diff mbox series

[v2,4/9] hw/block/nand: Rename PAGE_SIZE to NAND_PAGE_SIZE

Message ID 20210118063808.12471-5-jiaxun.yang@flygoat.com (mailing list archive)
State New, archived
Headers show
Series Alpine Linux build fix and CI pipeline | expand

Commit Message

Jiaxun Yang Jan. 18, 2021, 6:38 a.m. UTC 
As per POSIX specification of limits.h [1], OS libc may define
PAGE_SIZE in limits.h.

To prevent collosion of definition, we rename PAGE_SIZE here.

[1]: https://pubs.opengroup.org/onlinepubs/7908799/xsh/limits.h.html

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
---
 hw/block/nand.c | 40 ++++++++++++++++++++--------------------
 1 file changed, 20 insertions(+), 20 deletions(-)

Comments

Philippe Mathieu-Daudé Jan. 18, 2021, 9:44 a.m. UTC | #1 
On 1/18/21 7:38 AM, Jiaxun Yang wrote:
> As per POSIX specification of limits.h [1], OS libc may define
> PAGE_SIZE in limits.h.
> 
> To prevent collosion of definition, we rename PAGE_SIZE here.
> 
> [1]: https://pubs.opengroup.org/onlinepubs/7908799/xsh/limits.h.html
> 
> Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
> Reviewed-by: Thomas Huth <thuth@redhat.com>
> ---
>  hw/block/nand.c | 40 ++++++++++++++++++++--------------------
>  1 file changed, 20 insertions(+), 20 deletions(-)
...

> -# define PAGE_SIZE		256
> +# define NAND_PAGE_SIZE     256
>  # define PAGE_SHIFT		8
>  # define PAGE_SECTORS		1
>  # define ADDR_SHIFT		8
>  # include "nand.c"

Why not rename all SIZE/SHIFT/SECTORS at once, to avoid
having half NAND and half generic names?
diff mbox series

Patch

diff --git a/hw/block/nand.c b/hw/block/nand.c
index 123020aebf..cd26a14d57 100644
--- a/hw/block/nand.c
+++ b/hw/block/nand.c
@@ -115,24 +115,24 @@  static void mem_and(uint8_t *dest, const uint8_t *src, size_t n)
 # define NAND_IO
 
 # define PAGE(addr)		((addr) >> ADDR_SHIFT)
-# define PAGE_START(page)	(PAGE(page) * (PAGE_SIZE + OOB_SIZE))
+# define PAGE_START(page)	(PAGE(page) * (NAND_PAGE_SIZE + OOB_SIZE))
 # define PAGE_MASK		((1 << ADDR_SHIFT) - 1)
 # define OOB_SHIFT		(PAGE_SHIFT - 5)
 # define OOB_SIZE		(1 << OOB_SHIFT)
 # define SECTOR(addr)		((addr) >> (9 + ADDR_SHIFT - PAGE_SHIFT))
 # define SECTOR_OFFSET(addr)	((addr) & ((511 >> PAGE_SHIFT) << 8))
 
-# define PAGE_SIZE		256
+# define NAND_PAGE_SIZE     256
 # define PAGE_SHIFT		8
 # define PAGE_SECTORS		1
 # define ADDR_SHIFT		8
 # include "nand.c"
-# define PAGE_SIZE		512
+# define NAND_PAGE_SIZE     512
 # define PAGE_SHIFT		9
 # define PAGE_SECTORS		1
 # define ADDR_SHIFT		8
 # include "nand.c"
-# define PAGE_SIZE		2048
+# define NAND_PAGE_SIZE		2048
 # define PAGE_SHIFT		11
 # define PAGE_SECTORS		4
 # define ADDR_SHIFT		16
@@ -652,7 +652,7 @@  type_init(nand_register_types)
 #else
 
 /* Program a single page */
-static void glue(nand_blk_write_, PAGE_SIZE)(NANDFlashState *s)
+static void glue(nand_blk_write_, NAND_PAGE_SIZE)(NANDFlashState *s)
 {
     uint64_t off, page, sector, soff;
     uint8_t iobuf[(PAGE_SECTORS + 2) * 0x200];
@@ -672,11 +672,11 @@  static void glue(nand_blk_write_, PAGE_SIZE)(NANDFlashState *s)
             return;
         }
 
