yf13 commented on code in PR #12041:
URL: https://github.com/apache/nuttx/pull/12041#discussion_r1569790992


##########
include/nuttx/addrenv.h:
##########
@@ -193,7 +193,9 @@
 #  define ARCH_SHM_MAXPAGES   (CONFIG_ARCH_SHM_NPAGES * 
CONFIG_ARCH_SHM_MAXREGIONS)
 #  define ARCH_SHM_REGIONSIZE (CONFIG_ARCH_SHM_NPAGES * CONFIG_MM_PGSIZE)
 #  define ARCH_SHM_SIZE       (CONFIG_ARCH_SHM_MAXREGIONS * 
ARCH_SHM_REGIONSIZE)

Review Comment:
   By adding one UDEV_NPAGES option, we can keep most SHM_xxx unchanged, and 
`device mapping` and `SHM` can be two indenpendent choices, this sounds more 
flexible. There is no other `UDEV_xxx` stuffs needed.



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