@@ -285,6 +285,9 @@ pci_bus_to_hose(int bus)
* Note that the returned IO or memory base is a physical address
*/
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpragmas"
+#pragma GCC diagnostic ignored "-Wattribute-alias"
SYSCALL_DEFINE3(pciconfig_iobase, long, which,
unsigned long, bus, unsigned long, devfn)
{
@@ -310,3 +313,4 @@ SYSCALL_DEFINE3(pciconfig_iobase, long, which,
return result;
}
+#pragma GCC diagnostic pop
@@ -203,6 +203,9 @@ void pcibios_setup_phb_io_space(struct pci_controller *hose)
#define IOBASE_ISA_IO 3
#define IOBASE_ISA_MEM 4
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpragmas"
+#pragma GCC diagnostic ignored "-Wattribute-alias"
SYSCALL_DEFINE3(pciconfig_iobase, long, which, unsigned long, in_bus,
unsigned long, in_devfn)
{
@@ -256,6 +259,7 @@ SYSCALL_DEFINE3(pciconfig_iobase, long, which, unsigned long, in_bus,
return -EOPNOTSUPP;
}
+#pragma GCC diagnostic pop
#ifdef CONFIG_NUMA
int pcibus_to_node(struct pci_bus *bus)
@@ -1051,6 +1051,9 @@ struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log,
}
/* We assume to be passed big endian arguments */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpragmas"
+#pragma GCC diagnostic ignored "-Wattribute-alias"
SYSCALL_DEFINE1(rtas, struct rtas_args __user *, uargs)
{
struct rtas_args args;
@@ -1137,6 +1140,7 @@ SYSCALL_DEFINE1(rtas, struct rtas_args __user *, uargs)
return 0;
}
+#pragma GCC diagnostic pop
/*
* Call early during boot, before mem init, to retrieve the RTAS
@@ -1037,6 +1037,9 @@ static int do_setcontext_tm(struct ucontext __user *ucp,
}
#endif
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpragmas"
+#pragma GCC diagnostic ignored "-Wattribute-alias"
#ifdef CONFIG_PPC64
COMPAT_SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx,
struct ucontext __user *, new_ctx, int, ctx_size)
@@ -1132,6 +1135,7 @@ SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx,
set_thread_flag(TIF_RESTOREALL);
return 0;
}
+#pragma GCC diagnostic pop
#ifdef CONFIG_PPC64
COMPAT_SYSCALL_DEFINE0(rt_sigreturn)
@@ -1228,6 +1232,9 @@ SYSCALL_DEFINE0(rt_sigreturn)
return 0;
}
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpragmas"
+#pragma GCC diagnostic ignored "-Wattribute-alias"
#ifdef CONFIG_PPC32
SYSCALL_DEFINE3(debug_setcontext, struct ucontext __user *, ctx,
int, ndbg, struct sig_dbg_op __user *, dbg)
@@ -1333,6 +1340,7 @@ SYSCALL_DEFINE3(debug_setcontext, struct ucontext __user *, ctx,
return 0;
}
#endif
+#pragma GCC diagnostic pop
/*
* OK, we're invoking a handler
@@ -625,6 +625,9 @@ static long setup_trampoline(unsigned int syscall, unsigned int __user *tramp)
/*
* Handle {get,set,swap}_context operations
*/
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpragmas"
+#pragma GCC diagnostic ignored "-Wattribute-alias"
SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx,
struct ucontext __user *, new_ctx, long, ctx_size)
{
@@ -690,6 +693,7 @@ SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx,
set_thread_flag(TIF_RESTOREALL);
return 0;
}
+#pragma GCC diagnostic pop
/*
@@ -62,6 +62,9 @@ static inline long do_mmap2(unsigned long addr, size_t len,
return ret;
}
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpragmas"
+#pragma GCC diagnostic ignored "-Wattribute-alias"
SYSCALL_DEFINE6(mmap2, unsigned long, addr, size_t, len,
unsigned long, prot, unsigned long, flags,
unsigned long, fd, unsigned long, pgoff)
@@ -75,6 +78,7 @@ SYSCALL_DEFINE6(mmap, unsigned long, addr, size_t, len,
{
return do_mmap2(addr, len, prot, flags, fd, offset, PAGE_SHIFT);
}
+#pragma GCC diagnostic pop
#ifdef CONFIG_PPC32
/*
@@ -186,6 +186,9 @@ static void subpage_mark_vma_nohuge(struct mm_struct *mm, unsigned long addr,
* in a 2-bit field won't allow writes to a page that is otherwise
* write-protected.
