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authorAl Viro <viro@zeniv.linux.org.uk>2020-05-22 20:02:02 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2020-07-27 14:33:10 -0400
commitbb1a773d5b6bf018bf84fdb3fbba01d3ef54e2c9 (patch)
tree0eefee686c29f4ab32a35c83e4c0f61ae2a8d813 /arch/sparc/kernel/process_64.c
parentMerge branch 'work.fdpic' into regset.followup (diff)
downloadwireguard-linux-bb1a773d5b6bf018bf84fdb3fbba01d3ef54e2c9.tar.xz
wireguard-linux-bb1a773d5b6bf018bf84fdb3fbba01d3ef54e2c9.zip
kill unused dump_fpu() instances
dump_fpu() is used only on the architectures that support elf and have neither CORE_DUMP_USE_REGSET nor ELF_CORE_COPY_FPREGS defined. Currently that's csky, m68k, microblaze, nds32 and unicore32. The rest of the instances are dead code. NB: THIS MUST GO AFTER ELF_FDPIC CONVERSION Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/sparc/kernel/process_64.c')
-rw-r--r--arch/sparc/kernel/process_64.c66
1 files changed, 0 insertions, 66 deletions
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index 54945eacd3b5..c31b2ac70e3c 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -700,72 +700,6 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
return 0;
}
-typedef struct {
- union {
- unsigned int pr_regs[32];
- unsigned long pr_dregs[16];
- } pr_fr;
- unsigned int __unused;
- unsigned int pr_fsr;
- unsigned char pr_qcnt;
- unsigned char pr_q_entrysize;
- unsigned char pr_en;
- unsigned int pr_q[64];
-} elf_fpregset_t32;
-
-/*
- * fill in the fpu structure for a core dump.
- */
-int dump_fpu (struct pt_regs * regs, elf_fpregset_t * fpregs)
-{
- unsigned long *kfpregs = current_thread_info()->fpregs;
- unsigned long fprs = current_thread_info()->fpsaved[0];
-
- if (test_thread_flag(TIF_32BIT)) {
- elf_fpregset_t32 *fpregs32 = (elf_fpregset_t32 *)fpregs;
-
- if (fprs & FPRS_DL)
- memcpy(&fpregs32->pr_fr.pr_regs[0], kfpregs,
- sizeof(unsigned int) * 32);
- else
- memset(&fpregs32->pr_fr.pr_regs[0], 0,
- sizeof(unsigned int) * 32);
- fpregs32->pr_qcnt = 0;
- fpregs32->pr_q_entrysize = 8;
- memset(&fpregs32->pr_q[0], 0,
- (sizeof(unsigned int) * 64));
- if (fprs & FPRS_FEF) {
- fpregs32->pr_fsr = (unsigned int) current_thread_info()->xfsr[0];
- fpregs32->pr_en = 1;
- } else {
- fpregs32->pr_fsr = 0;
- fpregs32->pr_en = 0;
- }
- } else {
- if(fprs & FPRS_DL)
- memcpy(&fpregs->pr_regs[0], kfpregs,
- sizeof(unsigned int) * 32);
- else
- memset(&fpregs->pr_regs[0], 0,
- sizeof(unsigned int) * 32);
- if(fprs & FPRS_DU)
- memcpy(&fpregs->pr_regs[16], kfpregs+16,
- sizeof(unsigned int) * 32);
- else
- memset(&fpregs->pr_regs[16], 0,
- sizeof(unsigned int) * 32);
- if(fprs & FPRS_FEF) {
- fpregs->pr_fsr = current_thread_info()->xfsr[0];
- fpregs->pr_gsr = current_thread_info()->gsr[0];
- } else {
- fpregs->pr_fsr = fpregs->pr_gsr = 0;
- }
- fpregs->pr_fprs = fprs;
- }
- return 1;
-}
-EXPORT_SYMBOL(dump_fpu);
-
unsigned long get_wchan(struct task_struct *task)
{
unsigned long pc, fp, bias = 0;