xiaoxiang781216 commented on code in PR #20820:
URL: https://github.com/apache/nuttx/pull/20820#discussion_r4355234052


##########
syscall/syscall.csv:
##########
@@ -129,7 +129,7 @@
 
"pthread_sigmask","pthread.h","!defined(CONFIG_DISABLE_PTHREAD)","int","int","FAR
 const sigset_t *","FAR sigset_t *"
 "pwrite","unistd.h","","ssize_t","int","FAR const void *","size_t","off_t"
 "read","unistd.h","","ssize_t","int","FAR void *","size_t"
-"readv","sys/uio.h","","ssize_t","int","FAR const struct iovec *","int"
+"readv","sys/uio.h","defined(CONFIG_FS_VECTORED_IO)","ssize_t","int","FAR 
const struct iovec *","int"

Review Comment:
   let's keep readv/writev since:
   
   1. could be implemented by read/write callback
   2. link can remove readv/writev if nobody call them



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