AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

MIPS fixes for 4.16-rc5

Browse Source 
A miscellaneous pile of MIPS fixes for 4.16:
  - Move put_compat_sigset() to evade hardened usercopy warnings (4.16)
  - Select ARCH_HAVE_PC_{SERIO,PARPORT} for Loongson64 platforms (4.16)
  - Fix kzalloc() failure handling in ath25 (3.19) and Octeon (4.0)
  - Fix disabling of IPIs during BMIPS suspend (3.19)
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEd80NauSabkiESfLYbAtpk944dnoFAlqhPTwACgkQbAtpk944
 dnq+WA//UR0iGZWc+FlpSAKjvVMWecvjQx81RhoBsFL18TmhDp9dtAVrm+oDmlJB
 /WpnA+BZCM58oEeXYNZ4dc4k4nD9VQTrFksaFJkVKBNyuVEiZbv3u21v6NKbUYBw
 0S4J2YKkUWtLIPFi5aymzPWn1bajY/Q2wi/1REeTIdcVeghWQDd/iShjYpSnvpCY
 XGvZebJyzFVigX404Z7WFDNoO9GhsZwdOMe00nW536ph2LFyCE6U65VzwdmvVZkr
 95kpnfQAb5aYv1/2jFEhyoX2ddhHuCmT+TfJ5Db68dd3AXkV/pdOjcNMdPOhmlFB
 ebDlFw91XKoAT360M/JtQkamZt09Zzl+Ea7lJ7Me4N6JGmEcqIjrZc7tNTUKknnW
 2W8WhrDpuZ2x4x3jx0ckGSvFFYhtkcFqNTktTjMYOSwmSiyd1Txe2VPLSVHy3d3J
 SbE3ioqnbIq+LHiVEqtFxmmsqrfgrh36v+Mc3kihQCCybTji+dGH8GR3bF7ccLOW
 6rpENPPVlP6/A/UNeNfH4d6apjhVBLuo1qdo22KEDKz6o9OUI3UKTKUG9wGhzvho
 rV+2LaYgtn4qmYoqjxBp2NgxZRkuw5TdYOXQL0XQl8te2L7bWyGXqWazfhbwMLpT
 p6yZaMIzPJhpPbhsyh/gTjqqPFmf86lFQW6SXwsbOT1aZnK9tGs=
 =X1dj
 -----END PGP SIGNATURE-----

Merge tag 'mips_fixes_4.16_4' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips

Pull MIPS fixes from James Hogan:
 "A miscellaneous pile of MIPS fixes for 4.16:

   - move put_compat_sigset() to evade hardened usercopy warnings (4.16)

   - select ARCH_HAVE_PC_{SERIO,PARPORT} for Loongson64 platforms (4.16)

   - fix kzalloc() failure handling in ath25 (3.19) and Octeon (4.0)

   - fix disabling of IPIs during BMIPS suspend (3.19)"

* tag 'mips_fixes_4.16_4' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips:
  MIPS: BMIPS: Do not mask IPIs during suspend
  MIPS: Loongson64: Select ARCH_MIGHT_HAVE_PC_SERIO
  MIPS: Loongson64: Select ARCH_MIGHT_HAVE_PC_PARPORT
  signals: Move put_compat_sigset to compat.h to silence hardened usercopy
  MIPS: OCTEON: irq: Check for null return on kzalloc allocation
  MIPS: ath25: Check for kzalloc allocation failure
This commit is contained in:
Linus Torvalds 2018-03-08 10:03:12 -08:00
commit e67548254b
6 changed files with 38 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/mips/ath25/board.c
View File

@ -135,6 +135,8 @@ int __init ath25_find_config(phys_addr_t base, unsigned long size)
}
board_data = kzalloc(BOARD_CONFIG_BUFSZ, GFP_KERNEL);
if (!board_data)
goto error;
ath25_board.config = (struct ath25_boarddata *)board_data;
memcpy_fromio(board_data, bcfg, 0x100);
if (broken_boarddata) {

2
arch/mips/cavium-octeon/octeon-irq.c
View File

@ -2277,6 +2277,8 @@ static int __init octeon_irq_init_cib(struct device_node *ciu_node,
}
host_data = kzalloc(sizeof(*host_data), GFP_KERNEL);
if (!host_data)
return -ENOMEM;
raw_spin_lock_init(&host_data->lock);
addr = of_get_address(ciu_node, 0, NULL, NULL);

