#include /* * Not defined anywhere else, probably, just to make sure we * catch future flags */ #define SCHED_POLICY_MASK 0xff #ifndef SCHED_DEADLINE #define SCHED_DEADLINE 6 #endif #ifndef SCHED_RESET_ON_FORK #define SCHED_RESET_ON_FORK 0x40000000 #endif static size_t syscall_arg__scnprintf_sched_policy(char *bf, size_t size, struct syscall_arg *arg) { const char *policies[] = { "NORMAL", "FIFO", "RR", "BATCH", "ISO", "IDLE", "DEADLINE", }; size_t printed; int policy = arg->val, flags = policy & ~SCHED_POLICY_MASK; policy &= SCHED_POLICY_MASK; if (policy <= SCHED_DEADLINE) printed = scnprintf(bf, size, "%s", policies[policy]); else printed = scnprintf(bf, size, "%#x", policy); #define P_POLICY_FLAG(n) \ if (flags & SCHED_##n) { \ printed += scnprintf(bf + printed, size - printed, "|%s", #n); \ flags &= ~SCHED_##n; \ } P_POLICY_FLAG(RESET_ON_FORK); #undef P_POLICY_FLAG if (flags) printed += scnprintf(bf + printed, size - printed, "|%#x", flags); return printed; } #define SCA_SCHED_POLICY syscall_arg__scnprintf_sched_policy maclite-cleanup'>emaclite-cleanup net-next plumbingsTobias Klauser
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authorzhong jiang <zhongjiang@huawei.com>2017-01-24 15:18:52 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-24 16:26:14 -0800
commit3277953de2f31dd03c6375e9a9f680ac37fc9d27 (patch)
tree6ba22924faa1b82ef2f0277db10a3f5abdc44157 /sound/firewire/dice/dice.c
parent3705ccfdd1e8b539225ce20e3925a945cc788d67 (diff)
mm: do not export ioremap_page_range symbol for external module
Recently, I've found cases in which ioremap_page_range was used incorrectly, in external modules, leading to crashes. This can be partly attributed to the fact that ioremap_page_range is lower-level, with fewer protections, as compared to the other functions that an external module would typically call. Those include: ioremap_cache ioremap_nocache ioremap_prot ioremap_uc ioremap_wc ioremap_wt ...each of which wraps __ioremap_caller, which in turn provides a safer way to achieve the mapping. Therefore, stop EXPORT-ing ioremap_page_range. Link: http://lkml.kernel.org/r/1485173220-29010-1-git-send-email-zhongjiang@huawei.com Signed-off-by: zhong jiang <zhongjiang@huawei.com> Reviewed-by: John Hubbard <jhubbard@nvidia.com> Suggested-by: John Hubbard <jhubbard@nvidia.com> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'sound/firewire/dice/dice.c')