*/
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpragmas"
+#pragma GCC diagnostic ignored "-Wattribute-alias"
SYSCALL_DEFINE3(subpage_prot, unsigned long, addr,
unsigned long, len, u32 __user *, map)
{
@@ -269,3 +272,4 @@ SYSCALL_DEFINE3(subpage_prot, unsigned long, addr,
up_write(&mm->mmap_sem);
return err;
}
+#pragma GCC diagnostic pop
Latest GCC version emit the following warnings As arch/powerpc code is built with -Werror, this breaks build with GCC 8.1 This patch inhibits those warnings CC arch/powerpc/kernel/syscalls.o In file included from arch/powerpc/kernel/syscalls.c:24: ./include/linux/syscalls.h:233:18: error: 'sys_mmap2' alias between functions of incompatible types 'long int(long unsigned int, size_t, long unsigned int, long unsigned int, long unsigned int, long unsigned int)' {aka 'long int(long unsigned int, long unsigned int, long unsigned int, long unsigned int, long unsigned int, long unsigned int)'} and 'long int(long int, long int, long int, long int, long int, long int)' [-Werror=attribute-alias] asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ ^~~ ./include/linux/syscalls.h:222:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ ./include/linux/syscalls.h:216:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ arch/powerpc/kernel/syscalls.c:65:1: note: in expansion of macro 'SYSCALL_DEFINE6' SYSCALL_DEFINE6(mmap2, unsigned long, addr, size_t, len, ^~~~~~~~~~~~~~~ ./include/linux/syscalls.h:238:18: note: aliased declaration here asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ ^~~~~~~~ ./include/linux/syscalls.h:222:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ ./include/linux/syscalls.h:216:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ arch/powerpc/kernel/syscalls.c:65:1: note: in expansion of macro 'SYSCALL_DEFINE6' SYSCALL_DEFINE6(mmap2, unsigned long, addr, size_t, len, ^~~~~~~~~~~~~~~ ./include/linux/syscalls.h:233:18: error: 'sys_mmap' alias between functions of incompatible types 'long int(long unsigned int, size_t, long unsigned int, long unsigned int, long unsigned int, off_t)' {aka 'long int(long unsigned int, long unsigned int, long unsigned int, long unsigned int, long unsigned int, long int)'} and 'long int(long int, long int, long int, long int, long int, long int)' [-Werror=attribute-alias] asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ ^~~ ./include/linux/syscalls.h:222:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ ./include/linux/syscalls.h:216:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ arch/powerpc/kernel/syscalls.c:72:1: note: in expansion of macro 'SYSCALL_DEFINE6' SYSCALL_DEFINE6(mmap, unsigned long, addr, size_t, len, ^~~~~~~~~~~~~~~ ./include/linux/syscalls.h:238:18: note: aliased declaration here asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ ^~~~~~~~ ./include/linux/syscalls.h:222:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ ./include/linux/syscalls.h:216:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ arch/powerpc/kernel/syscalls.c:72:1: note: in expansion of macro 'SYSCALL_DEFINE6' SYSCALL_DEFINE6(mmap, unsigned long, addr, size_t, len, ^~~~~~~~~~~~~~~ CC arch/powerpc/kernel/signal_32.o In file included from arch/powerpc/kernel/signal_32.c:31: ./include/linux/compat.h:74:18: error: 'compat_sys_swapcontext' alias between functions of incompatible types 'long int(struct ucontext32 *, struct ucontext32 *, int)' and 'long int(long int, long int, long int)' [-Werror=attribute-alias] asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ ^~~~~~~~~~ ./include/linux/compat.h:58:2: note: in expansion of macro 'COMPAT_SYSCALL_DEFINEx' COMPAT_SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/kernel/signal_32.c:1041:1: note: in expansion of macro 'COMPAT_SYSCALL_DEFINE3' COMPAT_SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx, ^~~~~~~~~~~~~~~~~~~~~~ ./include/linux/compat.h:79:18: note: aliased declaration here asmlinkage long __se_compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ ^~~~~~~~~~~~~~~ ./include/linux/compat.h:58:2: note: in expansion of macro 'COMPAT_SYSCALL_DEFINEx' COMPAT_SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/kernel/signal_32.c:1041:1: note: in expansion of macro 