8
arch/mips/kernel/smp-bmips.c
View File

@ -168,11 +168,11 @@ static void bmips_prepare_cpus(unsigned int max_cpus)
return;
}
if (request_irq(IPI0_IRQ, bmips_ipi_interrupt, IRQF_PERCPU,
"smp_ipi0", NULL))
if (request_irq(IPI0_IRQ, bmips_ipi_interrupt,
IRQF_PERCPU | IRQF_NO_SUSPEND, "smp_ipi0", NULL))
panic("Can't request IPI0 interrupt");
if (request_irq(IPI1_IRQ, bmips_ipi_interrupt, IRQF_PERCPU,
"smp_ipi1", NULL))
if (request_irq(IPI1_IRQ, bmips_ipi_interrupt,
IRQF_PERCPU | IRQF_NO_SUSPEND, "smp_ipi1", NULL))
panic("Can't request IPI1 interrupt");
}

6
arch/mips/loongson64/Kconfig
View File

@ -7,6 +7,8 @@ choice
config LEMOTE_FULOONG2E
bool "Lemote Fuloong(2e) mini-PC"
select ARCH_SPARSEMEM_ENABLE
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select CEVT_R4K
select CSRC_R4K
select SYS_HAS_CPU_LOONGSON2E
@ -33,6 +35,8 @@ config LEMOTE_FULOONG2E
config LEMOTE_MACH2F
bool "Lemote Loongson 2F family machines"
select ARCH_SPARSEMEM_ENABLE
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select BOARD_SCACHE
select BOOT_ELF32
select CEVT_R4K if ! MIPS_EXTERNAL_TIMER
@ -62,6 +66,8 @@ config LEMOTE_MACH2F
config LOONGSON_MACH3X
bool "Generic Loongson 3 family machines"
select ARCH_SPARSEMEM_ENABLE
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select GENERIC_ISA_DMA_SUPPORT_BROKEN
select BOOT_ELF32
select BOARD_SCACHE

26
include/linux/compat.h
View File

@ -17,6 +17,7 @@
#include <linux/if.h>
#include <linux/fs.h>
#include <linux/aio_abi.h> /* for aio_context_t */
#include <linux/uaccess.h>
#include <linux/unistd.h>
#include <asm/compat.h>
@ -550,8 +551,29 @@ asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);
extern int get_compat_sigset(sigset_t *set, const compat_sigset_t __user *compat);
extern int put_compat_sigset(compat_sigset_t __user *compat,
const sigset_t *set, unsigned int size);
/*
* Defined inline such that size can be compile time constant, which avoids
* CONFIG_HARDENED_USERCOPY complaining about copies from task_struct
*/
static inline int
put_compat_sigset(compat_sigset_t __user *compat, const sigset_t *set,
unsigned int size)
{
/* size <= sizeof(compat_sigset_t) <= sizeof(sigset_t) */
#ifdef __BIG_ENDIAN
compat_sigset_t v;
switch (_NSIG_WORDS) {
case 4: v.sig[7] = (set->sig[3] >> 32); v.sig[6] = set->sig[3];
case 3: v.sig[5] = (set->sig[2] >> 32); v.sig[4] = set->sig[2];
case 2: v.sig[3] = (set->sig[1] >> 32); v.sig[2] = set->sig[1];
case 1: v.sig[1] = (set->sig[0] >> 32); v.sig[0] = set->sig[0];
}
return copy_to_user(compat, &v, size) ? -EFAULT : 0;
#else
return copy_to_user(compat, set, size) ? -EFAULT : 0;
#endif
}
asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,

19
kernel/compat.c
View File

@ -488,25 +488,6 @@ get_compat_sigset(sigset_t *set, const compat_sigset_t __user *compat)
}
EXPORT_SYMBOL_GPL(get_compat_sigset);
int
put_compat_sigset(compat_sigset_t __user *compat, const sigset_t *set,
unsigned int size)
{
/* size <= sizeof(compat_sigset_t) <= sizeof(sigset_t) */
#ifdef __BIG_ENDIAN
compat_sigset_t v;
switch (_NSIG_WORDS) {
case 4: v.sig[7] = (set->sig[3] >> 32); v.sig[6] = set->sig[3];
case 3: v.sig[5] = (set->sig[2] >> 32); v.sig[4] = set->sig[2];
case 2: v.sig[3] = (set->sig[1] >> 32); v.sig[2] = set->sig[1];
case 1: v.sig[1] = (set->sig[0] >> 32); v.sig[0] = set->sig[0];
}
return copy_to_user(compat, &v, size) ? -EFAULT : 0;
#else
return copy_to_user(compat, set, size) ? -EFAULT : 0;
#endif
}
#ifdef CONFIG_NUMA
COMPAT_SYSCALL_DEFINE6(move_pages, pid_t, pid, compat_ulong_t, nr_pages,
compat_uptr_t __user *, pages32,