-        mem_and(iobuf + (soff | off), s->io, MIN(s->iolen, PAGE_SIZE - off));
-        if (off + s->iolen > PAGE_SIZE) {
+        mem_and(iobuf + (soff | off), s->io, MIN(s->iolen, NAND_PAGE_SIZE - off));
+        if (off + s->iolen > NAND_PAGE_SIZE) {
             page = PAGE(s->addr);
-            mem_and(s->storage + (page << OOB_SHIFT), s->io + PAGE_SIZE - off,
-                            MIN(OOB_SIZE, off + s->iolen - PAGE_SIZE));
+            mem_and(s->storage + (page << OOB_SHIFT), s->io + NAND_PAGE_SIZE - off,
+                            MIN(OOB_SIZE, off + s->iolen - NAND_PAGE_SIZE));
         }
 
         if (blk_pwrite(s->blk, sector << BDRV_SECTOR_BITS, iobuf,
@@ -704,7 +704,7 @@  static void glue(nand_blk_write_, PAGE_SIZE)(NANDFlashState *s)
 }
 
 /* Erase a single block */
-static void glue(nand_blk_erase_, PAGE_SIZE)(NANDFlashState *s)
+static void glue(nand_blk_erase_, NAND_PAGE_SIZE)(NANDFlashState *s)
 {
     uint64_t i, page, addr;
     uint8_t iobuf[0x200] = { [0 ... 0x1ff] = 0xff, };
@@ -716,7 +716,7 @@  static void glue(nand_blk_erase_, PAGE_SIZE)(NANDFlashState *s)
 
     if (!s->blk) {
         memset(s->storage + PAGE_START(addr),
-                        0xff, (PAGE_SIZE + OOB_SIZE) << s->erase_shift);
+                        0xff, (NAND_PAGE_SIZE + OOB_SIZE) << s->erase_shift);
     } else if (s->mem_oob) {
         memset(s->storage + (PAGE(addr) << OOB_SHIFT),
                         0xff, OOB_SIZE << s->erase_shift);
@@ -742,7 +742,7 @@  static void glue(nand_blk_erase_, PAGE_SIZE)(NANDFlashState *s)
 
         memset(iobuf, 0xff, 0x200);
         i = (addr & ~0x1ff) + 0x200;
-        for (addr += ((PAGE_SIZE + OOB_SIZE) << s->erase_shift) - 0x200;
+        for (addr += ((NAND_PAGE_SIZE + OOB_SIZE) << s->erase_shift) - 0x200;
                         i < addr; i += 0x200) {
             if (blk_pwrite(s->blk, i, iobuf, BDRV_SECTOR_SIZE, 0) < 0) {
                 printf("%s: write error in sector %" PRIu64 "\n",
@@ -763,7 +763,7 @@  static void glue(nand_blk_erase_, PAGE_SIZE)(NANDFlashState *s)
     }
 }
 
-static void glue(nand_blk_load_, PAGE_SIZE)(NANDFlashState *s,
+static void glue(nand_blk_load_, NAND_PAGE_SIZE)(NANDFlashState *s,
                 uint64_t addr, int offset)
 {
     if (PAGE(addr) >= s->pages) {
@@ -777,7 +777,7 @@  static void glue(nand_blk_load_, PAGE_SIZE)(NANDFlashState *s,
                 printf("%s: read error in sector %" PRIu64 "\n",
                                 __func__, SECTOR(addr));
             }
-            memcpy(s->io + SECTOR_OFFSET(s->addr) + PAGE_SIZE,
+            memcpy(s->io + SECTOR_OFFSET(s->addr) + NAND_PAGE_SIZE,
                             s->storage + (PAGE(s->addr) << OOB_SHIFT),
                             OOB_SIZE);
             s->ioaddr = s->io + SECTOR_OFFSET(s->addr) + offset;
@@ -791,23 +791,23 @@  static void glue(nand_blk_load_, PAGE_SIZE)(NANDFlashState *s,
         }
     } else {
         memcpy(s->io, s->storage + PAGE_START(s->addr) +
-                        offset, PAGE_SIZE + OOB_SIZE - offset);
+                        offset, NAND_PAGE_SIZE + OOB_SIZE - offset);
         s->ioaddr = s->io;
     }
 }
 
-static void glue(nand_init_, PAGE_SIZE)(NANDFlashState *s)
+static void glue(nand_init_, NAND_PAGE_SIZE)(NANDFlashState *s)
 {
     s->oob_shift = PAGE_SHIFT - 5;
     s->pages = s->size >> PAGE_SHIFT;
     s->addr_shift = ADDR_SHIFT;
 
-    s->blk_erase = glue(nand_blk_erase_, PAGE_SIZE);
-    s->blk_write = glue(nand_blk_write_, PAGE_SIZE);
-    s->blk_load = glue(nand_blk_load_, PAGE_SIZE);
+    s->blk_erase = glue(nand_blk_erase_, NAND_PAGE_SIZE);
+    s->blk_write = glue(nand_blk_write_, NAND_PAGE_SIZE);
+    s->blk_load = glue(nand_blk_load_, NAND_PAGE_SIZE);
 }
 
-# undef PAGE_SIZE
+# undef NAND_PAGE_SIZE
 # undef PAGE_SHIFT
 # undef PAGE_SECTORS
 # undef ADDR_SHIFT