Merge remote-tracking branch 'remotes/elmarco/tags/tidy-pull-request' into staging

# gpg: Signature made Thu 31 Aug 2017 11:29:33 BST
# gpg:                using RSA key 0xDAE8E10975969CE5
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>"
# gpg:                 aka "Marc-André Lureau <marcandre.lureau@gmail.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 87A9 BD93 3F87 C606 D276  F62D DAE8 E109 7596 9CE5

* remotes/elmarco/tags/tidy-pull-request: (29 commits)
  eepro100: replace g_malloc()+memcpy() with g_memdup()
  test-iov: replace g_malloc()+memcpy() with g_memdup()
  i386: replace g_malloc()+memcpy() with g_memdup()
  i386: introduce ELF_NOTE_SIZE macro
  decnumber: use DIV_ROUND_UP
  kvm: use DIV_ROUND_UP
  i386/dump: use DIV_ROUND_UP
  ppc: use DIV_ROUND_UP
  msix: use DIV_ROUND_UP
  usb-hub: use DIV_ROUND_UP
  q35: use DIV_ROUND_UP
  piix: use DIV_ROUND_UP
  virtio-serial: use DIV_ROUND_UP
  console: use DIV_ROUND_UP
  monitor: use DIV_ROUND_UP
  virtio-gpu: use DIV_ROUND_UP
  vga: use DIV_ROUND_UP
  ui: use DIV_ROUND_UP
  vnc: use DIV_ROUND_UP
  vvfat: use DIV_ROUND_UP
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

3 files changed, 22 insertions, 22 deletions

diff --git a/target/i386/arch_dump.c b/target/i386/arch_dump.c
index fe0aa36932..e682904052 100644
--- a/target/i386/arch_dump.c
+++ b/target/i386/arch_dump.c
@@ -18,6 +18,11 @@
 #include "elf.h"
 #include "sysemu/memory_mapping.h"
 
+#define ELF_NOTE_SIZE(hdr_size, name_size, desc_size)   \
+    ((DIV_ROUND_UP((hdr_size), 4)                       \
+      + DIV_ROUND_UP((name_size), 4)                    \
+      + DIV_ROUND_UP((desc_size), 4)) * 4)
+
 #ifdef TARGET_X86_64
 typedef struct {
     target_ulong r15, r14, r13, r12, rbp, rbx, r11, r10;
@@ -77,16 +82,15 @@ static int x86_64_write_elf64_note(WriteCoreDumpFunction f,
     regs.gs = env->segs[R_GS].selector;
 
     descsz = sizeof(x86_64_elf_prstatus);
-    note_size = ((sizeof(Elf64_Nhdr) + 3) / 4 + (name_size + 3) / 4 +
-                (descsz + 3) / 4) * 4;
+    note_size = ELF_NOTE_SIZE(sizeof(Elf64_Nhdr), name_size, descsz);
     note = g_malloc0(note_size);
     note->n_namesz = cpu_to_le32(name_size);
     note->n_descsz = cpu_to_le32(descsz);
     note->n_type = cpu_to_le32(NT_PRSTATUS);
     buf = (char *)note;
-    buf += ((sizeof(Elf64_Nhdr) + 3) / 4) * 4;
+    buf += ROUND_UP(sizeof(Elf64_Nhdr), 4);
     memcpy(buf, name, name_size);
-    buf += ((name_size + 3) / 4) * 4;
+    buf += ROUND_UP(name_size, 4);
     memcpy(buf + 32, &id, 4); /* pr_pid */
     buf += descsz - sizeof(x86_64_user_regs_struct)-sizeof(target_ulong);
     memcpy(buf, &regs, sizeof(x86_64_user_regs_struct));
@@ -156,16 +160,15 @@ static int x86_write_elf64_note(WriteCoreDumpFunction f, CPUX86State *env,
 
     x86_fill_elf_prstatus(&prstatus, env, id);
     descsz = sizeof(x86_elf_prstatus);
-    note_size = ((sizeof(Elf64_Nhdr) + 3) / 4 + (name_size + 3) / 4 +
-                (descsz + 3) / 4) * 4;
+    note_size = ELF_NOTE_SIZE(sizeof(Elf64_Nhdr), name_size, descsz);
     note = g_malloc0(note_size);
     note->n_namesz = cpu_to_le32(name_size);
     note->n_descsz = cpu_to_le32(descsz);
     note->n_type = cpu_to_le32(NT_PRSTATUS);
     buf = (char *)note;
-    buf += ((sizeof(Elf64_Nhdr) + 3) / 4) * 4;
+    buf += ROUND_UP(sizeof(Elf64_Nhdr), 4);
     memcpy(buf, name, name_size);
-    buf += ((name_size + 3) / 4) * 4;
+    buf += ROUND_UP(name_size, 4);
     memcpy(buf, &prstatus, sizeof(prstatus));
 
