MIPS: Delete unused code in linux32.c (48ae93fd) · Commits · 戴 / test

The A() & AA() macros have been unused since commit ("[MIPS] Use SYSVIPC_COMPAT to fix various problems on N32"), which switched to the more standard compat_ptr(). RLIM_INFINITY32, RESOURCE32() & struct rlimit32 have been present but unused since the beginning of the git era. Remove the dead code. Signed-off-by:

Paul Burton <paul.burton@mips.com> Patchwork: https://patchwork.linux-mips.org/patch/20108/ Cc: James Hogan <jhogan@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org

arch/mips/kernel/linux32.c

+0 −19

Original line number	Diff line number	Diff line
		@@ -43,17 +43,6 @@
		#include <asm/mmu_context.h>
		#include <asm/mman.h>

		/* Use this to get at 32-bit user passed pointers. */
		/* A() macro should be used for places where you e.g.
		have some internal variable u32 and just want to get
		rid of a compiler warning. AA() has to be used in
		places where you want to convert a function argument
		to 32bit pointer or when you e.g. access pt_regs
		structure and want to consider 32bit registers only.
		*/
		#define A(__x) ((unsigned long)(__x))
		#define AA(__x) ((unsigned long)((int)__x))

		#ifdef __MIPSEB__
		#define merge_64(r1, r2) ((((r1) & 0xffffffffUL) << 32) + ((r2) & 0xffffffffUL))
		#endif
		@@ -61,14 +50,6 @@
		#define merge_64(r1, r2) ((((r2) & 0xffffffffUL) << 32) + ((r1) & 0xffffffffUL))
		#endif

		#define RLIM_INFINITY32 0x7fffffff
		#define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x)

		struct rlimit32 {
		int rlim_cur;
		int rlim_max;
		};

		SYSCALL_DEFINE4(32_truncate64, const char __user *, path,
		unsigned long, __dummy, unsigned long, a2, unsigned long, a3)
		{

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