'COMPAT_SYSCALL_DEFINE3' COMPAT_SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx, ^~~~~~~~~~~~~~~~~~~~~~ CC arch/powerpc/kernel/signal_64.o In file included from arch/powerpc/kernel/signal_64.c:27: ./include/linux/syscalls.h:233:18: error: 'sys_swapcontext' alias between functions of incompatible types 'long int(struct ucontext *, struct ucontext *, long int)' and 'long int(long int, long int, long int)' [-Werror=attribute-alias] asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ ^~~ ./include/linux/syscalls.h:222:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ ./include/linux/syscalls.h:213:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ arch/powerpc/kernel/signal_64.c:628:1: note: in expansion of macro 'SYSCALL_DEFINE3' SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx, ^~~~~~~~~~~~~~~ ./include/linux/syscalls.h:238:18: note: aliased declaration here asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ ^~~~~~~~ ./include/linux/syscalls.h:222:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ ./include/linux/syscalls.h:213:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ arch/powerpc/kernel/signal_64.c:628:1: note: in expansion of macro 'SYSCALL_DEFINE3' SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx, ^~~~~~~~~~~~~~~ CC arch/powerpc/kernel/rtas.o In file included from arch/powerpc/kernel/rtas.c:29: ./include/linux/syscalls.h:233:18: error: 'sys_rtas' alias between functions of incompatible types 'long int(struct rtas_args *)' and 'long int(long int)' [-Werror=attribute-alias] asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ ^~~ ./include/linux/syscalls.h:222:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ ./include/linux/syscalls.h:211:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ arch/powerpc/kernel/rtas.c:1054:1: note: in expansion of macro 'SYSCALL_DEFINE1' SYSCALL_DEFINE1(rtas, struct rtas_args __user *, uargs) ^~~~~~~~~~~~~~~ ./include/linux/syscalls.h:238:18: note: aliased declaration here asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ ^~~~~~~~ ./include/linux/syscalls.h:222:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ ./include/linux/syscalls.h:211:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ arch/powerpc/kernel/rtas.c:1054:1: note: in expansion of macro 'SYSCALL_DEFINE1' SYSCALL_DEFINE1(rtas, struct rtas_args __user *, uargs) ^~~~~~~~~~~~~~~ CC arch/powerpc/kernel/pci_64.o In file included from arch/powerpc/kernel/pci_64.c:23: ./include/linux/syscalls.h:233:18: error: 'sys_pciconfig_iobase' alias between functions of incompatible types 'long int(long int, long unsigned int, long unsigned int)' and 'long int(long int, long int, long int)' [-Werror=attribute-alias] asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ ^~~ ./include/linux/syscalls.h:222:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ ./include/linux/syscalls.h:213:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ arch/powerpc/kernel/pci_64.c:206:1: note: in expansion of macro 'SYSCALL_DEFINE3' SYSCALL_DEFINE3(pciconfig_iobase, long, which, unsigned long, in_bus, ^~~~~~~~~~~~~~~ ./include/linux/syscalls.h:238:18: note: aliased declaration here asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ ^~~~~~~~ ./include/linux/syscalls.h:222:2: note: in expansion of macro '__SYSCALL_DEFINEx' __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) ^~~~~~~~~~~~~~~~~ ./include/linux/syscalls.h:213:36: note: in expansion of macro 'SYSCALL_DEFINEx' #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) ^~~~~~~~~~~~~~~ arch/powerpc/kernel/pci_64.c:206:1: note: in expansion of macro 'SYSCALL_DEFINE3' SYSCALL_DEFINE3(pciconfig_iobase, long, which, unsigned long, in_bus, ^~~~~~~~~~~~~~~ Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> --- v4: change in pci_32.c was missing v3: added '#pragma GCC diagnostic ignored "-Wpragmas"' to avoid build failure on old GCC arch/powerpc/kernel/pci_32.c | 4 ++++ arch/powerpc/kernel/pci_64.c | 4 ++++ arch/powerpc/kernel/rtas.c | 4 ++++ arch/powerpc/kernel/signal_32.c | 8 ++++++++ arch/powerpc/kernel/signal_64.c | 4 ++++ arch/powerpc/kernel/syscalls.c | 4 ++++ arch/powerpc/mm/subpage-prot.c | 4 ++++ 7 files changed, 32 insertions(+)