From: Bart Van Assche bvanassche@acm.org
commit 17006e86a7641fa3c50324cfb602f0e74dac8527 upstream.
Fix the following build errors:
arch/sparc/mm/srmmu.c: In function ‘smp_flush_page_for_dma’: arch/sparc/mm/srmmu.c:1639:13: error: cast between incompatible function types from ‘void (*)(long unsigned int)’ to ‘void (*)(long unsigned int, long unsigned int, long unsigned int, long unsigned int, long unsigned int)’ [-Werror=cast-function-type] 1639 | xc1((smpfunc_t) local_ops->page_for_dma, page); | ^ arch/sparc/mm/srmmu.c: In function ‘smp_flush_cache_mm’: arch/sparc/mm/srmmu.c:1662:29: error: cast between incompatible function types from ‘void (*)(struct mm_struct *)’ to ‘void (*)(long unsigned int, long unsigned int, long unsigned int, long unsigned int, long unsigned int)’ [-Werror=cast-function-type] 1662 | xc1((smpfunc_t) local_ops->cache_mm, (unsigned long) mm); | [ ... ]
Compile-tested only.
Fixes: 552a23a0e5d0 ("Makefile: Enable -Wcast-function-type") Cc: stable@vger.kernel.org Signed-off-by: Bart Van Assche bvanassche@acm.org Tested-by: Andreas Larsson andreas@gaisler.com Signed-off-by: Kees Cook keescook@chromium.org Link: https://lore.kernel.org/r/20220830205854.1918026-1-bvanassche@acm.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/sparc/include/asm/smp_32.h | 15 ++++++--------- arch/sparc/kernel/leon_smp.c | 12 +++++++----- arch/sparc/kernel/sun4d_smp.c | 12 +++++++----- arch/sparc/kernel/sun4m_smp.c | 10 ++++++---- arch/sparc/mm/srmmu.c | 29 +++++++++++++---------------- 5 files changed, 39 insertions(+), 39 deletions(-)
--- a/arch/sparc/include/asm/smp_32.h +++ b/arch/sparc/include/asm/smp_32.h @@ -33,9 +33,6 @@ extern volatile unsigned long cpu_callin extern cpumask_t smp_commenced_mask; extern struct linux_prom_registers smp_penguin_ctable;
-typedef void (*smpfunc_t)(unsigned long, unsigned long, unsigned long, - unsigned long, unsigned long); - void cpu_panic(void);
/* @@ -57,7 +54,7 @@ void smp_bogo(struct seq_file *); void smp_info(struct seq_file *);
struct sparc32_ipi_ops { - void (*cross_call)(smpfunc_t func, cpumask_t mask, unsigned long arg1, + void (*cross_call)(void *func, cpumask_t mask, unsigned long arg1, unsigned long arg2, unsigned long arg3, unsigned long arg4); void (*resched)(int cpu); @@ -66,28 +63,28 @@ struct sparc32_ipi_ops { }; extern const struct sparc32_ipi_ops *sparc32_ipi_ops;
-static inline void xc0(smpfunc_t func) +static inline void xc0(void *func) { sparc32_ipi_ops->cross_call(func, *cpu_online_mask, 0, 0, 0, 0); }
-static inline void xc1(smpfunc_t func, unsigned long arg1) +static inline void xc1(void *func, unsigned long arg1) { sparc32_ipi_ops->cross_call(func, *cpu_online_mask, arg1, 0, 0, 0); } -static inline void xc2(smpfunc_t func, unsigned long arg1, unsigned long arg2) +static inline void xc2(void *func, unsigned long arg1, unsigned long arg2) { sparc32_ipi_ops->cross_call(func, *cpu_online_mask, arg1, arg2, 0, 0); }
-static inline void xc3(smpfunc_t func, unsigned long arg1, unsigned long arg2, +static inline void xc3(void *func, unsigned long arg1, unsigned long arg2, unsigned long arg3) { sparc32_ipi_ops->cross_call(func, *cpu_online_mask, arg1, arg2, arg3, 0); }
-static inline void xc4(smpfunc_t func, unsigned long arg1, unsigned long arg2, +static inline void xc4(void *func, unsigned long arg1, unsigned long arg2, unsigned long arg3, unsigned long arg4) { sparc32_ipi_ops->cross_call(func, *cpu_online_mask, --- a/arch/sparc/kernel/leon_smp.c +++ b/arch/sparc/kernel/leon_smp.c @@ -359,7 +359,7 @@ void leonsmp_ipi_interrupt(void) }
