kernel.git/arch/nds32/include, branch linux-4.19.y

nds32: fix access_ok() checks in get/put_user

2022-03-28T06:41:44Z

commit 8926d88ced46700bf6117ceaf391480b943ea9f4 upstream. The get_user()/put_user() functions are meant to check for access_ok(), while the __get_user()/__put_user() functions don't. This broke in 4.19 for nds32, when it gained an extraneous check in __get_user(), but lost the check it needs in __put_user(). Fixes: 487913ab18c2 ("nds32: Extract the checking and getting pointer to a macro") Cc: stable@vger.kernel.org @ v4.19+ Reviewed-by: Christoph Hellwig Signed-off-by: Arnd Bergmann Signed-off-by: Greg Kroah-Hartman

nds32: Fix bug in bitfield.h

2019-12-01T08:17:18Z

[ Upstream commit 9aaafac8cffa1c1edb66e19a63841b7c86be07ca ] There two bitfield bug for perfomance counter in bitfield.h: PFM_CTL_offSEL1 21 --> 16 PFM_CTL_offSEL2 27 --> 22 This commit fix it. Signed-off-by: Nickhu Acked-by: Greentime Hu Signed-off-by: Greentime Hu Signed-off-by: Sasha Levin

mm: make the __PAGETABLE_PxD_FOLDED defines non-empty

2018-12-29T12:37:57Z

[ Upstream commit a8874e7e8a8896f2b6c641f4b8e2473eafd35204 ] Change the currently empty defines for __PAGETABLE_PMD_FOLDED, __PAGETABLE_PUD_FOLDED and __PAGETABLE_P4D_FOLDED to return 1. This makes it possible to use __is_defined() to test if the preprocessor define exists. Acked-by: Kirill A. Shutemov Signed-off-by: Martin Schwidefsky Signed-off-by: Sasha Levin

nds32: fix build error because of wrong semicolon

2018-09-04T06:45:20Z

It shall be removed in the define usage. We shall not put a semicolon there. /kisskb/src/arch/nds32/include/asm/elf.h:126:29: error: expected '}' before ';' token #define ELF_DATA ELFDATA2LSB; ^ /kisskb/src/fs/proc/kcore.c:318:17: note: in expansion of macro 'ELF_DATA' [EI_DATA] = ELF_DATA, ^~~~~~~~ /kisskb/src/fs/proc/kcore.c:312:15: note: to match this '{' .e_ident = { ^ /kisskb/src/scripts/Makefile.build:307: recipe for target 'fs/proc/kcore.o' failed Signed-off-by: Greentime Hu

nds32: Add macro definition for offset of lp register on stack

2018-09-04T06:45:19Z

Use macro to replace the magic number. Signed-off-by: Zong Li Acked-by: Greentime Hu Signed-off-by: Greentime Hu

nds32/ftrace: Support dynamic function tracer

2018-09-04T06:45:18Z

This patch contains the implementation of dynamic function tracer. The mcount call is composed of three instructions, so there are three nop for enough placeholder. Signed-off-by: Zong Li Acked-by: Greentime Hu Signed-off-by: Greentime Hu

nds32/ftrace: Support static function tracer

2018-09-04T06:45:17Z

This patch support the static function tracer. On nds32 ABI, we need to always push return address to stack for __builtin_return_address can work correctly, otherwise, it will get the wrong value of $lp at leaf function. Signed-off-by: Zong Li Acked-by: Greentime Hu Signed-off-by: Greentime Hu

nds32: Extract the checking and getting pointer to a macro

2018-09-04T06:45:17Z

Signed-off-by: Zong Li Acked-by: Greentime Hu Signed-off-by: Greentime Hu

nds32: Clean up the coding style

2018-09-04T06:45:16Z

1. Adjust indentation. 2. Unify argument name of each macro. 3. Add space after comma in parameters list. 4. Add space after 'if' keyword. 5. Replace space by tab. 6. Change asm volatile to __asm__ __volatile__ Signed-off-by: Zong Li Acked-by: Greentime Hu Signed-off-by: Greentime Hu

nds32: Fix get_user/put_user macro expand pointer problem

2018-09-04T06:45:16Z

The pointer argument of macro need to be taken out once first, and then use the new pointer in the macro body. In kernel/trace/trace.c, get_user(ch, ubuf++) causes the unexpected increment after expand the macro. Signed-off-by: Zong Li Acked-by: Greentime Hu Signed-off-by: Greentime Hu