diff mbox series

[XEN,for-4.19,v4,1/8] xen: modify or add declarations for variables where needed

Message ID 1da22c0b7c32f62f200383af8607caaf1a02ba0d.1698053876.git.nicola.vetrini@bugseng.com (mailing list archive)
State Superseded
Headers show
Series Fix or deviate various instances of missing declarations | expand

Commit Message

Nicola Vetrini Oct. 23, 2023, 9:56 a.m. UTC
Some variables with external linkage used in C code do not have
a visible declaration where they are defined. Other variables
can become static, thereby eliminating the need for a declaration.
Doing so also resolves violations of MISRA C:2012 Rule 8.4.

Fix typo s/mcinfo_dumpped/mcinfo_dumped/ while making
the variable static.

Signed-off-by: Nicola Vetrini <nicola.vetrini@bugseng.com>
---
Changes in v2:
- make xenpf_lock static on ARM
Changes in v3:
- moved back code from symbols.h to symbols.c
- dropped two declarations, now deviated
Changes in v4:
- revise commit message
---
 xen/arch/arm/include/asm/setup.h  | 3 +++
 xen/arch/arm/include/asm/smp.h    | 3 +++
 xen/arch/arm/platform_hypercall.c | 2 +-
 xen/arch/x86/cpu/mcheck/mce.c     | 7 ++++---
 xen/arch/x86/irq.c                | 2 +-
 xen/include/xen/symbols.h         | 1 +
 6 files changed, 13 insertions(+), 5 deletions(-)

--
2.34.1

Comments

Stefano Stabellini Oct. 23, 2023, 11:03 p.m. UTC | #1
On Mon, 23 Oct 2023, Nicola Vetrini wrote:
> Some variables with external linkage used in C code do not have
> a visible declaration where they are defined. Other variables
> can become static, thereby eliminating the need for a declaration.
> Doing so also resolves violations of MISRA C:2012 Rule 8.4.
> 
> Fix typo s/mcinfo_dumpped/mcinfo_dumped/ while making
> the variable static.
> 
> Signed-off-by: Nicola Vetrini <nicola.vetrini@bugseng.com>

Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Jan Beulich Oct. 24, 2023, 6:18 a.m. UTC | #2
On 24.10.2023 01:03, Stefano Stabellini wrote:
> On Mon, 23 Oct 2023, Nicola Vetrini wrote:
>> Some variables with external linkage used in C code do not have
>> a visible declaration where they are defined. Other variables
>> can become static, thereby eliminating the need for a declaration.
>> Doing so also resolves violations of MISRA C:2012 Rule 8.4.
>>
>> Fix typo s/mcinfo_dumpped/mcinfo_dumped/ while making
>> the variable static.
>>
>> Signed-off-by: Nicola Vetrini <nicola.vetrini@bugseng.com>
> 
> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>

(for x86)
Acked-by: Jan Beulich <jbeulich@suse.com>
diff mbox series

Patch

diff --git a/xen/arch/arm/include/asm/setup.h b/xen/arch/arm/include/asm/setup.h
index 98af6f55f5a0..2a2d6114f2eb 100644
--- a/xen/arch/arm/include/asm/setup.h
+++ b/xen/arch/arm/include/asm/setup.h
@@ -184,9 +184,12 @@  int map_range_to_domain(const struct dt_device_node *dev,
 extern lpae_t boot_pgtable[XEN_PT_LPAE_ENTRIES];

 #ifdef CONFIG_ARM_64
+extern lpae_t boot_first[XEN_PT_LPAE_ENTRIES];
 extern lpae_t boot_first_id[XEN_PT_LPAE_ENTRIES];
 #endif
+extern lpae_t boot_second[XEN_PT_LPAE_ENTRIES];
 extern lpae_t boot_second_id[XEN_PT_LPAE_ENTRIES];
+extern lpae_t boot_third[XEN_PT_LPAE_ENTRIES * XEN_NR_ENTRIES(2)];
 extern lpae_t boot_third_id[XEN_PT_LPAE_ENTRIES];