static struct smp_funcall { - smpfunc_t func; + void *func; unsigned long arg1; unsigned long arg2; unsigned long arg3; @@ -372,7 +372,7 @@ static struct smp_funcall { static DEFINE_SPINLOCK(cross_call_lock);
/* Cross calls must be serialized, at least currently. */ -static void leon_cross_call(smpfunc_t func, cpumask_t mask, unsigned long arg1, +static void leon_cross_call(void *func, cpumask_t mask, unsigned long arg1, unsigned long arg2, unsigned long arg3, unsigned long arg4) { @@ -384,7 +384,7 @@ static void leon_cross_call(smpfunc_t fu
{ /* If you make changes here, make sure gcc generates proper code... */ - register smpfunc_t f asm("i0") = func; + register void *f asm("i0") = func; register unsigned long a1 asm("i1") = arg1; register unsigned long a2 asm("i2") = arg2; register unsigned long a3 asm("i3") = arg3; @@ -444,11 +444,13 @@ static void leon_cross_call(smpfunc_t fu /* Running cross calls. */ void leon_cross_call_irq(void) { + void (*func)(unsigned long, unsigned long, unsigned long, unsigned long, + unsigned long) = ccall_info.func; int i = smp_processor_id();
ccall_info.processors_in[i] = 1; - ccall_info.func(ccall_info.arg1, ccall_info.arg2, ccall_info.arg3, - ccall_info.arg4, ccall_info.arg5); + func(ccall_info.arg1, ccall_info.arg2, ccall_info.arg3, ccall_info.arg4, + ccall_info.arg5); ccall_info.processors_out[i] = 1; }
--- a/arch/sparc/kernel/sun4d_smp.c +++ b/arch/sparc/kernel/sun4d_smp.c @@ -268,7 +268,7 @@ static void sun4d_ipi_resched(int cpu) }
static struct smp_funcall { - smpfunc_t func; + void *func; unsigned long arg1; unsigned long arg2; unsigned long arg3; @@ -281,7 +281,7 @@ static struct smp_funcall { static DEFINE_SPINLOCK(cross_call_lock);
/* Cross calls must be serialized, at least currently. */ -static void sun4d_cross_call(smpfunc_t func, cpumask_t mask, unsigned long arg1, +static void sun4d_cross_call(void *func, cpumask_t mask, unsigned long arg1, unsigned long arg2, unsigned long arg3, unsigned long arg4) { @@ -296,7 +296,7 @@ static void sun4d_cross_call(smpfunc_t f * If you make changes here, make sure * gcc generates proper code... */ - register smpfunc_t f asm("i0") = func; + register void *f asm("i0") = func; register unsigned long a1 asm("i1") = arg1; register unsigned long a2 asm("i2") = arg2; register unsigned long a3 asm("i3") = arg3; @@ -353,11 +353,13 @@ static void sun4d_cross_call(smpfunc_t f /* Running cross calls. */ void smp4d_cross_call_irq(void) { + void (*func)(unsigned long, unsigned long, unsigned long, unsigned long, + unsigned long) = ccall_info.func; int i = hard_smp_processor_id();
ccall_info.processors_in[i] = 1; - ccall_info.func(ccall_info.arg1, ccall_info.arg2, ccall_info.arg3, - ccall_info.arg4, ccall_info.arg5); + func(ccall_info.arg1, ccall_info.arg2, ccall_info.arg3, ccall_info.arg4, + ccall_info.arg5); ccall_info.processors_out[i] = 1; }
--- a/arch/sparc/kernel/sun4m_smp.c +++ b/arch/sparc/kernel/sun4m_smp.c @@ -157,7 +157,7 @@ static void sun4m_ipi_mask_one(int cpu) }
static struct smp_funcall { - smpfunc_t func; + void *func; unsigned long arg1; unsigned long arg2; unsigned long arg3; @@ -170,7 +170,7 @@ static struct smp_funcall { static DEFINE_SPINLOCK(cross_call_lock);
/* Cross calls must be serialized, at least currently. */ -static void sun4m_cross_call(smpfunc_t func, cpumask_t mask, unsigned long arg1, +static void sun4m_cross_call(void *func, cpumask_t mask, unsigned long arg1, unsigned long arg2, unsigned long arg3, unsigned long arg4) { @@ -230,11 +230,13 @@ static void sun4m_cross_call(smpfunc_t f /* Running cross calls. */ void smp4m_cross_call_irq(void) { + void (*func)(unsigned long, unsigned long, unsigned long, unsigned long, + unsigned long) = ccall_info.func; int i = smp_processor_id();
