Commit 7afa81c5 authored by Nathan Chancellor's avatar Nathan Chancellor Committed by David S. Miller

isdn: avm: Fix string plus integer warning from Clang

A recent commit in Clang expanded the -Wstring-plus-int warning, showing
some odd behavior in this file.

drivers/isdn/hardware/avm/b1.c:426:30: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                cinfo->version[j] = "\0\0" + 1;
                                    ~~~~~~~^~~
drivers/isdn/hardware/avm/b1.c:426:30: note: use array indexing to silence this warning
                cinfo->version[j] = "\0\0" + 1;
                                           ^
                                    &      [  ]
1 warning generated.

This is equivalent to just "\0". Nick pointed out that it is smarter to
use "" instead of "\0" because "" is used elsewhere in the kernel and
can be deduplicated at the linking stage.

Link: https://github.com/ClangBuiltLinux/linux/issues/309Suggested-by: default avatarNick Desaulniers <ndesaulniers@google.com>
Signed-off-by: default avatarNathan Chancellor <natechancellor@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8a7fa0c3
...@@ -423,7 +423,7 @@ void b1_parse_version(avmctrl_info *cinfo) ...@@ -423,7 +423,7 @@ void b1_parse_version(avmctrl_info *cinfo)
int i, j; int i, j;
for (j = 0; j < AVM_MAXVERSION; j++) for (j = 0; j < AVM_MAXVERSION; j++)
cinfo->version[j] = "\0\0" + 1; cinfo->version[j] = "";
for (i = 0, j = 0; for (i = 0, j = 0;
j < AVM_MAXVERSION && i < cinfo->versionlen; j < AVM_MAXVERSION && i < cinfo->versionlen;
j++, i += cinfo->versionbuf[i] + 1) j++, i += cinfo->versionbuf[i] + 1)
......
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