     ret = f(note, note_size, opaque);
@@ -211,16 +214,15 @@ int x86_cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cs,
 
     x86_fill_elf_prstatus(&prstatus, &cpu->env, cpuid);
     descsz = sizeof(x86_elf_prstatus);
-    note_size = ((sizeof(Elf32_Nhdr) + 3) / 4 + (name_size + 3) / 4 +
-                (descsz + 3) / 4) * 4;
+    note_size = ELF_NOTE_SIZE(sizeof(Elf32_Nhdr), name_size, descsz);
     note = g_malloc0(note_size);
     note->n_namesz = cpu_to_le32(name_size);
     note->n_descsz = cpu_to_le32(descsz);
     note->n_type = cpu_to_le32(NT_PRSTATUS);
     buf = (char *)note;
-    buf += ((sizeof(Elf32_Nhdr) + 3) / 4) * 4;
+    buf += ROUND_UP(sizeof(Elf32_Nhdr), 4);
     memcpy(buf, name, name_size);
-    buf += ((name_size + 3) / 4) * 4;
+    buf += ROUND_UP(name_size, 4);
     memcpy(buf, &prstatus, sizeof(prstatus));
 
     ret = f(note, note_size, opaque);
@@ -338,8 +340,8 @@ static inline int cpu_write_qemu_note(WriteCoreDumpFunction f,
     } else {
         note_head_size = sizeof(Elf64_Nhdr);
     }
-    note_size = ((note_head_size + 3) / 4 + (name_size + 3) / 4 +
-                (descsz + 3) / 4) * 4;
+    note_size = (DIV_ROUND_UP(note_head_size, 4) + DIV_ROUND_UP(name_size, 4) +
+                DIV_ROUND_UP(descsz, 4)) * 4;
     note = g_malloc0(note_size);
     if (type == 0) {
         note32 = note;
@@ -353,9 +355,9 @@ static inline int cpu_write_qemu_note(WriteCoreDumpFunction f,
         note64->n_type = 0;
     }
     buf = note;
-    buf += ((note_head_size + 3) / 4) * 4;
+    buf += ROUND_UP(note_head_size, 4);
     memcpy(buf, name, name_size);
-    buf += ((name_size + 3) / 4) * 4;
+    buf += ROUND_UP(name_size, 4);
     memcpy(buf, &state, sizeof(state));
 
     ret = f(note, note_size, opaque);
@@ -443,10 +445,8 @@ ssize_t cpu_get_note_size(int class, int machine, int nr_cpus)
 #endif
     qemu_desc_size = sizeof(QEMUCPUState);
 
-    elf_note_size = ((note_head_size + 3) / 4 + (name_size + 3) / 4 +
-                     (elf_desc_size + 3) / 4) * 4;
-    qemu_note_size = ((note_head_size + 3) / 4 + (name_size + 3) / 4 +
-                      (qemu_desc_size + 3) / 4) * 4;
+    elf_note_size = ELF_NOTE_SIZE(note_head_size, name_size, elf_desc_size);
+    qemu_note_size = ELF_NOTE_SIZE(note_head_size, name_size, qemu_desc_size);
 
     return (elf_note_size + qemu_note_size) * nr_cpus;
 }
diff --git a/target/ppc/mem_helper.c b/target/ppc/mem_helper.c
index e6383c6bfa..a34e604db3 100644
--- a/target/ppc/mem_helper.c
+++ b/target/ppc/mem_helper.c
@@ -111,7 +111,7 @@ void helper_lswx(CPUPPCState *env, target_ulong addr, uint32_t reg,
                  uint32_t ra, uint32_t rb)
 {
     if (likely(xer_bc != 0)) {
-        int num_used_regs = (xer_bc + 3) / 4;
+        int num_used_regs = DIV_ROUND_UP(xer_bc, 4);
         if (unlikely((ra != 0 && lsw_reg_in_range(reg, num_used_regs, ra)) ||
                      lsw_reg_in_range(reg, num_used_regs, rb))) {
             raise_exception_err_ra(env, POWERPC_EXCP_PROGRAM,
diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index 01233e8b6d..606b605ba0 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -2880,7 +2880,7 @@ static void gen_lswi(DisasContext *ctx)
     }
     if (nb == 0)
         nb = 32;
-    nr = (nb + 3) / 4;
+    nr = DIV_ROUND_UP(nb, 4);
     if (unlikely(lsw_reg_in_range(start, nr, ra))) {
         gen_inval_exception(ctx, POWERPC_EXCP_INVAL_LSWX);
         return;