package/qemu: remove uneeded upstream patches

Although those patches were properly dropped when the origianl bump was
applied to the next branch (commit 4675c7d441), both net and master also
had a commit that moved the patches around when the csku fork was
removed (commit 58af9a70cc and 20f45029cc, respectively).

This seemed to have caused some confusion with git-merge, though, and
the y re-appeared after the merge.

Remove them again for good, this time.

Fixes: http://autobuild.buildroot.net/results/0adfb031c243709b0bac71599ed419b64cc514a4

Signed-off-by: Adam Duskett <Aduskett@gmail.com>
[yann.morin.1998@free.fr:
  - rewrite commit log to explain why the patches reappeared
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/qemu/0002-util-cacheinfo-fix-crash-when-compiling-with-uClibc.patch

@@ -1,43 +0,0 @@
-From d82b8540ecaf3cb09a033e4971d8645d3343211e Mon Sep 17 00:00:00 2001
-From: Carlos Santos <casantos@redhat.com>
-Date: Wed, 16 Oct 2019 22:27:30 -0300
-Subject: [PATCH] util/cacheinfo: fix crash when compiling with uClibc
-
-uClibc defines _SC_LEVEL1_ICACHE_LINESIZE and _SC_LEVEL1_DCACHE_LINESIZE
-but the corresponding sysconf calls returns -1, which is a valid result,
-meaning that the limit is indeterminate.
-
-Handle this situation using the fallback values instead of crashing due
-to an assertion failure.
-
-Signed-off-by: Carlos Santos <casantos@redhat.com>
----
- util/cacheinfo.c | 10 ++++++++--
- 1 file changed, 8 insertions(+), 2 deletions(-)
-
-diff --git a/util/cacheinfo.c b/util/cacheinfo.c
-index ea6f3e99bf..d94dc6adc8 100644
---- a/util/cacheinfo.c
-+++ b/util/cacheinfo.c
-@@ -93,10 +93,16 @@ static void sys_cache_info(int *isize, int *dsize)
- static void sys_cache_info(int *isize, int *dsize)
- {
- # ifdef _SC_LEVEL1_ICACHE_LINESIZE
--    *isize = sysconf(_SC_LEVEL1_ICACHE_LINESIZE);
-+    int tmp_isize = (int) sysconf(_SC_LEVEL1_ICACHE_LINESIZE);
-+    if (tmp_isize > 0) {
-+        *isize = tmp_isize;
-+    }
- # endif
- # ifdef _SC_LEVEL1_DCACHE_LINESIZE
--    *dsize = sysconf(_SC_LEVEL1_DCACHE_LINESIZE);
-+    int tmp_dsize = (int) sysconf(_SC_LEVEL1_DCACHE_LINESIZE);
-+    if (tmp_dsize > 0) {
-+        *dsize = tmp_dsize;
-+    }
- # endif
- }
- #endif /* sys_cache_info */
--- 
-2.18.1
-

package/qemu/0003-target-arm-arm-semi-fix-SYS_OPEN-to-return-nonzero-f.patch

@@ -1,78 +0,0 @@
-From 318f83f387678a3c0a2a729b506613011c6830b2 Mon Sep 17 00:00:00 2001
-From: Masahiro Yamada <masahiroy@kernel.org>
-Date: Fri, 17 Jan 2020 14:09:30 +0000
-Subject: [PATCH] target/arm/arm-semi: fix SYS_OPEN to return nonzero
- filehandle
-
-According to the specification "Semihosting for AArch32 and Aarch64",
-the SYS_OPEN operation should return:
-
- - A nonzero handle if the call is successful
- - -1 if the call is not successful
-
-So, it should never return 0.
-
-Prior to commit 35e9a0a8ce4b ("target/arm/arm-semi: Make semihosting
-code hand out its own file descriptors"), the guest fd matched to the
-host fd. It returned a nonzero handle on success since the fd 0 is
-already used for stdin.
-
-Now that the guest fd is the index of guestfd_array, it starts from 0.
-
-I noticed this issue particularly because Trusted Firmware-A built with
-PLAT=qemu is no longer working. Its io_semihosting driver only handles
-a positive return value as a valid filehandle.
-
-Basically, there are two ways to fix this:
-
-  - Use (guestfd - 1) as the index of guestfs_arrary. We need to insert
-    increment/decrement to convert the guestfd and the array index back
-    and forth.
-
-  - Keep using guestfd as the index of guestfs_array. The first entry
-    of guestfs_array is left unused.
-
-I thought the latter is simpler. We end up with wasting a small piece
-of memory for the unused first entry of guestfd_array, but this is
-probably not a big deal.
-
-Fixes: 35e9a0a8ce4b ("target/arm/arm-semi: Make semihosting code hand out its own file descriptors")
-Cc: qemu-stable@nongnu.org
-Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
-Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
-Message-id: 20200109041228.10131-1-masahiroy@kernel.org
-Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-
-(cherry picked from commit 21bf9b06cb6d07c6cc437dfd47b47b28c2bb79db)
-Signed-off-by: Adrien Grassein <adrien.grassein@smile.fr>
-Signed-off-by: Romain Naour <romain.naour@smile.fr>
----
- target/arm/arm-semi.c | 5 +++--
- 1 file changed, 3 insertions(+), 2 deletions(-)
-
-diff --git a/target/arm/arm-semi.c b/target/arm/arm-semi.c
-index 6f7b6d801b..4275dfc345 100644
---- a/target/arm/arm-semi.c
-+++ b/target/arm/arm-semi.c
-@@ -144,7 +144,8 @@ static int alloc_guestfd(void)
-         guestfd_array = g_array_new(FALSE, TRUE, sizeof(GuestFD));
-     }
- 
--    for (i = 0; i < guestfd_array->len; i++) {
-+    /* SYS_OPEN should return nonzero handle on success. Start guestfd from 1 */
-+    for (i = 1; i < guestfd_array->len; i++) {
-         GuestFD *gf = &g_array_index(guestfd_array, GuestFD, i);
- 
-         if (gf->type == GuestFDUnused) {
-@@ -168,7 +169,7 @@ static GuestFD *do_get_guestfd(int guestfd)
-         return NULL;
-     }
- 
--    if (guestfd < 0 || guestfd >= guestfd_array->len) {
-+    if (guestfd <= 0 || guestfd >= guestfd_array->len) {
-         return NULL;
-     }
- 
--- 
-2.24.1
-