ccall_info.processors_in[i] = 1; - ccall_info.func(ccall_info.arg1, ccall_info.arg2, ccall_info.arg3, - ccall_info.arg4, ccall_info.arg5); + func(ccall_info.arg1, ccall_info.arg2, ccall_info.arg3, ccall_info.arg4, + ccall_info.arg5); ccall_info.processors_out[i] = 1; }
--- a/arch/sparc/mm/srmmu.c +++ b/arch/sparc/mm/srmmu.c @@ -1636,19 +1636,19 @@ static void __init get_srmmu_type(void) /* Local cross-calls. */ static void smp_flush_page_for_dma(unsigned long page) { - xc1((smpfunc_t) local_ops->page_for_dma, page); + xc1(local_ops->page_for_dma, page); local_ops->page_for_dma(page); }
static void smp_flush_cache_all(void) { - xc0((smpfunc_t) local_ops->cache_all); + xc0(local_ops->cache_all); local_ops->cache_all(); }
static void smp_flush_tlb_all(void) { - xc0((smpfunc_t) local_ops->tlb_all); + xc0(local_ops->tlb_all); local_ops->tlb_all(); }
@@ -1659,7 +1659,7 @@ static void smp_flush_cache_mm(struct mm cpumask_copy(&cpu_mask, mm_cpumask(mm)); cpumask_clear_cpu(smp_processor_id(), &cpu_mask); if (!cpumask_empty(&cpu_mask)) - xc1((smpfunc_t) local_ops->cache_mm, (unsigned long) mm); + xc1(local_ops->cache_mm, (unsigned long)mm); local_ops->cache_mm(mm); } } @@ -1671,7 +1671,7 @@ static void smp_flush_tlb_mm(struct mm_s cpumask_copy(&cpu_mask, mm_cpumask(mm)); cpumask_clear_cpu(smp_processor_id(), &cpu_mask); if (!cpumask_empty(&cpu_mask)) { - xc1((smpfunc_t) local_ops->tlb_mm, (unsigned long) mm); + xc1(local_ops->tlb_mm, (unsigned long)mm); if (atomic_read(&mm->mm_users) == 1 && current->active_mm == mm) cpumask_copy(mm_cpumask(mm), cpumask_of(smp_processor_id())); @@ -1691,8 +1691,8 @@ static void smp_flush_cache_range(struct cpumask_copy(&cpu_mask, mm_cpumask(mm)); cpumask_clear_cpu(smp_processor_id(), &cpu_mask); if (!cpumask_empty(&cpu_mask)) - xc3((smpfunc_t) local_ops->cache_range, - (unsigned long) vma, start, end); + xc3(local_ops->cache_range, (unsigned long)vma, start, + end); local_ops->cache_range(vma, start, end); } } @@ -1708,8 +1708,8 @@ static void smp_flush_tlb_range(struct v cpumask_copy(&cpu_mask, mm_cpumask(mm)); cpumask_clear_cpu(smp_processor_id(), &cpu_mask); if (!cpumask_empty(&cpu_mask)) - xc3((smpfunc_t) local_ops->tlb_range, - (unsigned long) vma, start, end); + xc3(local_ops->tlb_range, (unsigned long)vma, start, + end); local_ops->tlb_range(vma, start, end); } } @@ -1723,8 +1723,7 @@ static void smp_flush_cache_page(struct cpumask_copy(&cpu_mask, mm_cpumask(mm)); cpumask_clear_cpu(smp_processor_id(), &cpu_mask); if (!cpumask_empty(&cpu_mask)) - xc2((smpfunc_t) local_ops->cache_page, - (unsigned long) vma, page); + xc2(local_ops->cache_page, (unsigned long)vma, page); local_ops->cache_page(vma, page); } } @@ -1738,8 +1737,7 @@ static void smp_flush_tlb_page(struct vm cpumask_copy(&cpu_mask, mm_cpumask(mm)); cpumask_clear_cpu(smp_processor_id(), &cpu_mask); if (!cpumask_empty(&cpu_mask)) - xc2((smpfunc_t) local_ops->tlb_page, - (unsigned long) vma, page); + xc2(local_ops->tlb_page, (unsigned long)vma, page); local_ops->tlb_page(vma, page); } } @@ -1753,7 +1751,7 @@ static void smp_flush_page_to_ram(unsign * XXX This experiment failed, research further... -DaveM */ #if 1 - xc1((smpfunc_t) local_ops->page_to_ram, page); + xc1(local_ops->page_to_ram, page); #endif local_ops->page_to_ram(page); } @@ -1764,8 +1762,7 @@ static void smp_flush_sig_insns(struct m cpumask_copy(&cpu_mask, mm_cpumask(mm)); cpumask_clear_cpu(smp_processor_id(), &cpu_mask); if (!cpumask_empty(&cpu_mask)) - xc2((smpfunc_t) local_ops->sig_insns, - (unsigned long) mm, insn_addr); + xc2(local_ops->sig_insns, (unsigned long)mm, insn_addr); local_ops->sig_insns(mm, insn_addr); }