git: 4be4063cef67 - stable/13 - linux(4): Retire unneeded initialization

The branch stable/13 has been updated by dchagin:

URL: https://cgit.FreeBSD.org/src/commit/?id=4be4063cef676b014733ec881bc7db6d3a5ac1b5

commit 4be4063cef676b014733ec881bc7db6d3a5ac1b5
Author:     Dmitry Chagin <dchagin@FreeBSD.org>
AuthorDate: 2022-05-15 17:58:47 +0000
Commit:     Dmitry Chagin <dchagin@FreeBSD.org>
CommitDate: 2022-06-17 19:35:19 +0000

    linux(4): Retire unneeded initialization
    
    Both uc_flags and uc_link are zeroed above. On amd64 and i386 the
    uc_link field is not used at all. The UC_FP_XSTATE bit should be set
    in the uc_flags if OS xsave knob is turned on (and xsave is implemented).
    
    MFC after:              2 weeks
    
    (cherry picked from commit 0b5d5dc3767fcf2f0198f0f9549cb23983e0ee3e)
---
 sys/amd64/linux32/linux32_sysvec.c | 3 ---
 sys/i386/linux/linux_sysvec.c      | 3 ---
 2 files changed, 6 deletions(-)

diff --git a/sys/amd64/linux32/linux32_sysvec.c b/sys/amd64/linux32/linux32_sysvec.c
index 04f34a6561df..998691223d44 100644
--- a/sys/amd64/linux32/linux32_sysvec.c
+++ b/sys/amd64/linux32/linux32_sysvec.c
@@ -325,9 +325,6 @@ linux_rt_sendsig(sig_t catcher, ksiginfo_t *ksi, sigset_t *mask)
 	/*
 	 * Build the signal context to be used by sigreturn and libgcc unwind.
 	 */
-	frame.sf_sc.uc_flags = 0;		/* XXX ??? */
-	frame.sf_sc.uc_link = 0;		/* XXX ??? */
-
 	frame.sf_sc.uc_stack.ss_sp = PTROUT(td->td_sigstk.ss_sp);
 	frame.sf_sc.uc_stack.ss_size = td->td_sigstk.ss_size;
 	frame.sf_sc.uc_stack.ss_flags = (td->td_pflags & TDP_ALTSTACK)
diff --git a/sys/i386/linux/linux_sysvec.c b/sys/i386/linux/linux_sysvec.c
index 029ec652e0c0..fa45057939ff 100644
--- a/sys/i386/linux/linux_sysvec.c
+++ b/sys/i386/linux/linux_sysvec.c
@@ -431,9 +431,6 @@ linux_rt_sendsig(sig_t catcher, ksiginfo_t *ksi, sigset_t *mask)
 	siginfo_to_lsiginfo(&ksi->ksi_info, &frame.sf_si, sig);
 
 	/* Build the signal context to be used by sigreturn. */
-	frame.sf_sc.uc_flags = 0;		/* XXX ??? */
-	frame.sf_sc.uc_link = NULL;		/* XXX ??? */
-
 	frame.sf_sc.uc_stack.ss_sp = PTROUT(td->td_sigstk.ss_sp);
 	frame.sf_sc.uc_stack.ss_size = td->td_sigstk.ss_size;
 	frame.sf_sc.uc_stack.ss_flags = (td->td_pflags & TDP_ALTSTACK)