09:50:27 UTC 
video: ARM CLCD: Fix calculation of bits-per-pixel
 
If the device-tree specifies a max-memory-bandwidth property then the
CLCD driver uses that to calculate the bits-per-pixel supported,
however, this calculation is faulty for two reasons.

1. It doesn't ensure that the result is a sane value, i.e. a power of 2
   and <= 32 as the rest of the code assumes.

2. It uses the displayed resolution and calculates the average bandwidth
   across the whole frame. It should instead calculate the peak
   bandwidth based on the pixel clock.

This patch fixes both the above.

Signed-off-by: Jon Medhurst <tixy@linaro.org>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
1 parent 754d561
Raw File
audit.c 
#include <linux/init.h>
#include <linux/types.h>
#include <linux/audit.h>
#include <asm/unistd.h>

static unsigned dir_class[] = {
#include <asm-generic/audit_dir_write.h>
~0U
};

static unsigned read_class[] = {
#include <asm-generic/audit_read.h>
~0U
};

static unsigned write_class[] = {
#include <asm-generic/audit_write.h>
~0U
};

static unsigned chattr_class[] = {
#include <asm-generic/audit_change_attr.h>
~0U
};

static unsigned signal_class[] = {
#include <asm-generic/audit_signal.h>
~0U
};

int audit_classify_arch(int arch)
{
	if (audit_is_compat(arch))
		return 1;
	else
		return 0;
}

int audit_classify_syscall(int abi, unsigned syscall)
{
	if (audit_is_compat(abi))
		return audit_classify_compat_syscall(abi, syscall);

	switch(syscall) {
#ifdef __NR_open
	case __NR_open:
		return 2;
#endif
#ifdef __NR_openat
	case __NR_openat:
		return 3;
#endif
#ifdef __NR_socketcall
	case __NR_socketcall:
		return 4;
#endif
	case __NR_execve:
		return 5;
	default:
		return 0;
	}
}

static int __init audit_classes_init(void)
{
#ifdef CONFIG_AUDIT_COMPAT_GENERIC
	audit_register_class(AUDIT_CLASS_WRITE_32, compat_write_class);
	audit_register_class(AUDIT_CLASS_READ_32, compat_read_class);
	audit_register_class(AUDIT_CLASS_DIR_WRITE_32, compat_dir_class);
	audit_register_class(AUDIT_CLASS_CHATTR_32, compat_chattr_class);
	audit_register_class(AUDIT_CLASS_SIGNAL_32, compat_signal_class);
#endif
	audit_register_class(AUDIT_CLASS_WRITE, write_class);
	audit_register_class(AUDIT_CLASS_READ, read_class);
	audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class);
	audit_register_class(AUDIT_CLASS_CHATTR, chattr_class);
	audit_register_class(AUDIT_CLASS_SIGNAL, signal_class);
	return 0;
}

__initcall(audit_classes_init);
back to top