SELinux: suppress a warning for 64k pages.

On PowerPC allmodconfig build we get this:

security/selinux/xfrm.c:214: warning: comparison is always false due to limited range of data type

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: James Morris <jmorris@namei.org>

diff --git a/security/selinux/xfrm.c b/security/selinux/xfrm.c
index 36a191e7004e957fb38de4e9c5507f8941a33062..e076039690330675f6679edd39b18f02ab8e852d 100644 (file)
--- a/security/selinux/xfrm.c
+++ b/security/selinux/xfrm.c
@@ -211,26 +211,27 @@ static int selinux_xfrm_sec_ctx_alloc(struct xfrm_sec_ctx **ctxp,
        if (uctx->ctx_doi != XFRM_SC_ALG_SELINUX)
                return -EINVAL;
 
-       if (uctx->ctx_len >= PAGE_SIZE)
+       str_len = uctx->ctx_len;
+       if (str_len >= PAGE_SIZE)
                return -ENOMEM;
 
        *ctxp = ctx = kmalloc(sizeof(*ctx) +
-                             uctx->ctx_len + 1,
+                             str_len + 1,
                              GFP_KERNEL);
 
        if (!ctx)
                return -ENOMEM;
 
        ctx->ctx_doi = uctx->ctx_doi;
-       ctx->ctx_len = uctx->ctx_len;
+       ctx->ctx_len = str_len;
        ctx->ctx_alg = uctx->ctx_alg;
 
        memcpy(ctx->ctx_str,
               uctx+1,
-              ctx->ctx_len);
-       ctx->ctx_str[ctx->ctx_len] = 0;
+              str_len);
+       ctx->ctx_str[str_len] = 0;
        rc = security_context_to_sid(ctx->ctx_str,
-                                    ctx->ctx_len,
+                                    str_len,
                                     &ctx->ctx_sid);
 
        if (rc)