 /* Find where Xen will be residing at runtime and return a PT entry */
diff --git a/xen/arch/arm/include/asm/smp.h b/xen/arch/arm/include/asm/smp.h
index 4fabdf5310d8..28bf24a01d95 100644
--- a/xen/arch/arm/include/asm/smp.h
+++ b/xen/arch/arm/include/asm/smp.h
@@ -6,6 +6,9 @@ 
 #include <asm/current.h>
 #endif

+extern struct init_info init_data;
+extern unsigned long smp_up_cpu;
+
 DECLARE_PER_CPU(cpumask_var_t, cpu_sibling_mask);
 DECLARE_PER_CPU(cpumask_var_t, cpu_core_mask);

diff --git a/xen/arch/arm/platform_hypercall.c b/xen/arch/arm/platform_hypercall.c
index 743687a30390..fde4bc3e5809 100644
--- a/xen/arch/arm/platform_hypercall.c
+++ b/xen/arch/arm/platform_hypercall.c
@@ -17,7 +17,7 @@ 
 #include <asm/current.h>
 #include <asm/event.h>

-DEFINE_SPINLOCK(xenpf_lock);
+static DEFINE_SPINLOCK(xenpf_lock);

 long do_platform_op(XEN_GUEST_HANDLE_PARAM(xen_platform_op_t) u_xenpf_op)
 {
diff --git a/xen/arch/x86/cpu/mcheck/mce.c b/xen/arch/x86/cpu/mcheck/mce.c
index 6141b7eb9cf1..779a458cd88f 100644
--- a/xen/arch/x86/cpu/mcheck/mce.c
+++ b/xen/arch/x86/cpu/mcheck/mce.c
@@ -1682,13 +1682,14 @@  long do_mca(XEN_GUEST_HANDLE_PARAM(xen_mc_t) u_xen_mc)
     return ret;
 }

-int mcinfo_dumpped;
+static int mcinfo_dumped;
+
 static int cf_check x86_mcinfo_dump_panic(mctelem_cookie_t mctc)
 {
     struct mc_info *mcip = mctelem_dataptr(mctc);

     x86_mcinfo_dump(mcip);
-    mcinfo_dumpped++;
+    mcinfo_dumped++;

     return 0;
 }
@@ -1702,7 +1703,7 @@  static void mc_panic_dump(void)
     for_each_online_cpu(cpu)
         mctelem_process_deferred(cpu, x86_mcinfo_dump_panic,
                                  mctelem_has_deferred_lmce(cpu));
-    dprintk(XENLOG_ERR, "End dump mc_info, %x mcinfo dumped\n", mcinfo_dumpped);
+    dprintk(XENLOG_ERR, "End dump mc_info, %x mcinfo dumped\n", mcinfo_dumped);
 }

 void mc_panic(const char *s)
diff --git a/xen/arch/x86/irq.c b/xen/arch/x86/irq.c
index 6abfd8162120..604dba94b052 100644
--- a/xen/arch/x86/irq.c
+++ b/xen/arch/x86/irq.c
@@ -43,7 +43,7 @@  int __read_mostly opt_irq_vector_map = OPT_IRQ_VECTOR_MAP_DEFAULT;
 static unsigned char __read_mostly irq_max_guests;
 integer_param("irq-max-guests", irq_max_guests);

-vmask_t global_used_vector_map;
+static vmask_t global_used_vector_map;

 struct irq_desc __read_mostly *irq_desc = NULL;

diff --git a/xen/include/xen/symbols.h b/xen/include/xen/symbols.h
index 20bbb28ef226..1b2863663aa0 100644
--- a/xen/include/xen/symbols.h
+++ b/xen/include/xen/symbols.h
@@ -33,4 +33,5 @@  struct symbol_offset {
     uint32_t stream; /* .. in the compressed stream.*/
     uint32_t addr;   /* .. and in the fixed size address array. */
 };
+
 #endif /*_XEN_SYMBOLS_H*/